22. Why do you think the sea urchin was chosen to test the effect of changes in pH?

Answers

Answer 1

Answer:

as it settles deeper underwater ph tends to be higher and a sea urchin tends to be more resilient to change

Answer 2

Acidic seawater, at current pH levels found in the world's oceans, can have a negative impact on sea urchin larval development so it is taken to test the effect of changes in pH.

What is sea urchin?

Sea urchins are spiny, globular echinoderms of the Echinoidea class. The urchins were able to compensate for internal pH in modest acidification (pH 7.8) and not in higher acidification (pH 7.6).

The pH of coelomic fluid was lower at higher temperatures.

Thus, due to this, the sea urchin was chosen to test the effect of changes in pH.

For more details regarding sea urchin, visit:

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Related Questions

Label the steps of transcription in order, beginning with step one. Answer choices for all three is: step one, two and three


Free RNA nucleotides pair with the complementary DNA nucleotides on one strand of DNA.



The mRNA molecule breaks away as the DNA strands rejoin.



RNA polymerase unzips the DNA molecule.

Answers

Answer:

Its below in the explanation

Explanation:

1.RNA polymerase unzips the DNA molecule.

2.Free RNA nucleotides pair with the complementary DNA nucleotides on one strand of DNA.

3.The mRNA molecule breaks away as the DNA strands rejoin.

Answer:

Here's to make it easier for you guys:

Explanation:

What is the MAIN purpose of the Clean Water Act (CWA)?

Answers

The Clean Water Act (CWA) establishes the basic structure for regulating discharges of pollutants into the waters of the United States and regulating quality standards for surface waters. The basis of the CWA was enacted in 1948 and was called the Federal Water Pollution Control Act, but the Act was significantly reorganized and expanded in 1972. "Clean Water Act" became the Act's common name with amendments in 1972.

Negative feedback: If blood pressure is high, the blood vessels should
A. dilate (open up more)
B. constrict (get tighter)​

Answers

Cv henebbebdbrbrjdjrjjrjdjjrndjdjrjr
The answer is B constrict (get tighter)

Which is an example of carbon accumulating in the geosphere?

Select one:


Formation of fossil fuels from remains of dead organisms.


Breaking down the body of a dead organism and producing carbon dioxide gas.


Formation of glucose in plants through photosynthesis.


Breaking down glucose in cells through cellular respiration.


HELP NEEDED!! :(

Answers

Answer:

your answer is a

Explanation:

Carbon enters the geosphere through the biosphere when dead organic matter (such as peat or marine algae) becomes incorporated into fossil fuels like coal and organic-matter-rich oil and gas source rocks, and when shells of calcium carbonate become limestone through the process of sedimentation briefly described above. formation of fossil fuels form remains of dead organisms .

Which of the following is NOT a category that is used to describe soil?


A particle size

B absorbency

C density

D texture

Answers

it would be density.
You’re answer would be “c”

A difference between DNA and RNA is that:

1.DNA has different bases than RNA


2.DNA is in the nucleus and RNA is never in the nucleus

3.DNA is a single strand and RNA is a double strand

4. DNA makes the proteins and RNA is the instructions

Answers

I believe the correct answer is A) DNA has different bases than RNA.

DNA consists of the bases guanine, cytosine, adenine, and thymine. RNA consists of the bases guanine, cytosine, adenine, and uracil.

Explain what asexual reproduction is, using a spider plant as an example.

Answers

Answer:

Asexual reproduction is a type of reproduction that doesn’t involve gametes fusing or the change in the number of chromosomes. A spider plant is the perfect example of asexual reproduction, but when it comes to plants like that, it’s referred to a type of asexual reproduction called vegetative propagation.

Answer:

the person is correct who answer that question

A company manufactures a chemical which acts as a strong chemical solvent. The chemical has a negative impact on the environment and human health when non properly disposed of. In order to be in compliance with the cradle to grave' tracking expectations of the federal government, the company must most clearly understand and abide by which law to track the manufacture and disposal of this chemical? A) Clean Air Act B) Clean Water Act Safe Drinking Water Act D) Resource Conservation and Recovery Act​

Answers

Answer:

D) Resource Conservation and Recovery Act​

Explanation:

The Resource Conservation and Recovery Act​ of 1976  was passed to ensure that the processes involved from the generation to the disposal of hazardous wastes are properly managed and meet up to health and environmental standards. The cradle represents the generation of the wastes while the grave represents the disposal of the wastes.

The company generating the hazardous waste is also responsible for other processes such as the transportation, treatment and storage of the waste.

2
It's July, mid-day, record high temperatures, and you're outside playing
basketball with friends. Provide two examples that tell me how your body
is trying to maintain Homeostasis during this event.
Your answer

Answers

Sweating (to try to remain cool) and increased heart rate (to help deliver oxygen to muscles faster)

(I will award Brainliest)
Question: Ignoring the human actions of auto and factory mission what generalization can you make about the balance of carbon dioxide and water to a real long period of time?
(Zoom into the photo of necessary)

Answers

Answer:

yes we can

Explanation:

Plants and Animals maintain a balance of CO2. Plants take in CO2 by photosynthesis and animals release CO2 by respiration.

