Scenario 1
When you think of the American Southwest, you probably think of cacti, both big and small. If you were to
visit the American Southwest today, you might be disappointed with the lack of variation among cactus
species, especially right off the major highways. In 1926, Route 66 was the nation's first major highway to
allow visitors to visit the Southwest. Like many tourists, these visitors wanted to take home a memento of
their travels. Many people would pull over and begin looking for their own living souvenir. Since many of the
tourists did not have the necessary tools to extract a spiny cactus out of the soil, they usually had to make a
conscious decision about what type of cactus they should dig up. The cacti with too many spines were seen
as too difficult to dig out, and the visitors likely didn't have gloves to protect their hands. The cacti with too
few spines were seen as homely and were often overlooked. Therefore, the tourists found a cactus that was
between these two extremes. Over the last century, the phenotypic variation within these small cacti has
changed (at least in areas accessible by these highways).
What part of earth absorbs most sunlight
Answer:
The atmosphere
Explanation:
Answer:
The equator.
Explanation:
"The equator receives the most solar radiation in a year. The difference in the amount of solar energy the land receives causes the atmosphere to move the way it does."
I wasn't so sure about this question. During my research, the internet says atmosphere, equator, and then oceans. I believe it's more of the equator than anything, but there are three choices to choose from.
I hope this helps!
How do cats catch worms
What was John snows original hypothesis and how did it conflict with prevailing models of Heath and disease
Answer:
Explanation:Snow's hypothesis was that contaminated water was the source of the disease, but the challenge was how to prove this to others who were skeptical. ... It is now known that cholera is a waterborne disease, spread when water used for drinking or washing food has been contaminated with feces from infected individuals.
4. Discuss the role of necrohormones
Answer:
neurotransmitter is a chemical messenger that carries, boosts, and balances signals between neurons (also known as nerve cells) and target cells throughout the body.
Pleaseeee help!!! (psychology edge) Androgens and estrogens are hormones that impact the sexual response cycle. Write about the four phases of that cycle and explain how the two types of hormones are involved.
Answer:
Females and males each have some amount of the sex hormones, androgens and estrogens. In males however, androgens like testosterone is more dominant and in females estrogens like estradiol are more dominant. The hormones both affect the sexual response cycle. The sexual response cycle has four phases: desire, arousal, orgasm and resolution. The desire phase can last anywhere from a few minutes to hours and includes physical changes like an increase in muscle tension, heartbeats quickening, flushed skin, and an increased flow of blood to genitals. The arousal phase extends to the brink of the orgasm phase, during this phase the changes experienced in the desire phase are intensified along with blood pressure increasing. The orgasm phase generally only lasts a few seconds and is the climax of the sexual response cycle, some characteristics include: Involuntary muscle contractions and spasms, blood pressure, breathing, and heart rate at their highest point, a release of built up sexual tension, and flushed skin. During the resolution phase the body returns to normal, often a sense of wellbeing and fatigue is achieved. To begin the cycle a male need a certain amount of the androgen, testosterone, but high levels in females tend to lead to more sexual thought and desires, typically though, women have relatively low levels of testosterone. In women, estrogens, such as estradiol are more common. Estrogens are produced when a girl starts puberty and helps her reproductive cycle begin. A high level of estrogen in men can lead to a reduced sex drive, loss of hair, or trouble focusing, but a normal level in men is crucial to proper erectile function.
Explanation:
I just submitted this, i hope it helps :)
What is Anaerobic respiration?
Answer:
"Anaerobic respiration is the process of creating energy without the presence of oxygen. Sometimes the body can't supply the muscles with the oxygen it needs to create energy – such as in a sprinting situation."
I hope this helped!
Answer:
The release of a relatively small amount of energy by the breakdown of food substances in the absence of oxygen. Glucose is broken down to release energy in the absence of oxygen, forming lactic acid in muscle tissue, or alcohol plus carbon dioxide in yeast and plants.
Explanation:
HURRY WHAT IS THE ANSWER IM TIMED ON THIS?!?!?!
Answer:
3. A solution where there are less solutes in the solution than in the cell.
Describe how transposable elements create mutations within an organism and how transposable elements facilitate chromosomal rearrangements.
Answer:
Transposable elements are discrete segments of DNA that can be excised and reintegrated to another site in the genome, these can inactivate the gene in which they reside, cause chromosome breaks, and / or transpose to a new location within the genome.
Explanation:
Transposable elements are fragments of DNA that have the ability to jump from one part of the genome to another. While most of the DNA is always in the same place surrounded by the same neighboring pieces of DNA, mobile elements move from one place to another causing many changes or mutations. When a transposon moves through the genome, it can insert into a vital gene, disrupting its function, or into a location near vital genes, causing erroneous activation or inactivation.On the other hand, there can be chromosomal rearrangements due to transposons of the same family with complementary sequences that are separated in the genome and that by sequence homology match. This can lead to ectopic recombination. Large-scale rearrangements induced by mobile elements are considered a particular class of recombination events that influence genomic plasticity.
what are the inputs for photosynthesis and where are they used?
