In deserts there’s a strong environmental pressure to conserve water. How did cactuses evolve to meet this pressure?

Answers

Answer 1

Answer:

Cacti evolved in the way that they are able to hold watter within themselves and their cells.

Explanation:

Answer 2

Cactuses have evolved in such a way that their roots and leaves hold water as long as possible. This gives the capability of cacti to meet this environmental pressure in order to conserve water.

What are the special adaptations of the cactus?

Under desert climates, cacti have various numerous unique adaptations in order to facilitate their survival in the same habitat. It includes its roots, leaves as well as stems that enable it to thrive in desert environments.

These adaptations include: Leaves are reduced to spines to reduce water loss through transpiration. Wide and deep roots absorb rainwater on the surface and reach the underground deep water.

Therefore, cactuses have evolved in such a way that their roots and leaves hold water as long as possible.

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Related Questions

What is cell membrane made up ?





Answers

The cell membrane is mainly composed of lipids. Moreover, the cell membrane also contains membrane proteins and carbohydrates.

The cell membrane:

The cell membrane is a cellular structure that separates the cell from its surrounding environment.

The cell membrane is mainly composed of lipids, i.e., phospholipids and cholesterol (steroids).

However, the cell membrane also contains membrane proteins (both integral as peripherical proteins) and carbohydrates (i.e., glycoproteins).

In conclusion, the cell membrane is mainly composed of lipids, although this structure also contains proteins and carbohydrates (glycoproteins).

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which codon on the mrna strand codes for the amino acid carried by the aminoacyl-trna represented in the figure?

Answers

Answer:5’UUC-3

Explanation:

What two-word term has been used to describe the annual shopping and sports mayhem in Philadelphia and the time when U.S. retailers typically show a profit?

Answers

The two-word term used to describe the annual shopping and sports is Black Friday.

From the United States (U.S.) financial history, the two-term word black Friday was first used in 1869.

The first annual black Friday occured in Philadelphia in which alot of retailers attracted their key customers and made profits through the discount they placed on their products.

Black Friday was used to describe the financial crisis after the United States's gold market crashed.

Literally, black should depict something negative or loss but on the contrary, the business world uses black to describe profit.

Therefore, the two-word term used to describe the annual shopping and sports is Black Friday.

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4. Using the Celsius scale, at what temperature does water freeze? At what temperature does water boil?

Answers

Answer:

Using celsius water freezes at 0, and water boils at 100.

Explanation: That is the purpose of the celsius scale to measure between those two points.

Sucrose is an organic compound made by plants for quick energy.

What type of organic compound is sucrose?

protein
carbohydrate
lipid
nucleic acid

Answers

Answer:

it's a carbohydrate

Explanation:

Sucrose (which is known as a table sugar) is a very common disaccharide, which is made up of the monomers glucose and fructose.

In the kidneys, the countercurrent mechanism involves the interaction between the flow of filtrate through the nephron loop of the juxtamedullary nephrons (the countercurrent multiplier) and the flow of blood through the limbs of adjacent blood vessels (the countercurrent exchange

a. True
b. False

Answers

For this question, the answer is true.

Can you use cheetahs to represent Photosynthesis or Cellular Respiration?

Answers

Cellular Respiration

15 facts about the nucleus
GIVING BRAINLY!!

Answers

your a complete diputs head are you thats so easy bro

1.Cell Nucleus is considered to be the brain of a cell
2. the cell nucleus is the largest organelle of the cell and holds approximately 2 meters of DNA
3. The nucleus has a double membrane (the nuclear envelope) around it.
4. The nucleus contains chromosomes which are made of DNA and associated proteins called histones.
5. The nucleus contains genes that hold the information needed to make proteins.
6. The nucleus is not always in the center of the cell.
7. The DNA is also used to control gene expression through a process called transcription, where a DNA template is used to produce pre-mRNA.
8. DNA and RNA are found in the nucleus.
9. The nucleus also stores proteins and ribonucleic acid (RNA) in the nucleolus.
10. The starting point of protein synthesis which is called transcription begins in the nucleus.
11. It usually takes up about 10 percent of the cell's volume.
12. Each human cell (nucleus) contains around 6 feet of DNA which is tightly packed, but very organized with proteins.
13. The size of the Cell Nucleus can vary from one organism to another.

I ran out of time but here you go!