Rock layers showing ripple marks cross-bedding and fossil shells indicate that these layers were formed

a.) From solidification of molten material.
b.) From deposits left by a continental ice sheet.
c.) By high temperature and pressure
d.) By deposition of sediments in a shallow area

Answers

Answer:

d) By deposition of sediments in a shallow area

Explanation:

Deposition is the deposition of wind, water or ice sediments. The sediment may be shipped in the form of steaks, sand & mud or water-dissolved salts.

Sediment accumulation can be seen everywhere in the water chain, from ponds, reservoirs, deltas and floodplains to high mountain rivers.

What happens to light energy when it is absorbed by a leaf?

Answers

Explanation:

In photosynthesis, chlorophyll absorbs energy to transform carbon dioxide and water into carbohydrates and oxygen. This is the process that converts solar energy to a form that can be utilized by plants, and by the animals that eat them, to form the foundation of the food chain.

Hope it will help :)

neurons are activated by which of the following?

Answers

Answer:

Myelin sheaths protect, electrically insulate fibers and increase the speed of transmission of nerve impulses. What structural and functional type of neuron is activated first when you burn your finger? Unipolar (psuedounipolar) neurons that are sensory (afferent) neurons.

Answer:

A neuron is activated by other neurons to which it is connected. In turn, its own activation stimulates other connected neurons to activation

Explanation:

All of the following steps are part of both photosynthesis and cellular respiration except
О
A ATP production.
O
B. electron transport
C. glycolysis.
D. formation of H+ gradient

Answers

Answer:

C. glycolysis.

Explanation:

Hope this will help

PLS HELP ME WILL MARK U BRAINLIEST

Answers

Answer: B. Comparative embryology

Explanation: Good luck! :D

DNA is a nucleic acid polymer. What are the monomers that build this polymer?

Answers

i’m pretty sure the answer is nucleotides

Lipids may contain ____ and small amounts of phosphorus and nitrogen

Answers

Answer:

carbon,hydrogen and oxygen

You accidentally cut yourself working on an engineering project, and soon the cut begins to heal.
Asexual reproduction
Sexual reproduction

Answers

Asexual Reproduction

Scientists have discovered organisms that thrive in hot water that is 90°C (194°F) and do not need sunlight or oxygen to live. Into which kingdom would the scientists classify these organisms?

Archaebacteria
Fungi
Plantae
Animalia

Answers

Explanation:

your answer is Archaebacteria

Need help! Would it be asexual or sexual

Answers

Answer: asexual

Explanation:

Imagine there was no tilt to the earths axis and earths orbit was circular

Answers

Answer:

If the Earth was not tilted on its axis, there would be no seasons. And humanity would suffer.

Explanation:

When a Mars-size object collided with Earth 4.5 billion years ago, it knocked off a chunk that would become the moon. It also tilted Earth sideways a bit, so that our planet now orbits the sun on a slant.

Hope this helps!

Brain-List?

write a characteristics of a gay person​

Answers

Answer:

There aren't specific characteristics that make a person gay or not because everyone is different.

Answer:

A gay person doesn't have any specific "characteristics."

Explanation:

It's an umbrella term; there is a very diverse community that uses that term.

What group of organisms is found at the base of every energy
pyramid?

Answers

Answer:

Plants or other photosynthetic organisms (autotrophs) are found on the first trophic level, at the bottom of the pyramid. The next level will be the herbivores, and then the carnivores that eat the herbivores. The energy pyramid (Figure below) shows four levels of a food chain, from producers to carnivores.

Explanation:

I hope I hope

iwieodkdnejje kei did

What process is being shown in the image below?

Answers

I think it’s DNA replication if i’m not mistaken

10. If you have ever noticed a sharp odor in the air after a thunderstorm
you might be smelling ozone. Ozone can be formed from oxygen gas
when lightning passes through the air. Which statement is true about
ozone?

Answers

Answer:

Ozone high in the atmosphere is a pollutant, but near Earth's surface, it provides protection from harmful rays.

Explanation:

I had this test last week so here you go, let me know if it helped!

Material produced from living or recently living plants or animals and their metabolic byproduct is?
A) charcoal
B) biofuel
C) biomass
D) MSW​

Answers

Answer:

C) biomass

Explanation:

Biomass is sustainable, and is created from creatures such as plants and animals that come from live life. Plants, wood and waste are the most common biomass materials for electricity.

They are known as feedstocks for biomass. Biomass power also can be an electricity source that is not green. Bioenergy is biomass energy or biofuel energy.

Which illustration depicts homologous chromosomes?
Will give brainliest.

Answers

the purple one that looks like an x

Which statement below best describes the role of DNA?
A. It serves as the memory molecule in brain cells
B. It's the main supplier of energy for cells
C. It is used to store energy in the body
D. It carries the information for building proteins

Answers

Answer:

D , option is correct answer hope it helps

Explanation:

d is the correct answer, hope this helps you

body cells are identical to one another . How do these ces reproduce?
A. through garmete formation
B. through genetic information
C.through mitosis
D.through meiosis

Answers

Answer:

I think answer is C.

Explanation:

I hope it's helpful!

Which amino acid sequences can be coded from the DNA sequence CAG TAG CGA?

Answers

The answer would be: GUC AUC GCU

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