What organ works to keep you blood plasma isotonic, so that your blood cells do not shrivel up or explode?
liver
heart
kindneys
urinary bladder
Answer:
Kidneys
Explanation:
TION
Which are listed from smallest to largest.
population, community, ecosystem
community, population, ecosystem
ecosystem, population, community
What do the results of the agar blocks indicate about the relationship between cell size and time for materials to reach the center of the cell?
Include an explanation of how the surface area-to-volume ratio, diffusion rate, and time for substances to reach the center are related. Support your explanation with data.
PLZ HELP!!! 50 points!!!
There is inverse relationship between cell size and time to reach the center.
Cell size has a inverse relationship with the time that the materials needed to reach the center of the cell because if the cell size increases more time is required for a material to reach to the center of the cell due to more distance between the center and boundary of the cell. The surface area-to-volume ratio, diffusion rate, and time for substances to reach the center are related to each other.
If the surface area to volume ratio is higher than more materials can diffuse across the membrane of the cell but more time is required to reach the center because increase in cell size leads to more distance between center and boundary of the cell so we can conclude that there is inverse relationship between cell size and time to reach the center.
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Answer:
Explanation: If the surface area to volume ratio is higher than more materials can diffuse across the membrane of the cell but more time is required to reach the center because increase in cell size leads to more distance between center and boundary of the cell so we can conclude that there is inverse relationship between cell size and time to reach the center.
Which of the following processes occurs before cellular respiration?
A) glycolysis
B) fermentation
C) ATP conversion
D) cellular respiration
Explain the primary, secondary, and tertiary structures of proteins.
Answer:
yes it is b
Explanation:
Explain the primary, secondary, and tertiary structures of proteins.
justify how birds belonging to different species might all share a common ancestor.
Answer:
When two different species having similar ancestors evolve to become different is called divergent evolution.
Birds belonging to different species might all share a common ancestor are also based on divergent evolution. Animals undergo divergent evolution for several reasons such as enviornmental changes and existance or absence of predators.
Some animals or birds adapt according to enviornmental changes for their survival and presence of predators affect the evolution of animals or birds to protect themselves from predators.
For example: Galapogas finches undergo divergent evolution in which they have same ancestors but radiates into different species such as medium ground finches, woodpecker finch, and mangrove finch.
8
An ocean food chain is shown below. Which organisms represent the trophic level
containing approximately 1% of the initial amount of solar energy (1000Kcal) acquired by
the phytoplankton?
2
Humans
Copepods!
Herring
Phytoplankton
Sand eels
OOOO
herring
humans
sand eels
copepods
Answer:
copepoda show the initial 1% amount of solar energy acquired by the phytoplankton
how does food go bad in what ways can food be preserved
Due to microbial and bacterial attack the food get spoiled.
We can preserved the food by:
Sun dyingcooling in refrigeratorsaltingchemical preservatives like, sodium benzoatePLEASE GIVE ME AS BRAINLIEST
Volcanoes are usually formed as a result of _____.
a transform fault boundary, where both plates are oceanic
a convergent boundary, where both plates are continental
a convergent boundary, where at least one of the plates is oceanic
a divergent boundary, where at least one of the plates is oceanic
Answer:
a transform fault boundary, where both plates are oceanic
Explanation:
A volcano is formed when hot molten rock, ash and gases escape from an opening in the Earth's surface. The molten rock and ash solidify as they cool, forming the distinctive volcano shape shown here. As a volcano erupts, it spills lava that flows downslope.
Answer:
a transform fault boundary, where both plates are oceanic
Explanation:
DNA molecules separate into single strands, which are then used to construct two identical strands of DNA. This process ensures that the-
Answer:
DNA replication will occur properly...!
Explanation:
The process ensures that the daughter cells are genetically identical to the cells of the parent.
DNA molecules separate into single strands, which are then used to construct two identical strands of DNA. The two strands wind around each other.
