Answer:
LSD (lysergic acid diethylamide) is a synthetic chemical, made from a substance found in ergot, which is a fungus that infects rye (grain).
So d) Fungus.
Who began experimenting gravity in the late 1500s and early 1600s
Can someone draw a:
High power drawing of a an alveolar sac and its alveoli
The lungs contain microscopic air sacs called alveoli. They are in charge of the gas exchange between the bloodstream and the respiratory system. Alveolar sacs are collections of alveoli on a stem that resemble grapes.
Alveolar sac and alveoliA network of microscopic blood tubes known as capillaries surround each alveolus. Although carbon dioxide from the bloodstream diffuses into the alveoli to be exhaled out of the body, oxygen from the breathed air diffuses over the flimsy walls of the alveoli and capillaries into the bloodstream.
small air sacs near the bronchioles' ends (tiny branches of air tubes in the lungs). During breathing in and out, oxygen and carbon dioxide are exchanged between the blood and alveoli in the lungs.
Alveoli have incredibly thin walls that are covered in a substance known as surfactant. Surfactant aids in lowering the fluid's surface tension, which makes it easier for the alveoli to expand during inhalation and keeps them from collapsing during exhalation.
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what do the descending tracts of the spinal cord contain? white matter and transmit sensory information white matter and transmit motor commands grey matter and transmit sensory information grey matter and transmit motor commands
The descending tracts of the spinal cord contain white matter and transmit motor commands.
The spinal cord is a tubular-shaped bundle of nerves that is a component of the central nervous system. It is located in the vertebral column and runs from the brain stem to the lumbar region. It serves as a bridge between the brain and the rest of the body.
The white and gray matter of the spinal cord is arranged differently. The spinal cord is divided into four regions based on its tracts: the lateral, dorsal, anterior, and ventral columns. The sensory tracts (ascending) of the spinal cord are in the dorsal columns, whereas the motor tracts (descending) are in the ventral columns.
The spinothalamic tract, the posterior column-medial lemniscus pathway, and the corticospinal tract are the three main ascending and descending tracts. The descending tracts of the spinal cord are motor tracts that transmit impulses from the brain to the spinal cord to manage movement and muscle contraction.
The corticospinal tract is the most well-known of these tracts, and it is responsible for most voluntary movement. It transmits impulses from the cerebral cortex to the spinal cord, where it assists in the coordination of motor responses.
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9. the pancreas adds with digestion by: a. neutralizing acid chyme (gastric secretion mixed with food) b. secreting enzymes to breakdown macromolecules (proteins, fats, and carbohydrates) c. fat emulsification d. both a and b are correct
The correct option is D. The pancreas secretes enzymes to break down macromolecules (proteins, fats, and carbohydrates) and neutralizes acid chyme during digestion.
The pancreas secretes pancreatic juice that aids in digestion. It contains a variety of enzymes that help break down macromolecules such as proteins, fats, and carbohydrates. Pancreatic amylase digests carbohydrates, lipase digests fats, and proteases break down proteins. The pancreas also neutralizes acidic chyme by secreting bicarbonate, which neutralizes the acidic pH of the chyme arriving in the small intestine.
The pancreas has two primary functions: endocrine and exocrine. The endocrine function of the pancreas is to produce insulin and glucagon, which control blood sugar levels. The exocrine function of the pancreas is to produce digestive enzymes and bicarbonate that aid in digestion.
Digestion is the process of breaking down food into smaller pieces. Enzymes are proteins that catalyze chemical reactions in the body. Enzymes are essential for the proper functioning of many biochemical processes in the body, including digestion, metabolism, and cellular respiration.
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A seed must be pollinated ___________ it is harvested in order to have a viable seed that has a possibility of growing into a mature plant
A seed must be pollinated before it is harvested in order to have a viable seed that has the possibility of growing into a mature plant.
Pollination is the transfer of pollen from the male reproductive organs (stamen) to the female reproductive organs (pistil) of a flower, which leads to fertilization and the formation of seeds. Without pollination, the ovules in the pistil will not be fertilized, and the seed will not develop properly. Therefore, it is important for the plant to be pollinated before the seed is harvested to ensure that the resulting seed will be viable and capable of growing into a mature plant. When pollen lands on the stigma of a flower of the same species, the pollen grain germinates, and a pollen tube grows down the style towards the ovary. The male gametes (sperm cells) are carried by this tube to the ovules within the ovary, where they fertilize the female gamete (egg cell) to form a zygote. This process leads to the development of a seed, which contains the embryonic plant, a food reserve, and a protective seed coat.