Answer:
In terms of inputs, outputs and energy transformations, photosynthesis can be summarized as follows. Inputs - Sunlight as energy source, carbon dioxide and water. Processes - Chlorophyll traps sunlight; the energy is used to split water molecules; hydrogen from water is combined with carbon dioxide to produce glucose.
Explanation:
Which microscope is used to check organelles of human cheek cell?
Answer:
4x or 10x
Explanation:
You need one of those to find the cells and then you can increase magnification
What are the two most important driving forces of metamorphism?
A. High heat and pressure
B. Melting and cystallization
C. Deposition and lithification
D.Weathering and accumulation
E.Magma and lava
ne questions
Answer:
Heat and pressure
Explanation:
Metamorphic rocks are found deep underground
The two most important driving forces of metamorphism are high heat and pressure (option A).
These two factors play a significant role in transforming rocks into metamorphic rocks. When rocks are subjected to high temperatures and pressures, the minerals within them undergo changes in their composition, structure, and texture. This process leads to the formation of new minerals and the recrystallization of existing minerals, resulting in the development of distinct metamorphic textures and structures.
The course of transformation doesn't dissolve the stones, however rather changes them into denser, more conservative rocks. Rearrangements of mineral components or reactions with fluids that enter the rocks produce new minerals.
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How do these animals most likely make up for not being able to store adequate energy in fat reserves?
A) by arousing from hibernation every day to venture outside their burrows to forage for food
B) by breaking down the chemical energy stored in other parts of their bodies, such as their muscles
C) by storing extra food in their burrows so that they can refuel during periodic arousals from hibernation
D) by lowering their metabolic rates so drastically that their bodies require a
Which of the following statements about exponential growth curves is true?
- a. Exponential growth curves are common for R-selected species.
b. Exponential growth curves show fast growth rates followed by slow growth rates.
C. No organisms in nature experience exponential growth rates.
d Exponential growth curves are S-shaped.
Please select the best answer from the choices provided
B
ОООО
Answer:
Which of the following statements about exponential growth curves is true?
- a. Exponential growth curves are common for R-selected species.
Explanation:
The statement that is true about exponential growth curves is as follows:
Exponential growth curves are common for R-selected species.Thus, the correct option for this question is A.
What is an Exponential growth curve?An Exponential growth curve may be defined as a type of growth curve that significantly illustrates greater increases in the population of organisms with respect to time. It immediately represents the growth with extreme fast rates.
Exponential growth is followed by the continuous breeding population which contains more individuals than a similar population breeding annually. It includes examples like some insects, r-selected species, etc.
The shape of the exponential growth curve is J-shaped. It represents only fast growth rates. While the logistic growth curve shows fast growth rates followed by slow growth rates. It possesses a shape known as S-shape. It represents the growth rate of k-selected species.
Therefore, the correct option for this question is A.
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What effect does dietary protein have on the body?
Answer:
Dehydrating effect
Explanation:
Answer:
Dietary protein serves several important functions. It provides the essential amino acids, which are used for protein synthesis in the growth and repair of tissue, and it is the body's principal source of nitrogen.
Which planet is the smallest and the closest to the Sun?
Earth
Mars
Mercury
Venus
Answer:
yes its Mercury
Explanation:
cuz its da Brainly User my man =)
The smallest and closest planet to the sun is Mercury.
Solar systemThere about nine planets in the solar system. These planets orbit the sun at different rates.
The planets that make-up the solar systemThe planets that make up the solar system include the following, starting from the closest to the sun to the farthest from the sun.
MercuryVenusEarthMarsJupiterSaturnUranusNeptunePlutoThus, the smallest and closest planet to the sun is Mercury.
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9. Why is it not reasonable to think that all variables can be controlled?
I
Answer:
Any given experiment has numerous control variables, and it's important for a scientist to try to hold all variables constant except for the independent variable. If a control variable changes during an experiment, it may invalidate the correlation between the dependent and independent variables.
Explanation:
PLEASE HELP
Describe the 3 ways plant seeds are dispered by other organisms. *
Answer:
Because plants cannot walk around and take their seeds to other places, they have developed other methods to disperse (move) their seeds. The most common methods are wind, water, animals, explosion and fire. Dandelion seeds float away in the wind.
Explanation:
Answer:
Plants cannot walk around and take their seeds to other places, they have developed other methods to disperse (move) their seeds. The most common methods are wind, water, animals, explosion and fire.
What two items are the products of photosynthesis?