The strand of DNA has a backbone that's made of alternating sugar and phosphate groups. The daughter cells formed are genetically identical to the cells of the parent. They contain identical chromosomes just like their parent cells.
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Orange trees planted in a grove or orchard would most likely fall in which category of population distribution?
a.even
b.random
c.clumped
d. density
Answer:
A) Even
Explanation:
got it right on edge :)
Orange trees planted in a grove or orchard would most likely fall in the even category of population distribution. The correct option is a.
What is population distribution?Population distribution is how the population of something, plants, animals, or humans is distributed in specific areas. It specifies where people live or where they are not living.
There are three types of population distribution:
Uniform dispersion - In this distribution, the population is uniformly or evenly distributed in the areas. Even distribution comes under this distribution.Random dispersion - there are no predictable patterns in this dispersion. They are randomly present anywhere.Clumped dispersion - This distribution shows the bunch or group of population is areas then there is no population, and then there is a a bunch of population in another place.Thus, the correct option is a. even.
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Many processes occur in the digestive system .which process is best classified as a physical change
Answer:
This question lacks options, the options are:
A) Saliva converting the starch molecules in crackers into simple sugars
B) Digestive enzymes breaking down proteins into smaller fragments
C) bacteria converting lactose into simple sugars in the intestines
D) teeth grinding an almond into smaller pieces in the mouth
The answer is D
Explanation:
A physical change is a change that occurs to a substance without altering its chemical composition. A physical change involved a change in the substance's shape, texture, color, state etc. but not the chemical content of such substances.
In this question involving the processes that occur in digestion, a typical example of physical change is "teeth grinding an almond into smaller pieces in the mouth" because the teeth only changes the shape and texture of the almond. It does not affect the chemical composition of the almond fruit. This is also called mechanical digestion.
Note that, other options involving digestive enzymes breakdown are chemical changes because the enzymes breakdown the chemical components of each substance.
Answer: D
Explanation: because you are breaking down food in a physical change
What factor has the greatest impact on an enzyme?
Answer: Higher Classifications: Protein
Explanation:
Collectively, these are the most important properties of the enzyme. There are several factors that affect the speed of an enzyme's action, such as the concentration of the enzyme, the concentration of the substrate, temperature, hydrogen ion concentration (pH), and the presence of inhibitors.
The table compares prokaryotes, plant cells, and animal cells
Complete the table.
Present
Absent
Structure
Prokaryotes
Plant cell
Animal cell
Nucleus
Present
Cell Wall
Absent
Mitochondria
Absent
Chloroplasts
Absent
Answer:
Structure Cell 1 Cell 2
DNA Located in cytoplasm Located in nucleus
Cell membrane Present Present
Cell wall Present Absent
Mitochondria Absent Present
Ribosomes Present Present
Explanation:
Answer:
Nucleus : Absent Present Present
Cell Wall: Present Present Absent
Mitochondria: Absent Present Present
Chloroplasts: Absent Present Absent
Hope This Helps
- Greg
The pictures below show a hot spring and a geyser.
image on the left is a hotspring, image on the right is a geyser
Which of these statements is correct about the hot spring and geyser shown in the pictures?
Both are formed when the groundwater erodes limestone.
Both are formed when the groundwater gets heated.
The hot spring is formed by the heating of groundwater and the geyser is formed by the erosion of limestone by groundwater.
The hot spring is formed by the erosion of limestone by groundwater and the geyser is formed by the heating of groundwater.
Answer:
Both are formed when the groundwater gets heated
Explanation:
This is correctamundo
"why?"- you ask
well because when groundwater gets all hot and worked up we get a result in the form of geysers and hotsprings!
Have a great day and wash your hands and STOP TOUCHING YOUR FACE!
jk haha- please don't be take this seriously good day to you all!