WILL GIVE BRAINLIEST IF CORRECT! I NEED HELP

Answers

Unconformities is number 4
principles of originally horizontally is number 3
law of superstition is number 2
principles of cross-cutting relationships is number 1

Scientists put a sample of water into a sealed tank. Water can be a solid, liquid, or gas. At first, the water was a liquid. Then, the scientists transferred energy out of the substance, and the water changed phase. What happened to the movement of the water molecules?

After the phase change, the water molecules moved . . .

Answers

Answer:

slower and started moving in place

Explanation:

at what time should we definitely seek shade to avoid sun exposure? between 6am and 8am between 8am and 10am between 10am and 4pm between 4pm and 10pm


SCIENCE. PLEASE HELP!!!!

Answers

Answer:

Between 10am and 4pm

Explanation:

This is when the sun is at its higest point, allowing it to radiate more UV rays on your skin.

Answer:

during the time btw 10 am to 4 pm because sun is scorching at that time so you should seek shade btw this time

Which of the following best explains the importance of Earth’s crust to living organisms? a. The continental crust allowed the evolution of life on land. B. The crust provides raw materials necessary for life. C. The crust allowed the formation of fossil fuels. D. The rock cycle recycles sedimentary rocks formed from animal shells. Please select the best answer from the choices provided A B C D.

Answers

The statement 'the crust provides raw materials necessary for life' best describes the interaction between Earth's crust and organisms. It is fundamental for the biogeochemical cycles.

Earth's crust consists of a tiny layer on the outside of Earth that accounts for less than one percent (1%) of Earth's volume.

The Earth's crust is essential in biogeochemical cycles that support the continuity of life on the Earth planet.

These biogeochemical cycles include, among others, the carbon cycle, nitrogen cycle, phosphorous cycle, etc.

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Find three consecutive odd numbers whose sum is 117. Find two ways to do this.

Answers

this isn’t biology lol
38, 39, 40
The way I did this is I knew that 50 would be too high so I assumed it was somewhere in the 30’s or 40’s so I just tried the lowest numbers in both of them then the highest in the 30’s

Which of the following is a future consequence of the use of wind energy on the environment?

It generates no greenhouse gases.
Weather affects the quality of wind.
It produces less noise than other energy.
Wind cells are used in isolated locations.

Answers

The future consequence of the use of wind energy on the environment is as follows: weather affects the quality of the wind.

What is wind energy?

Wind energy is a renewable energy source that involves harnessing the wind with windmills or wind turbines to supply mechanical or electrical energy.

Although wind energy release little or no pollution into the environment, it has downsides that can affect its usage.

One future consequence of the use of wind energy on the environment is that weather affects the quality of the wind.

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3 Question
Drag the tiles to the boxes to form correct pairs.
A fossil can reveal many characteristics and properties of the original species. Match the following
characteristics to the fossil of the once-living organism that best demonstrated the characteristic.
s
Tiles
was a predator
crawled and burrowed
walked on two legs
was a stationary organism
Pairs

Answers

First image shows a stationary organism whereas the second image indicates predator.

The first picture represents a leaf structure which is a part of plant and we know that plant is a stationary organism means it can't move from one place to another so that's why it is called a stationary organism.

While on the other hand, the second picture represents predator due to the presence of sharp teeth which helps the predators in catching and tearing of prey so we can conclude that first image shows a stationary organism whereas the second image indicates predator.

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Answer:

1. walked in two legs

2. crawled and burrowed

3. was a stationary organism

4. was a predator

Explanation:

why is there no enzyme to digest vitamins​

Answers

Answer:

Vitamins are used in their original form by the cells. They are either water soluble or fat soluble, hence no enzyme is required to digest vitamins. They are absorbed directly from the digestive tract, transported by blood to the cells, and the cells absorb and use them whenever they need.

The gravitational pull between two objects depends on their mass and distance. What is meant by distance?
1 point)

A. How close the two objects are located, meaning that closer objects have a stronger
gravitational pull than objects farther apart.

B. The height of an object above the ground, meaning that an object will fall faster as the
height above the ground increases.

C. How far apart the two objects are located meaning that objects farther apart have a
stronger gravitational pull than closer objects.

D. The length of the object, meaning if the object is longer it will exhibit more gravitational pull
than if it is short.

Answers

The Answer is B because distance in that question refers to the distance from the object to the center of the earth

true or false? local biogeochemical cycles are isolated within their particular ecosystem and all ions and molecules remain in that ecosystem permanently.

Answers

false! hoping i helped! :) oh and also, HAPPY HOLIDAYSSSS!