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Question 7
Which of the following questions describes the type of wave which requires a medium to transfer energy?
A. What are ultraviolet light waves?
B. What are x-rays?
C. What are mechanical waves?
D. What are electromagnetic waves?
As sound or water waves were mechanical waves, they must move via a medium.
Correct option is, C.
What wave travels through the medium?Mechanical waves are movements that pass through solids, liquids, or gases with a wave speed that is solely dependent on the elastic and inertial properties of that medium. The two most frequent wave motions for mechanical waves are longitudinal waves and transverse waves.
What kind of energy passes through a medium as a wave?There's a vibration inside the medium particle as a wave goes through it. Just their position causes the medium's particles to vibrate. The particles of the medium are not moved. In term of their vibration, only the energy is transferred through one media particle to another.
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when would a cell need to undergo mitosis, give 3 reasons.
For a variety of reasons, including growth and development, tissue repair and regeneration, and asexual reproduction, a cell must go through mitosis.
Why is mitosis required in cells?Mitosis is mostly used for cell growth and replacement during times of stress. Mistakes made during mitosis may affect the DNA and, if not addressed in time, may result in genetic diseases.
There are four causes for cell division.For you to grow or for an embryo to mature, cells must divide repeatedly. Moreover, cells divide to replace harmed or worn-out cells. The majority of cell division results in genetically identical cells, or cells with the same DNA.
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State two ways in which the learners could ensure that their results were valid
The two ways that learners could ensure valid results is through controlling of their variables and improving their measurement techniques.
What is a valid result?A valid result after a research or an experiment is defined as the result that can be tested and proven to be without errors or with minimum amount of error.
The two ways through which researcher can ensure they maintain a valid result is through the following:
controlling of their variables and improving their measurement techniques.using a valid and controlled equipments.avoiding any forms of errors such as parallax error.Learn more about valid results here:
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HELP ME
In females, the menstrual cycle is governed by combinations of hormones produced at various levels all throughout the entire cycle by the thyroid, pituitary, and adrenal glands. Irregularity in the amounts or combinations of these hormones can cause many reproductive disorders. Many other disorders can to a larger extent upset the balance of these hormones, and cause other issues. Some disorders cause or are caused by anomalies of sexual structures, which can be treated with surgery. Many with these disorders also increase tje risk of various autoimmune disorders, or other genetic disorders. Also, both genders can develop sexually transmitted diseases, that can cause reproductive disorders.
Research one of the reproductive disorders found on the website below, or any other that you find. Write an 800 word report on the disorder, including what its symptoms are, who it can affect most, and what other issues it can cause. Also include information about what medications or treatments are available, how they help control the disorder or relieve symptoms, and how effective they are. Make sure to cite your sources, and include statistics in a table or a graph based on information you found about your disorder.
Multiple Select Question
Select all that apply
Which events occur in a cell during metaphase?
A. The microtubules of the spindle apparatus begin to shorten.
B. The sister chromatids to separate into two identical chromosomes.
C. Sister chromatids line up in the equator of the cell.
D. Sister chromatids are pulled by motor proteins along the spindle apparatus toward the center of the cell.
Answer:
The only correct options are C and D.
Imagine you are a science writer who is writing a series of articles to tell people about your local natural resources. Use the information you gathered to write a 300- to 500-word article about the natural resource you chose. Explain why people should be interested in the resource, why it is found in your area, and how and why its supply is changing.
Answer:
The natural resource I have chosen to write about is the rich mineral deposits found in the mountains surrounding my hometown. The area is home to a variety of minerals, including gold, silver, copper, and iron.
People should be interested in these mineral resources for a number of reasons. For one, these minerals have played a critical role in human history, from the ancient Egyptians who used copper to create tools and weapons, to the gold rush that fueled the expansion of the American West. In modern times, these minerals are essential components of many of the technologies we use every day, from smartphones to solar panels.
The presence of these minerals in our area is due to the geological processes that created the mountains. Millions of years ago, tectonic activity caused magma to rise to the surface, creating mineral-rich veins that were subsequently exposed through erosion. These mineral deposits have been mined for centuries, with some of the oldest mines in the region dating back to the 16th century.
Despite the long history of mining in the area, the supply of these minerals is not infinite. The high demand for these minerals, combined with the finite nature of the resources, has led to increased pressure to extract them as quickly and efficiently as possible. This has led to concerns about the environmental impact of mining operations, as well as the potential for conflict over control of these valuable resources.