Answer:
B. Both are formed when the groundwater gets heated.
Explanation:
Hot springs and geysers are very similar when it comes to how they are formed. The obvious difference is that geysers force up jets of water, whilst hot springs flow water out on their own. They are both formed when the groundwater gets heated from molten rock(magma).
This is reliable because I took the same quiz and got the question right.
Nucleotide are composed of phosphate group, a sugar , and a nitrogenous base. DNA is made up of long strands of nucleotide. which part if the above molecule can differ between nucleotide?
A- The Sugar
B- The Phosphate Group
C- The Nitrogenous Base
D- The Sugar and Phosphate Group
Answer:
C
Explanation:
The nitrogenous base can change
Give one example of an invasive species that you researched or that we talked about in class. Provide the following information.
1) Name of Invasive Species
2) What problem(s) does it cause
3) Why is it so hard to remove an invasive species from a location?
Answer:
1. green crab
2. Green crab populations in New England have been associated with crashes in shellfish populations, reduced biodiversity, destruction of eelgrass beds, and declines in native crab species.
3. They spread very rapidly
Explanation: Hope this helps!
what is the difference between the physical layers and the composition layers
Answer:
The Earth has different compositional and mechanical layers. Compositional layers are determined by their components, while mechanical layers are determined by their physical properties. The outermost solid layer of a rocky planet or natural satellite.
Explanation:
Describe a car’s velocity as it goes around a track at a
constant speed.
Answer:
If the car is going at a constant speed then the velocity isn't changing, only the direction of velocity.
True or false:
This is for science and I only have one more question but it's getting me stuck: if you get this right I'll vote you brainiest!:)
If a gene sequence changes, the proteins associated with that gene could likewise
be affected. True/False
Answer:
True
Explanation:
A population of 20 monarch butterfly is colonize a meadow. The meadows carrying capacity for a monarch butterfly's is 5000 individuals. What statement best describes the growth rate of the population of Monarch butterfly after the Meadow is colonized?
Answer:
D
Explanation:
A.
The population grows exponentially until it approaches 5,000 individuals, and then the population size begins to decrease.
B.
The population grows exponentially until it approaches 5,000 individuals, and then its growth rate decreases.
C.
The population grows at a constant rate until it approaches 5,000 individuals, and then its growth rate increases.
D.
The population grows at a constant rate until it approaches 5,000 individuals, and then the population size remains stable.
The statement that best described the growth rate of the Monarch butterfly after the Meadow was colonized would be that the population grows at a constant rate until it approaches 5,000 individuals, and then the population size remains stable.
The carrying capacity generally represents the maximum number of individuals of a particular species an environment can support based on the resources that the environment has. Ideally, the population only stabilizes with very minimal oscillation around the carrying capacity. It neither decreases nor increases significantly unless a major disruption happens.
The only option that addresses the stability of populations around the carrying capacity of the environment is option D.
The correct answer is D.
5 points
Transmembrane proteins span the width of the cell membranes. Four types of transmembrane proteins are shown in a section of cell membrane.
groene
Although these proteins have different specific functions, they all-
A-stop chemical reactions within the cell
B-synthesize molecules that signal other cells
C- help the cell interact with its external environment
D- remove large waste particles from the cytoplasm of the cell
Answer:
C. help the cell interact with its external environment
Explanation:
A transmembrane protein (TP) is a type of integral membrane protein that spans the entirety of the cell membrane. Many transmembrane proteins function as gateways to permit the transport of specific substances across the membrane.
Although transmembrane proteins have different specific functions, they always HELP the cell interact with its external environment.
Transmembrane proteins are a broad category of membrane proteins that act as carriers and/or transporters in order to allow the movement of specific substances across cell membranes.
After binding to their specific ligands, the three-dimensional (3D) shape of transmembrane proteins changes in order to allow the movement of molecules and ions through the cell membrane.
For example, aquaporins are a type of transmembrane protein that regulates the entry of water (H2O) molecules into and out of cells.