Aristo was riding in a car and noticed a pond that was covered in algal blooms due to excess phosphorus in the water. Which of these other features in the landscape could be the reason for the high levels of phosphorus? many cars cow pasture solar panels forest.

Answers

Algae blooms are caused by an oversupply of nutrients like to water bodies, causing eutrophication. In the exposed example, a reason for the high levels of phosphorus is option B. Cow pastures.

-------------------------

Eutrophication is a biological process produced in water by an oversupply of nutrients or organic matter.

The source of these high nutrient levels, especially nitrogen and phosphorus, are anthropogenic activities.

This oversupply favors phytoplankton multiplication, especially cyanobacteria.

Cyanobacteria can grow in seawater, but blooms mainly occur in freshwater where the salinity level is low.

These algae species that affect freshwater bodies are microscopic, photosynthetic organisms.

Blooms of cyanobacteria reflect the sanity state of water and its abiotic characteristics. They cause severe disasters in water biota and affect human health.

This overgrowth leads to an enhance in primary productivity and reduces the pass of radiation to deeper strata. This fact affects biota in deeper zones.

Gradually sedimentation begins, caused by the death of some vegetable organisms that sink in the bottom.

These sediments suffer decomposition in the presence of oxygen.

When oxygen disappears, anaerobic bacteria act and produce fermentation.

Phytoplankton overgrowth on the surface and fermentation process in the bottom, originate toxic compounds that can damage the animals in the water body and humans that get in touch with this water.

Animals die, creating more sediments in the bottom where there are anaerobic conditions.

The lack of oxygen and light continued to increase in decomposition, and fermentation produces a bad smell and toxicity.

Concerning the sources of nutrients that might be causing these events, we can mention, among others, cow pasture.

Cow pasture increases the levels of phosphorous on the ground, which ends in water streams, and from there to ponds or lakes.

-----------------------------------

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Answer: cow pasture

Explanation:

The equator has light closer to 90 degrees, at the poles the angle is lower than 90 degrees. Use this information and refer to the data from Table B to explain why the tropics (near the equator) are hotter than the arctic region (north/south poles). Be sure to include data from Table B in your answer.

Answers

The temperature at tropic region is warmer than the polar temperatures due to angle of the sun.

The tropics which is located near the equator are hotter than the arctic region i.e. north and south poles because the sunlight falls directly on the tropic regions at 90 degrees while on the other hand, the sunlight falls on the poles not directly and form angle lower than 90 degrees.

The amount of solar energy in a given area is greater at the equator and tropic regions than in an equal area at the poles so that's why the temperature at tropic region is warmer than the polar temperatures.

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Which of Earth's spheres are involved in the water cycle?
O A. Atmosphere, hydrosphere, and biosphere only
Imy
O B. Atmosphere and lithosphere only
O C. Atmosphere, lithosphere, and hydrosphere only
O D. Atmosphere, lithosphere, hydrosphere, and biosphere

Answers

Answer:

the answer is D.

Explanation:

all of the spheres interact with each other in order to make the water cycle occur.

The answer is D, atmosphere, lithosphere, hydrosphere and biosphere

(giving brainliest if u help)The following are steps in an investigation into electrically charged objects.

Step #1: Blow up a balloon.
Step #2: Rub the balloon against your hair.
Step #3: Rub a plastic fork against your hair.
Step #4: Bring the two objects together and observe what happens.

Which steps are required to charge the objects?
A: Step 1 and 2
B: step 2 and 3
C: step 3 and 4
D: step 1 and 4

Answers

the answer is step 2 and 3 (B).

Answer:

B, Step 2 and 3.

Explanation:

Once you rub a balloon against your hair and try to slowly remove it, your hair will be pulled towards the balloon like a magnet. This is because the balloon charged your hair and your hair was then able to get attracted to the balloon, the same applies to the fork.

The last woman scientist discovered one gene that is unique in human, and she called it an Eureka moment. How many letters are different in that gene if you compare the chimp version with the human version

Answers

Only one letter is different between the human gene and the chimpanzee gene.

What is a gene?

A gene is a term to refer to the molecular unit of genetic inheritance that is composed of deoxyribonucleic acid, that is,

A sugar group. A phosphate group. A nitrogenous base. Guanine (G) Cytokine (C) Thymine (T) Adenine (A)

Man and chimpanzee share 99% of their genes. However, there are important genetic differences for us to be a different species from chimpanzees. Well, the change of a single nitrogenous base and differentiates the gene of a chimpanzee from the gene of a human.