Answer:
Summary. The photosynthesis chemical equation states that the reactants (carbon dioxide, water and sunlight), yield two products, glucose and oxygen gas. The single chemical equation represents the overall process of photosynthesis.
what is the correct equation for photosynthesis?
Answer:
6CO2 + 6H20 ⇒ C6H12O6 + 6O2
Explanation:
Carbon Dioxide + Water ⇒ Glucose + Oxygen
Photosynthesis is the process through which plants prepare their own food in the presence of sunlight in the chloroplast of the cell.
What is Photosynthesis?Photosynthesis is the process of transformation of energy from solar energy (radiation) into chemical energy. The chemical energy is present in the form of chemical bonds present in the glucose molecule (carbohydrate).
The process of photosynthesis is commonly written as:
6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂
This means that the reactants in the process are six molecules of carbon dioxide and six water molecules, are converted by the light energy (radiation) captured by chlorophyll into a sugar molecule (carbohydrate) and six oxygen molecules, as the products.
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BRAINLIEST AND 20 POINTS!!! FIRST CORRECT ANSWER
Which of the following describes erosion caused by glaciers?
It forms big ice chunks.
It changes the temperature.
It happens quickly.
It takes a long time.
Answer:
The 4th option.
Explanation:
Erosion from glaciers takes a long time because glaciers move very slowly across the land. For example, The Appalachian Mountains in the U.S. used to be really tall but slowly overtime, glaciers rounded them off.
A plant uses sunlight to make its food. What kind of energy transition is
taking place?
O A. Sound energy to heat energy
B. Mechanical energy to light energy
C. Light energy to chemical energy
D. Chemical energy to heat energy
Answer:
I don´t correctly remeber this part of science, but i am going to take a guess and say D) Chemical energy to heat energy
Explanation:
Answer: I believe it is C. Light energy to chemical energy.
Explanation: I think it is C. because this process is photosynthesis which is the process of taking sunlight (which would be light energy) and making oxygen and glucose (which I think would be chemical energy).
The correct sequence for the general adaptation syndrome is:_________
a) Exhaustion phase, alarm phase and resistance phase
b) Alarm phase, resistance phase and exhaustion phase
c) Resistance phase, exhaustion phase and alarm phase
d) Alarm phase, exhaustion phase and resistance phase
Answer:
The correct sequence for the general adaptation syndrome is: b) Alarm phase, resistance phase and exhaustion phase
Explanation:
The general adaptation syndrome describes what happens to our body when it is under stress.
The first phase is the Alarm phase. In this stage, the body activates the fight or flight response, causing an increase in adrenaline and cortisol, blood pressure, respiratory frequency, amongst other things that prepare us to react in a situation that we perceive as dangerous.
The second phase is the resistance one. During this phase, the body undergoes a different process that adapts it to manage the stress, with an elevated amount of cortisol and blood pressure.
The third phase is the exhaustion phase. If the stress levels continue to be high, the body passes to this stage. The body is exhausted and cannot keep dealing with stress, which causes mental and physical problems such as anxiety, depression, fatigue, stress-related illnesses, among other symptoms.
HELPP ASAPP PLEASE !!!!
Answer:
galaxy x and z
What is the role of energy in living organisms? Is ti a mor or less important role than other characteristics of life?
Answer:
A huge number of chemical reactions take place continuously in a living cell. The whole of all chemical processes, that is, the total turnover of matter and energy is called metabolism.
Explanation:
All organisms need the energy to grow, reproduce, and respond to their surroundings. All these processes are achieved through metabolism that allows the energy available to them.
Which provide evidence for the general theory of relativity? Check all that apply
gravitational lensing
the constancy of the speed of light
the curvature of space-time
changes in Mercury's orbital path
O gravitational redshift
Answer:
Gravitational redshift
Explanation:
Gravitational redshift, changes in a planet's orbital path, gravitational lensing provides concrete evidence for the general theory of relativity. Hope this is helpful and the answer you were looking for!
Answer:
1 4 5
Explanation:
From which vessels does heart get its blood supply?
Answer:
coronary arteries
Explanation:
Two major coronary arteries branch off from the aorta near the point where the aorta and the left ventricle meet. And they create a muscle with blood which is coronary arteries
What is symbiosis meaning?
Answer:
interaction between two different organisms living in close physical association, typically to the advantage of both.
Explanation:
Hope this helps :D
Answer:
It is the interaction between two different organisms that typically has an o advantage to each other.
Explanation:
An example could be the relationship between an anemone (Heteractis magnifica) and a clownfish (Amphiron ocellaris). It's example of two organisms benefiting the other- the anemone provides the clownfish with protection and shelter, while the clownfish provides the anemone nutrients in the form of waste.
Iridium (Ir) is a rare element on Earth, but common in
asteroids
volcanoes
the oceans
icy comets
How do abundant growth and care resources affect ecosystem?
Answer:
over exploitation
Explanation: