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).

Answers

Answer 1
gurl what are you asking

Related Questions

What molecule promotes guanosine monophosphate synthesis to regulate the balance of nucleotide pools?
A) ATP
B) UTP
C) CTP
The structures of hypoxanthine and allopurinol are shown above. It is known that allopurinol is an inhibitor of the enzyme xanthine oxidase. What type of inhibitor is allopurinol likely to be?
A) Uncompetitive
B)Competitive
C)Allosteric

Answers

Answer:

Well the answer is A: ATP

Explanation:

When you hear a piece of music, your brain processes the sound information
so that you are aware of it. Most of this processing occurs in the
- mind,
A. selective attentive
B. unconscious
C. conscious
D. preconscious

Answers

Answer:

I THINK IT IS C OR D I HOPE IT WILL HELP

At the time when we hear the piece of music so here the processing should arise in the unconscious mind. The option b is correct.

What is the unconscious mind?

It is considered as a reservoir of feelings, thoughts, and memories that should be outside of our conscious awareness.

The unconscious comprises the contents that are non-accepetable or unpleasant, like feelings of pain, anxiety.

Hence, we can say that the option b is correct.

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Fog will usually form if the temperature and _______ match.

Answers

Answer:

dew point

Explanation:

i looked it up but i could be wrong

Answer:
dew point

Explaination:

Which two types of stars will enter the supernova phase?

Average and Massive Stars

Average and Supermassive stars

Massive and Supermassive Stars


Neutron and Red Stars

Answers

Answer: Massive and Supermassive stars

Which of the following is true of the water at the bottom of the ocean?
It contains the most salt.
It is particularly rich in nutrients.
It will be the warmest water in the region.
There are very few organisms that can survive there.

Answers

Answer: it is particularly rich in nutrients

Explanation:

Which of the following is an example of osmosis?

Answers

Explanation/answer: Glucose is transported from our blood stream across cell membranes and into the cytoplasm. Sodium is pumped across a cell to increase its concentration on one side of the cell membrane.

Why is mitosis so important? 3 complete sentences

Answers

Answer:

Mitosis is important because it is essential for growth and repair in the body. Mitosis happens when a parent cell divides, creating two identical copies, referred to as daughter cells. During this process, it is essential that the daughter cells are exactly the same with the same copies of DNA.

Explanation:

It refers to the group of ecosystem sharing the same climate

Answers

Answer:

The correct answer is - Biome.

Explanation:

A biome is large area with a particular climate in this region of the earth and typical animals found in the particular area. Biom have different group of ecosystem present in it but live together in a particlular or same climate.

All plants and animals found in every biome has advantage as biome have specific traits like temerature, precipitation, sunlight or humididty and mnymore that help in surviving. For instance, polar bear will live only low humidity and low temperature.

Please give the answer for this!

Answers

for the first picture the stimuluis is light and the respons is phototropism(the plant is oriented towards the source of the light)

for the second picture the stimulus is the signt and smell of the food. the respons is salivary secretion

Answer:

1.

Stimulus: The light

Response: The plant gets light energy required to function

2.

Stimulus: The food in the bowl

Response: The dog digests the food absorbing nutrients needed to continue operating.

Hope this helps, feel free to give brainliest :)

The opening and closing of _____________in your heart create the lub-dub sound and prevent the backflow of blood.

What goes in the blank?

Answers

Answer:

Heart valves or the closure of the mitral and tricuspid atrioventricular (AV) valves at the beginning of ventricular systole and the closure of the aortic valve and pulmonary valve at the end of ventricular systole.

Explanation:

The heart tone “lub,” or S1, is caused by the closure of the mitral and tricuspid atrioventricular (AV) valves at the beginning of ventricular systole.

The heart tone “dub,” or S2 ( a combination of A2 and P2), is caused by the closure of the aortic valve and pulmonary valve at the end of ventricular systole.

Explain how the conversation of wetlands to farmlands has impacted stream and rivers

Answers

Answer:

Wetland reduction has caused a decrease in the absorption zones for excess water. If the excess water cannot be absorbed by the soil, it increases the incidence and magnitude of flooding.

The conversation of wetlands to farmlands has impacted stream and rivers as the Wetland reduction has been caused the decrease in the absorption zones for excess water. If the excess water cannot be absorbed by the soil, it increases the incidence and magnitude of flooding and this can be achieved by sustainability.

What is the process of achieving Sustainability?