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PLEASE label this image pleasee

Answers

Answer:

dk

Explanation:

because it's dk u need to add dekk and yes it's uesful

The fern goes through alternation of generations in which there is a Diploid stage and a haploid stage. In the diploid stage under the fern’s leaves there is clusters of sporangium called sorus in which meiosis occurs from the diploids sporocyte creating haploid spores. The haploid spores duplicate through mitosis to turn into a gametophyte. The gametophyte has a upper part which holds the eggs called archegonium and in the lower part where sperm is produced called antheridium.After fertilization occurs the egg duplicates and turns into a zygote and eventually back to a diploid sporophyte firn.

The air we breathe is mostly a mixture of oxygen and nitrogen. How do air molecules change when they reach altitudes above 100 km?



I need to make sure the answer I have is right.

Answers

As you increase in altitude, there are fewer air molecules. Due to the lower amounts of air molecules, the atmospheric pressure decreases causing the air to be harder to breath in.

In this pedigree, 1-2 is
because they are shaded in.

Answers

Answer:

is affected ( has the trait)

Explanation:

SOMEONE PLEASE HELP!!!!!


Five similarities and differences between a prokaryote and a eukaryote cell.

Answers

Answer:

Prokaryotic Cell Eukaryotic cell

Mitochondria absent Mitochondria present

Cytoskeleton absent Cytoskeleton present

Ribosomes smaller Ribosomes larger

Explanation:

two types of cells are found in the organisms: eukaryotic and prokaryotic depending on whether cells contain membrane-bound organelles or not.

Which definition is the best for “semipermeable membrane”?
It is a barrier that prevents materials from moving from one side to the other.
It is a barrier that allows materials to move freely from one side to the other.
It is a barrier with tiny openings that let some, but not all, materials pass through.
It is a barrier that helps materials move from one side to the other.

Answers

Answer:

C

Explanation:

Semi means partly

permeable means allowing liquids or gases to pass through it

Semipermeable means allowing some, but not all, liquids or gases to pass through it.

Answer:

c) It is a barrier with tiny openings that let some, but not all, materials pass through.

Explanation:

The prefix "semi-" means "some; partially". "Permeable" means "allow to pass through". Using your knowledge of the purpose of the membrane and the meaning of the word "semi-permeable", you would use context to come to the conclusion that the correct answer is c) It is a barrier with tiny openings that let some, but not all, materials pass through.

What distinguishes an acute disease from a chronic disease?

What is the difference between them

Answers

Answer:

Acute illnesses generally develop suddenly and last a short time, often only a few days or weeks. Chronic conditions develop slowly and may worsen over an extended period of time—months to years.

Acute diseases refer to the medical condition that occurs suddenly and lasts for a shorter period of time. Chronic diseases develop slowly in our body and may last for a lifetime. Chronic diseases are sometimes fatal.

Explanation:

An acute disease lasts for a very short period of time while a chronic disease lasts for a very long time, even the whole lifetime.Acute diseases do not have much bad effects on our health but chronic diseases have bad effects on our health which will ultimately lead to poor health conditions.A person suffering from acute disease does not have fatigue, loss of weight, etc. While a person suffering from chronic disease has fatigue, weight loss, loss of appetite, etc.Examples of acute diseases are common cold, influenza, etc. Chronic disease examples are diabetes, cancer, etc.

Hope you could understand.

If you have any doubt, feel free to ask.

For each offspring genotype in the Punnett square you just completed, determine the phenotype. In other words, what is the predicted fur color and eye color of the offspring? Using your Punnett square from the last step, fill in the predicted fraction for each phenotype in the data table below.

Black Fur and Black Eyes Black Fur and Red Eyes White Fur and Black Eyes White Fur and Red Eyes
Predicted Fraction
/16
/16
/16
/16

Answers

Assuming diallelic genes, expressing complete dominance and not interacting, the predicted fractions are 4/16 Black Fur, Black Eyes - 4/16 Black Fur, Red Eyes - 4/16 White Fur, Black Eyes - 4/16 White Fur, Red Eyes

Available data:

Two traits are involved in this cross  ⇒  fur color and eye color.

Black fur color is dominant over white fur color

Black eyes is dominant over red eyes

The cross is between a h0m0zyg0us recessive parent with a dihybrid one.

What can we deduct about this information?