To address these concerns, efforts are being made to develop more sustainable and responsible methods of mining. This includes implementing practices that minimize the impact on the environment, such as using water and energy more efficiently, and finding ways to reuse or recycle the materials used in mining. Additionally, there is a growing interest in developing alternative sources of these minerals, such as through urban mining or the use of biotechnology.
In conclusion, the mineral resources found in the mountains surrounding my hometown are a fascinating and valuable part of our natural heritage. As we continue to rely on these minerals for the technologies that power our lives, it is important to be mindful of the impact of our actions on the environment and on the communities that rely on these resources. By working together to develop more sustainable and responsible practices, we can ensure that these minerals continue to benefit us for generations to come.
Explanation:
You have a container of soil with a particle size of 1. 5 mm. You mix this soil into your garden which is mostly silt and clay. How will this affect the permeability of the newly combined soil? The new soil will increase the permeability of the garden. The new soil will have no effect on the permeability of the garden. The new soil has the same permeability as the garden. The new soil will decrease the permeability of the garden
The garden's permeability will rise as a result of the additional soil.
What is permeability of soil ?The permeability of newly mixed soil will often increase when dirt with a bigger particle size is added to soil that is primarily silt and clay. This is so that water may move through the soil more freely since the larger particles leave holes or pores between them. Silt and clay particles, on the other hand, have a propensity to clump together more closely, limiting the amount of space available for water to move through.
What is Silt and Clay ?
Silicate minerals, or those containing silicon and oxygen, make up silt. Metal silicates, or silicates having metals like magnesium or aluminium linked with them, make up clay. The biggest observable difference between the two, however, when treating the two as a part of an experiment, is particle size.
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11. Dark green snake plant leaves are the dominant trait over yellow snake plant leaves. If a
homozygous recessive plant was crossed with a heterozygous plant, create a Punnett
Square to show the possible outcomes of the offspring (4 points).
Answer:
In the photo, I apologize for the Russian language, I'm just from Kazakhstan, but I wrote some in English
Does alzheimers disease have a particular chromosome it is located on?
6. A person with brown hair inherited genes for brown hair from one parent and genes for red hair from the other parent. Which of these describes the red hair genes?
A. recessive
B. heterozygous
C. homozygous
D. dominant
Answer:
recessive
it has to be because brown hair is showing even though one parent had red
Why is it harder to breathe when climbing up a high mountain?(1 point) responses the air is thinner. The air is thinner. The air has more moisture. The air has more moisture. The air compresses the lungs. The air compresses the lungs. The air pressure increases. The air pressure increases
The main reason it's harder to breathe when climbing up a high mountain is that the air is thinner at higher altitudes.
Why is it difficult to breathe when climbing up a high mountain?As you ascend, the atmospheric pressure decreases, which means that there are fewer air molecules per volume of air. This reduction in air molecules means that each breath you take contains less oxygen, making it harder for your lungs to extract the oxygen your body needs.
Additionally, at higher altitudes, the air is often colder and drier, which can irritate the respiratory tract and cause inflammation, further restricting airflow. However, it's not correct to say that the air has more moisture or that it compresses the lungs.
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BRAINLIEST + 100pts!!! NEEDS ASAPPPP
matching!! see image.
Hydroponics - D
Aquaponics - B
Aquaculture - C
Permaculture - A
Organisms that are able to reproduce asexually, like some of the Psudoceros dimidiatus, shown in the image, create identical copies of themselves through asexual reproduction.
If the Pseudoceros dimidiatus begins with 18 chromosomes how many will it have after reproduction occurs?
If the Pseudoceros dimidiatus begins with 18 chromosomes then the number of chromosomes after reproduction occurs will be the same, i.e., 18 chromosomes.
Why do organisms maintain the same number of chromosomes across generations?The organisms maintain the same number of chromosomes across generations in order to produce balanced cells which have the correct genetic information to be expressed, in addition to the generation of balanced gametes during meiosis.
Therefore, with this data, we can see that organisms maintain the same number of chromosomes across generations and this feature is critical for the survival of the species.
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of the following characteristics, which is seen in both molluscs and annelids? group of answer choices pronounced external body segmentation an alimentary canal with two openings two tissue layers an exoskeleton that molts a muscular foot
The characteristics that are seen in both molluscs and annelids are: pronounced external body segmentation, an alimentary canal with two openings, two tissue layers, and a muscular foot. The correct option is A, B, C and E.
Molluscs and annelids both possess pronounced external body segmentation. This means that their bodies are divided into multiple sections, or segments, which can be clearly seen. Additionally, they both possess an alimentary canal with two openings. This is the tube that runs through their bodies and which is responsible for the digestion of food.
They also both possess two tissue layers: an inner endoderm layer and an outer ectoderm layer. Lastly, both molluscs and annelids possess muscular feet. This is the organ which they use to help them move.
In contrast to molluscs and annelids, neither possess an exoskeleton that molts. An exoskeleton is an external skeleton that hardens and is shed as the organism grows. This is not seen in either of these two types of organisms.
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Which generation are purebred and which are hybrids?
Answer:The parents in the F1 generation are purebred. The parents in the F2 generation are hybrids.
Explanation:
There are 5 Gyres on Earth. However, one of these Gyres are incorrect; meaning the energy levels are inaccurate
determine which one is wrong and explain why
There are actually only 4 major oceanic gyres on Earth, not 5.
The four major gyres are the North Atlantic Gyre, South Atlantic Gyre, North Pacific Gyre, and South Pacific Gyre. The fifth gyre that is often mentioned is actually a region of rotating ocean currents known as the Indian Ocean Gyre, but this is not a true gyre as it does not have a complete circular flow due to the influence of land masses.
It's important to note that the energy levels of oceanic gyres can fluctuate over time due to natural variations in ocean currents and climate patterns. However, the idea of a fifth major oceanic gyre is not accurate and can be misleading. Understanding the true number and behavior of oceanic gyres is important for predicting and managing issues such as plastic pollution and climate change impacts on ocean circulation.
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Mention two reasons why south africans usually resort to violent xenophobia attacks
Answer:
It's almost the only way to get people to listen, gets a reaction out of people
Suppose a person is 80 years old and that puberty took place when he or she was 12 years old. a. Calculate the percentage of the person's life that he or she spent in each of the four stages of development that follow birth. b. Make a bar graph showing the percentage for each stage.
Percentage of life spent in infancy = = 2.5%
Percentage of life spent in early childhood = 5%
Percentage of life spent in middle childhood = 6.25%
Percentage of life spent in adolescence = 8.75%
What is the percentage of the person's life that he or she spent in each of the four stages of development that follow birth?Assuming the four stages of development are infancy (0-2 years), early childhood (3-6 years), middle childhood (7-11 years), and adolescence (12-18 years):
Total years lived = 80
Years spent in infancy = 2
Years spent in early childhood = 4
Years spent in middle childhood = 5
Years spent in adolescence = 7
Percentage of life spent in infancy = (2/80) x 100%
Percentage of life spent in infancy = = 2.5%
Percentage of life spent in early childhood = (4/80) x 100%
Percentage of life spent in early childhood = 5%
Percentage of life spent in middle childhood = (5/80) x 100%
Percentage of life spent in middle childhood = 6.25%
Percentage of life spent in adolescence = (7/80) x 100%
Percentage of life spent in adolescence = 8.75%
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how does exercise affect the amount of co 2produced from cellular respiration? where in your cells is atp being converted for quick energy and what are the products of this reaction?
Exercise affects the amount of CO2 produced from cellular respiration. Exercise and cellular respiration have a symbiotic relationship. This occurs because exercise increases the amount of oxygen (O2) that reaches the muscle cells. The primary function of cellular respiration is to create ATP (adenosine triphosphate), which is energy that can be used by the body.
Therefore, the more exercise one does, the more oxygen (O2) will reach the muscle cells, and the more ATP can be produced. Cellular respiration is the process by which glucose and oxygen are converted into energy in the form of ATP. ATP is then used to fuel the body's energy requirements.
The reaction takes place in the mitochondria of the cell, which is referred to as the "powerhouse" of the cell. In this organelle, a process called oxidative phosphorylation occurs, in which electrons are transferred from one molecule to another, generating ATP.
The products of this reaction are carbon dioxide (CO2) and water (H2O).
The process of cellular respiration occurs in three stages: glycolysis, the citric acid cycle, and oxidative phosphorylation.
Glycolysis occurs in the cytoplasm of the cell and involves the conversion of glucose into two molecules of pyruvate.
The citric acid cycle occurs in the mitochondria and involves the conversion of pyruvate into energy-rich molecules such as ATP, NADH, and FADH2.
Finally, oxidative phosphorylation occurs in the mitochondria and involves the transfer of electrons from NADH and FADH2 to oxygen, producing ATP and water as byproducts.