In conclusion, although transmembrane proteins have different specific functions, they always HELP the cell interact with its external environment.
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Review why carbon can form a variety of organic compounds in a variety of shapes.
Answer:
Carbon atoms readily bond with each other and can form long chains, branched molecules, and rings—an enormous variety of carbon backbones for organic molecules.
Explanation:
Carbon atoms easily connect with one another, allowing for the formation of lengthy chains, branching molecules, and rings—a vast array of carbon backbones for organic molecules.
What is carbon?Carbon is defined as the elements are distinguished by their capacity to form firmly bound chains that are sealed off by hydrogen atoms.
Carbon is also defined as an atomic number 6 chemical element with the symbol C.
Carbon is nonmetallic and tetravalent, with each atom releasing four electrons to form covalent chemical connections.
Carbon has the capacity to quickly form bonds with other atoms, which allows for greater flexibility in the shape and function of biomolecules such as DNA and RNA, which are required for the defining traits of life growth and replication.
An organic molecule is defined as a complex molecule composed mostly of carbon atoms that are bound with other elements and/or other carbon atoms.
Carbohydrate, lipids, nucleic acid and protein are some of the example of organic molecules.
Thus, carbon atoms easily connect with one another, allowing for the formation of lengthy chains, branching molecules, and rings—a vast array of carbon backbones for organic molecules.
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Identify the true statements below.
The reaction of an exploding firework occurs at a faster rate than a burning candle.
The activation energy required for an exploding firework is less than the activation energy required for a burning candle.
Answer:
In the explanation-----
Explanation:
The first statement is correct since the gun explosive powder explodes since they light a fuse at first, and once the fuse reaches the end it explodes as a reaction. However, for a candle it relies on the lit fire. Wax is a tough and a longer substance to melt compared to a exploding firework.
For the activation energy for the firework, it uses that energy in a result of the fuse reaching the end and reacting with the gun powder.
Answer:
A is the correct answer
Explanation:
I took the test
Guys I need help
Please it DUES TODAY please
GUYS IT SOOOOOO HARD
Answer:
the pod splits, the cherry's bright red attracts animals to eat it and the last one is called a Bur
Explanation:
4
In the food chain: plant parts --> cricket ---> mouse ---> hawk, which organism is the tertiary consumer
Answer:
Hawk
Explanation:
Hawks are considered to be secondary or tertiary consumers in a food chain. This means they eat primary consumers and other secondary consumers.
Answer:
eagle
Explanation:
What are the conditions favouring AIR-BORNE disease?
Answer: cold, highly populated areas
Explanation: flu is a great example of an airborne disease. flu is spread mainly at parties, stores, and big cities. Diseases like these like cold air, as warmer air kills it. This is why you should wash your hands with warm water.
hope this helps! Please let me know<3
Answer:
Many common infections can spread by airborne transmission at least in some cases, including but not limited to: CO.VID-19; measles morbillivirus, chickenpox virus; Mycobacterium tuberculosis, influenza virus, enterovirus, norovirus, and less commonly coronavirus, adenovirus, and possibly respiratory syncytial virus.
Air-borne diseases are favoured in various ways like if the pollution rate is high then the spreading of air-borne diseases will be high.
The air-borne disease can also be spread in case if a sick person sneezes or coughs the microbes that cause the disease will be spread in the air and could be inhaled by healthy people which will make them sick.
can someone please help me ..
1. Where might you find involuntary muscle?
In your arms
In your mouth
In your toes
In your stomach
Answer:
please mark brainliest!
Explanation:
Other involuntary muscles help digest food and are found in your stomach and intestines.
Answer:
D. in your stomach
Explanation:
Trust me i got it right its your stomach because when your stomach rumbles you don't control it, it just happens when your hungry, just and example.
What do you think would happen to a shell-less ("naked") egg if water passed through the membrane
Answer:
Explanation:
I think it will wash out the yolk and something else out