Sustainability can be achieved through careful resource management. By managing the resources and making proper use without wasting them ensures sustainability. The concept of sustainability demands careful and responsible people working towards a common goal of resources management.

A union is a term that refers to the association of workers of a company with the aim of defending and promoting their labor interests to the employer. The strike is a protest in which its members refrain from carrying out the activity they normally carry out to the detriment of those to whom they direct their claims.

Therefore, If the excess water cannot be absorbed by the soil, it increases the incidence and magnitude of flooding and this can be achieved by sustainability.

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Megalodon left an awful lot of teeth behind, but don't worry. It is likely that it had plenty of extras. Like modern sharks, Megalodon had several rows of teeth. Scientists believe that Megalodon had six rows of 7-inch-wide, razor-sharp teeth, top and bottom, for a total of 276 teeth in its giant jaws! It's no wonder, then, that this ancient shark left so many of them behind. Without this trail of teeth, we would not know that these enormous creatures swam the ancient oceans as a top predator.Select two sentences from below that best show that the author wants the reader to be able to relate Megalodon's size to everyday life




A.What would you expect a creature whose name means “big tooth” to look like?
B.The Megalodon shark deserves this title.
C.As the Greek roots mega- (“big”) and don (“tooth”) suggest, this awesome prehistoric creature certainly did have huge teeth—as well as a massive and powerful body.
D.Scientists estimate that these gigantic sharks stretched as long as 60 feet.
E.If you're having trouble imagining that, just think of a school bus, typically about 45 feet in length.
F.Now, imagine a shark just a bit larger than that school bus—with 7-inch teeth.
G.Yes, this ancient fish certainly earned the prefix mega!
H.Since these sharks are extinct, how do we know exactly how huge and powerful the Megalodon shark was?

Answers

The answer is D and F. I did the test

The direction of blood travel can be determined by:
O1) the size of the blood drop.
O2) the shape of the blood drop.
O3) the distance it has to travel.
O4) AIl of the answers are correct.

Answers

I think the answer is 04

The direction of blood travel can be determined by the shape of the blood drop. Therefore, option B is correct.

What is blood pattern analysis?

To ascertain what actions could have produced the bloodstains and/or patterns shown, bloodstain pattern analysis studies are carried out.

Bloodstains can be divided into three categories: projected or impact stains, transfer stains, and passive stains. Passive stains, which can take the form of droplets, flows, and pools, are frequently caused by the weight of an injured body.

In order to determine if it is human blood and then create a DNA profile, analysts or investigators frequently soak up pooled blood or swab small quantities of dried blood. When there are numerous victims, this becomes extremely important. Thus, option B is correct.

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Which two substances are among the four major types of organic compounds made by living things?
A. Water
B. Nucleic acids
C. Lipids
D. Carbon dioxide​

Answers

The two substances that are among the four major types of organic compounds made by living things are nucleic acids and lipids.

What are organic substances?

Organic substances are substances that are from living sources.

There are four major organic substances produced in nature and are as follows:

CarbohydratesLipidsNucleic acidsProteins

Therefore, the two substances that are among the four major types of organic compounds made by living things are nucleic acids and lipids.

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Answer:

Lipids and Nucleic acids

Explanation:

I took the test


How has the size of U.S. farms changed since World War II?

Answers

Answer:

Farmers Produce More Food for War in World War II. As the war approached, it got worse for farmers before it got better. Farming exports fell 30 to 40 percent below the average of the ten depression years that preceded the war. Grain exports, for example, fell 30 percent in one year between September 1939 and 1940.

Explanation:

What are the properties of water that you can observe when transpiration takes place?

Answers

Answer:

When water evaporates through the leaves, a pull is created through the xylem, and water moves back to the leaves. This is known as the transpiration pull.

In a plant, leaf color and leaf shape are controlled by two linked genes. Leaves of the wild plant are red (R) while a recessive mutation in this gene causes leaves to be white (r). Wild-type leaves are pointed (P), while a recessive mutation in this gene causes them to be smooth (p). For a parent plant that is heterozygous for both traits with both recessive mutations on one chromosome, what genotypes will its gametes be

Answers

Answer:

The genotypes of the gametes are:

RP (parental), rp (parental), Rp (recombinant), rP (recombinant)

Explanation:

Available data:    

Leaf color and leaf shape are controlled by two linked genes.Leaves of the wild plant are red (R) while a recessive mutation in this gene causes leaves to be white (r).Wild-type leaves are pointed (P), while a recessive mutation in this gene causes them to be smooth (p). Parent plant heterozygous for both traits with both recessive mutations on one chromosome

Parent) RP/rp ---> RP are in one chromosome, while rp in another  

                             chromosome

Gametes) RP (parental)

                rp (parental)

                Rp (recombinant)

                rP (recombinant)

write about cells in one paragraph​

Answers

Answer:

Cell, in biology, the basic membrane-bound unit that contains the fundamental molecules of life and of which all living things are composed. A single cell is often a complete organism in itself, such as a bacterium or yeast. Other cells acquire specialized functions as they mature

Explanation:

A team from New York Presbyterian hospital is conducting a study about a recent increase in cases involving both excess sweating and kidney stones. What would the team need before it draws a conclusion about the cases?

A. medications that are specifically designed to treat the sickness

B. machines that are built to process blood and reduce symptoms until patients are healthy again

C. data that profile the various patients who report these symptoms

D. proof that the excess sweating is related to the excessive kidney stones

Answers

Answer:

C the data the profile symptoms

Explanation:

The team that required prior to drawing the conclusion related to the case should be option c. where the profile shows the symptoms of various patients.

Reasons for excess sweating and kidney stones:

The main reason of excessive sweating is the dehydration that means we are not drinking sufficient water due to which the risk of the kidney stones should be increased.

If the protein diet is high, or there is high salt intake, or high sugar intake due to this also the stones chances are high.

Therefore, the option c is correct.

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Which of the following is an example of a plant responding to the external stimulus of gravity?

A.) A seedling growing toward a sunny window
B.) A plant root growing down into the soil
C.) Flowers producing nectar to attract bees
D.) a potted plant wilting when it dries out

Answers

Answer:

b

Explanation:

bcs the root grows towards the gravity

Answer:

D

Explanation:

Fishes excretory product?

Answers

The excreatory product of fishes is ammonia.

food is important for growing amd repairing in the body. ny which process is food broken down into nutrient molecules​

Answers

Answer:

Digestion proper, which is the mechanical and chemical breakdown of food into particles/molecules small enough to pass into the blood. Absorption is the passage of food monomers into the blood stream. Assimilation is the passage of the food molecules into body cells.

An embryo forms inside a fertilized female egg of invertebrates. true or false.

Answers

Answer: If fertilization of the egg occurs within the female body, the fertilized egg is then laid outside the female body. If the fertilization took place outside the body, the fertilized egg remains outside the female's body. Now an embryo begins to form within the fertilized egg.

Explanation:

Answer: If fertilization of the egg occurs within the female body, the fertilized egg is then laid outside the female body. If the fertilization took place outside the body, the fertilized egg remains outside the female's body. Now an embryo begins to form within the fertilized egg.

Explanation:

Can u help me please the graph is on the other question that I had just recently asked please and thanks.

Answers

Answer:

16. They would compare it the other strand of DNA from other organisms and try to see which one is most similar to organism x

for 17 and 18 could u post the graphs

which is correct and explain .plz help.image is attached​

Answers

Electric is the answer to your question

Which two are locations where protozoa are most likely found?

decaying matter
polluted air
dirty water
skin contact
unwashed clothes

Answers

Answer:

the two locations that are most likely found is dirty water and polluted air

What process lead to biological nitrogen fixation?

Answers

The Rhizobium or Bradyrhizobium bacteria colonize the host plant's root system and cause the roots to form nodules to house the bacteria. The bacteria then begin to fix the nitrogen required by the plant.

Transformation is the process by which a bacterium
O A. lies dormant in a cell for many weeks
B. adds DNA taken in from its environment
C. switches to the bacterial lytic cycle
D. injects its DNA into another bacterium
SUBMI

Answers

Answer:

adds DNA taken in form its environment.

Answer:

adds DNA taken in from its environment

How are the graphs of a body chemical controlled by negative feedback and a chemical controlled by positive feedback similar and how are they different

Answers

Answer:

two examples of positive feedback loops that are normal but are activated only when needed. Childbirth at full term is an example of a situation in which the maintenance of the existing body state is not desired.

Explanation:

An animal cell lacking oligosaccharides on the external surface of its plasma membrane would likely be impaired in which function ?​

Answers

Answer:

This question lacks options, the options are:

A) transporting ions against an electrochemical gradient

B) cell-cell recognition

C) maintaining fluidity of the phospholipid bilayer

D) attaching to the cytoskeleton

E) establishing the diffusion barrier to charged molecules

The answer is B

Explanation:

Generally, oligosaccharides are short chains of polysaccharides/carbohydrates. They make up the structure of membranes including the plasma membrane. Oligosaccharides attached to the protein content of the cell membrane to form a substance called GLYCOPROTEIN. The attached oligosaccharides functions in the ability for a cell to recognize another cell.

According to this question, if an animal whose cell is lacking oligosaccharides on the external surface of its plasma membrane, the most likely impairment would be that of CELL-CELL recognition.

Oligosaccharides are a type of carbohydrates that contain the combination of a few monosaccharides. The are also found as part of the components of the membrane.

If an animal cell lacks this type of carbohydrates (oligosaccharides), the function impaired would be the cell-cell communication function.

Oligosaccharides performs various functions as part of the component of the plasma membrane. It functions in cell to cell recognition and binding and communication. They usually contain 3-10 sugar units (monosaccharides).

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Which equations are correct?Select each correct answer.[tex]4c^4(3c^2)=12c^8[/tex][tex]3b^3(2b^4)=6b^12[/tex][tex]5y^4(2y^5)=10y^9[/tex][tex]5x^3(6x^4)=30x^7[/tex] 3. What mass of water vapor condenses if 435 kJ of heat are released in the process? a a 10.79 b 982 g C 1.30 x 10 g d 1939 bob is designing a playground in an open field that gets direct sunlight and wants to include a slide for the kids to enjoy which material would be least suitable to use What is the value of |7| + |-3| Simplify 81 to the negative 3 fourths power. 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Her short stature was probably influenced by the lack of a growth hormone produced by the Budgeting, ethics, pharmaceutical company. Chris Jackson was recently promoted to Controller of Research and Development for BrisC or, a Fortune 500 pharmaceutical company that manufactures prescription drugs and nutritional supplements. The companys total R&amp ; D cost for 2017 was expected (budgeted) to be $5 billion. During the companys midyear budget review, Chris realized that current R&amp ; D expenditures were already at $3.5 billion, nearly 40% above the midyear target. At this current rate of expenditure, the R&amp ; D division was on track to exceed its total year-end budget by $2 billion!In a meeting with CFO Ronald Meece later that day, Jackson delivered the bad news. Meece was both shocked and outraged that the R&D spending had gotten out of control. Meece wasnt any more understanding when Jackson revealed that the excess cost was entirely related to research and development of a new drug, Vyacon, which was expected to go to market next year. The new drug would result in large profits for BrisCor, if the product could be approved by year-end. Meece had already announced his expectations of third-quarter earnings to Wall Street analysts. If the R&D expenditures werent reduced by the end of the third quarter, Meece was certain that the targets he had announced publicly would be missed and the companys stock price would tumble. Meece instructed Jackson to make up the budget shortfall by the end of the third quarter using "whatever means necessary." Jackson was new to the controllers position and wanted to make sure that Meeces orders were followed. Jackson came up with the following ideas for making the third-quarter budgeted targets:1. Stop all research and development efforts on the drug Vyacon until after year-end. This change would delay the drug going to market by at least 6 months. It is possible that in the meantime a BrisCor competitor could make it to market with a similar drug.2. Sell off rights to the drug Martek. The company had not planned on doing this because, under current market conditions, it would get less than fair value. It would, however, result in a one-time gain that could offset the budget shortfall. Of course, all future profits from Martek would be lost. Capitalize some of the companys R&D expenditures, reducing R&D expense on the income statement. This transaction would not be in accordance with GAAP, but Jackson thought it was justifiable because the Vyacon drug was going to market early next year. Jackson would argue that capitalizing R&D costs this year and expensing them next year would better match revenues and expenses.3. Referring to the "Standards of Ethical Behavior for Practitioners of Management Accounting and Financial Management,"4. Which of the preceding items are acceptable to use? Which are unacceptable? What would you recommend Jackson do? Simon is selling candy bars for his class fundraiser. In each box of 56 candy bars, 18 arepeanut, and the rest are dark chocolate. Each dark chocolate candy bar costs $2.25.If Simon raises a total of $117, selling a whole box, how much does each peanut candy barcost?O $4.00O $4.25$2.00$1.75Nort Write the equation in point-slope form of the line that contains the points (3,-5) and (5,- 1) Read, look at the image, and choose the correct option.En la escuela me gusta estudiar ________.A. el escritorioB. la pizarraC. la historiaD. el horario A CD and a DVD are both secondary storage devices, explain to a friend the difference between both On a piece of paper, graph y= -2x - 3. Then determine which answermatches the graph you drew.