Assuming diallelic genes coding for each trait, expressing complete dominance, and no interaction between genes, we can propose the following genotypes and phenotypes.

         Genotype                               Phenotype          

BBEE, BbEE, BBEe, BbEe        Black fur, Black eyes

bbEE, bbEe                              White fur, Black eyes

BBee, Bbee                              Black fur, Red eyes

bbee                                         White fur, Red eyes

How to perform the cross?

Cross: h0m0zyg0us recessive parent with a dihybrid parent

Parental phenotypes)    White fur, Red eyes   x   Black fur, Black eyes

Parentals genotype)    bbee     x     BbEe

Gametes)  be, be, be, be        

                 BE, Be, bE, be

Punnett square)       BE             Be            bE           be

                     be     BbEe        Bbee         bbEe       bbee

                     be     BbEe        Bbee         bbEe       bbee

                     be     BbEe        Bbee         bbEe       bbee

                     be     BbEe        Bbee         bbEe       bbee

F1)

4/16 = 1/4 = 25% of the progeny is expected to be dihybrid, BbEe, expressing black fur and black eyes

4/16 = 1/4 = 25% of the progeny is expected to be heter0zyg0us for fur color and h0m0zyg0us recessive for eye color, expressing black fur and red eyes.

 

4/16 = 1/4 = 25% of the progeny is expected to be heter0zyg0us for eye color and h0m0zyg0us recessive for fur color, expressing white fur and black eyes.

4/16 = 1/4 = 25% of the progeny is expected to be h0m0zyg0us recessive, bbee, expressing white fur and red eyes.

Predicted fraction per phenotype

Black Fur and Black Eyes  ⇒  4/16 BbEeBlack Fur and Red Eyes  ⇒  4/16 BbeeWhite Fur and Black Eyes  ⇒  4/16 bbEeWhite Fur and Red Eyes  ⇒  4/16 bbee

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Answer: look at the picture

Explanation:

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If Alex is 14 years old, and Ben is 17 years old, in how many years will the sum of their ages be 169 years? 1. Determine the domain and range of the function f(x) = x2 + 2. Give your answer in all three notations for continuousfunctions.=pls help!! algebra 1 math take a factor out of the square root: 4450 whats 75 percent of 120 During cellular respiration, cells convert oxygen and glucose into carbon dioxide, water, and energy. How is this process related to that of photosynthesis? A. The products of photosynthesis are the reactants of cellular respiration.B. In photosynthesis, cells use ATP to convert insulin into glucose and carbon dioxide C. In photosynthesis, oxygen is inhaled, and carbon dioxide and water are exhaled. D. Both photosynthesis and cellular respiration occur in a cell's mitochondria. Mr. Jenson's class is observing the growth of one kind of pea plant. The class wants to design an experiment to answer the question, "What amount of water will cause the plants to produce the greatest number of peas?"What could the class do to create the experiment? A. give all the pea plants the same amount of water and count the number of peas that the plants produce B. give all the pea plants different amounts of water and only guess the number of peas that the plants produce C. give all of the pea plants different amounts of water and count the number of peas that the plants produce D. stop watering all of the pea plants and then count the number of peas that the plants produce according to ovid, why did phineus want to kill perseus? Please help meEvaluate the expression when M=2m+29 How does holi bring people of different castes and religions into harmony and fraternity find the slope of the line that passes through the pair of points (3,-5), (-4,1) Ranas themselves were responsible for their downfall . Justify it any body come with me for test a main difference between a scientific theory and a hypothesis is that? 19. An ectotherm is also called a a. thermoregulator. b. thermoconformer. c. homeotherm. d. poikilotherm. Plzzz help meeee plzzzzz plzzzz True or False (See Image)The remainder theorem can be used to check if a binomial is a factor of a larger polynomial. In 2013, a State Library received a three-year grant to add 69,678 books to theircollection. During a used book sale, the library sold 430 books. If the collectionnow is five times more than the original number of books, how many books didthe library hold before it received the grant? find the unknown angle can someone help me pls what is this how do i even find the unknown angle Which of the following is the best definition of vertical angles?Vertical angles are angles formed by two intersecting lines.Vertical angles are formed by intersecting a vertical and horizontal line.Vertical angles are a pair of non-adjacent angles formed by two intersecting lines.Vertical angles are a pair of congruent angles with a vertical line of symmetry. andrew bought a camera on sale at a 20% discount. it was marked down from its regular price of 120$ if there is an 8% sales tax on the sales price, how much did andrew pay for the camera?