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How many micrometers is a paramecium cell?
Answer:
50 to 330 micrometers
Explanation:
Description. Species of Paramecium range in size from 50 to 330 micrometers (0.0020 to 0.0130 in) in length. Cells are typically ovoid, elongate, or foot- or cigar-shaped.
A 7th-grade science student performed an experiment. They placed a single white carnation flower in three different beakers. In the first beaker, they placed 50 ml of boiling water with a single drop of blue food coloring. In the second beaker, they placed 50 ml of room temperature water with a single drop of blue food coloring. In the third beaker, they placed 50 ml of water which had been placed in the refrigerator for 24 hours, and a single drop of blue food coloring. After 1 hour the student checks the flower to see if the color of the flower had changed. Please explain what the independent, dependent, and controlled variables are in the experiment. onces and present information learned in this unit.
The Colored Carnations Science Experiment serves to illustrate that the water isn't just evaporating. Additionally, you'll finish up with a lovely bunch of flowers.
What happens when you put a carnation in colored water?Fill each colorful water glass with one carnation and the plain water glass with one. Keep an eye on what occurs! The carnations will absorb the water and change hues. This might manifest in a matter of hours or days. This is possible because water adheres to itself (cohesion) and the tubes in the plant stem are extremely small.
Capillary motion refers to the flow of water via small channels. Food coloring does not hurt the plant, but it does allow you to watch the passage of water into the bloom.
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Discuss how relationships can have a (A) positive and (B) negative influence on self-esteem, but (C) not on self-image.
Answer:
A) Positive Influence on Self-Esteem: Relationships can have a positive influence on self-esteem when they are supportive, affirming, and validating. When individuals feel valued and appreciated by their partner, family, or friends, it can enhance their sense of self-worth and self-esteem. Positive feedback, compliments, and expressions of love can help individuals feel good about themselves and improve their self-esteem.
B) Negative Influence on Self-Esteem: On the other hand, relationships can have a negative influence on self-esteem when they are critical, invalidating, and abusive. Negative feedback, criticism, and insults can lower an individual's self-esteem and make them doubt their worth and value. When someone experiences emotional or physical abuse, it can lead to a decreased sense of self-esteem and feelings of worthlessness.
C) Not on Self-Image: While relationships can have a significant impact on self-esteem, they may not have as much influence on self-image. Self-image refers to how an individual sees themselves, including their physical appearance, personality traits, and abilities. Although relationships can affect how an individual feels about themselves, it may not necessarily change their self-image. For example, if someone has always struggled with body image issues, a supportive partner may help them feel better about themselves, but it may not necessarily change their perception of their physical appearance. Similarly, if someone has always felt confident in their abilities, a critical partner's negative feedback may lower their self-esteem, but it may not change their overall self-image.
In conclusion, relationships can have both positive and negative effects on an individual's self-esteem, but may not necessarily affect their self-image. Positive and supportive relationships can enhance self-esteem, while critical and abusive relationships can lead to lower self-esteem. It is essential to maintain healthy relationships that are supportive and validating to promote positive self-esteem and overall well-being.
what type of rock most likely contains fossils
Answer:
please make me brainalist and keep smiling dude I
Explanation:
Almost all fossils are preserved in sedimentary rock.If the cells in your body are being attacked and damaged, yoou can infer that microbes ___________
a
are living the dry regions of your body
b
that make you sick have entered your body
c
are working to break down the food you eat
d
from your mother have been passed on to you
How do the processes of weathering, erosion, and deposition help explain the uneven distribution of soil shown in this image?
Passage
The soil in this valley is distributed unevenly. Most of it is
found in the lowest part of the valley.
The processes of weathering, erosion, and deposition help explain the uneven distribution of soil in the valley.
What is weathering?Weathering refers to the breakdown of rocks into smaller particles, and this process is affected by factors such as temperature, water, and wind.
What is erosion and deposition?Erosion refers to the movement of these particles, usually by water or wind, while deposition refers to the settling of these particles in a new location.
In the case of the valley, weathering has likely contributed to the breakdown of the rocks and soil in the area.
However, it is the processes of erosion and deposition that have led to the uneven distribution of soil. Water and wind have likely transported the soil particles from higher elevations to the lowest part of the valley where they have settled and accumulated over time.
This has resulted in the majority of the soil being found in the lowest part of the valley, while the higher elevations have less soil due to the effects of erosion and deposition.
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