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

Lionfish are native to the tropical waters of the Indo-Pacific. What conclusions can be made about the impact of climate change on the range of lionfish and, therefore, on biodiversity?

Answers

Answer:

The correct answer is - Climate change has restricted the habitat of lionfish. It has become an endangered species, reducing biodiversity.

Explanation:

As we know it is native to the tropical waters of the Indo-Pacific region. The change in the climate will increase the temperature of the water and this will lead to the restriction of habitat which lead to the reduction in the population of the fishes. As they live in the tropical climate they are habitual of warmer water and can not survive the climate change.

Diversity among members of a species is important because diversity

a
increases the chances of survival under changing conditions.
b
ensures high levels of competition.
c
increases the available ecosystem resources.
d
ensures the variety of reproductive methods for a species.

Answers

Diversity among members of a species is important because diversity increases the chances of survival under changing conditions.

If a disease spreads throughout a species, the species with genetic diversity will survive. If the species does not have genetic diversity, they will be wiped out by the disease.

A because the more genetic diversity a species had, the more likely they are to have characteristics that are needed to survive. Plz vote brainliest

At the time this article was written (2011) how many and what types of genomes have been sequenced? Give a general summary.
Here's the article link:
https://www.genome.gov/about-genomics/fact-sheets/DNA-Sequencing-Fact-Sheet

Answers

Answer:

30 cancer types, heart disease and diabetes, and in inherited diseases that cause physical malformations, developmental delay and metabolic diseases

Explanation:

1. The line "... form a more perfect
Union" can be seen as a reference
to what document?
O Bill of Rights
O Ten Commandments
0 Article of Confederation
O Declaration of Independence

Answers

The bill of right if am wrong I am so so sorry.

Answer:article of confederation

Explanation:

Because I’m smart

Use the drop-down menus to complete each statement about Steven Businger’s work with volcanoes in Hawaii.

Volcanoes release a hazy smoke called
.

Steven Businger helped develop a
that predicts how this smoke spreads.

To model the smoke conditions, scientists measure the amount of
gas a volcano is spewing.

Answers

1. vog 2.computer model 3.sulfur dioxide

Answer: 2 2 3

B B C

vog, computer model, sulfur dioxide

Explanation:

someone's sending a pipe bomb to my house

The graph models the linear relationship between the water level of the river in feet and number of days the water level measured. Which function can be used to find y, the water level of the river after x days

Answers

Answer:

option 4, y=1/4x+16

Explanation:

to solve this you must find the slope and the y intercept.

slope is rise/run, and equal to 2/8 or 1/4

then, the find the y intercept, find where the line crosses the y axis. Here it is 16.

finally you plug these answers into the slope intercept form, y=mx+b. In this form, m= slope, x=days, and b= y intercept.

after you plug in your answers you are left with y=1/4x+16.

_____ cannot be grown in a lab culture unless living cells are present.
A. Fungi
B. Plants
C. Viruses
D. Bacteria

Answers

Answer:

B. Viruses

Explanation:

Viruses are not made out of cells, they can't keep themselves in a stable state, they don't grow, and they can't make their own energy. Even though they definitely replicate and adapt to their environment, viruses are more like androids than real living organisms.

The answer is C. a.k.a Viruses
I have taken something similar to this

Pepsin is an enzyme produced in the stomach. Pepsin has an optimum pH that is very acidic, between a pH of 1.0 and 2.0. In an
experiment involving the enzyme pepsin, the pH is raised from 2 to 11. What will be the MOST LIKELY effect of this on the reaction?

Answers

Explanation:

the pepsin enzyme will not be able to work in a basic medium when ph raised from 2 to 11 it's efficiency will be affected and will not be in a condition of digesting protein .

plz mark my answer as brainlist plzzzz.

hope this will be helpful to you .

When the pH is raised from 2 to 11 the most likely effect on the reaction is ;  

The rate of reaction will decrease/delayed

Given that Pepsin enzyme has an optimum pH of 1.0 to 2.0, it will perform efficiently as a catalyst in an experiment whose pH levels fall within the range of the optimum pH of Pepsin.

Pepsin enzyme accelerates the digestion of proteins therefore when the pH levels are raised above 2.0 the efficiency of Pepsin enzyme will be negatively affected and the digestion of protein will require a higher activation energy.

Hence we can conclude that When the pH is raised from 2 to 11 the most likely effect on the reaction is The rate of reaction will decrease/delayed.

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what happens during frameshift mutation?

pls answer this test is due tomorrow!

Answers

Offensive mutation is a genetic mutation called by a deletion or insertion in a DNA sequence that shift the way to sequence is read. Therefore frameshift mutation results in abnormal proteins products with an incorrect amino acid sequence that can be either longer or shorter than the normal protein

Humans and other animals regulate cell growth and cell division. In humans which of these types of cells generally do NOT divide after they haVE DEVELOPED

Answers

Answer:

skin cells and muscles divide

Explanation: common sense cse we grow

Which is a heterotrophic protist?

A.
euglena, because it has chloroplasts

B.
volvox, because it has an eyespot

C.
volvox, because it has cilia

D.
amoeba, because it engulfs food

Answers

D I’m not sure though
I’m pretty sure it’s D

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

Answers

The answer would be: GUC AUC GCU

How did the temperature relate to the “recommended temperature limit” (solid horizontal red line)?

Will give extra points for right answer

Answers

Answer:

The “recommended temperature limit” indicates limit of the temperature that is good for our world.

Explanation:

The temperature related to the “recommended temperature limit” means that in the graph there is a limit of temperature for our world's environment. if the temperature is between this limit, there is less or no adverse effect on our environment while on the hand, if the temperature exceeds from this limit, then it adversely affected our world because the concentration of carbondioxide gas in the atmosphere increases due to this increase temperature.

Which gas in Earth's atmosphere helps living things make proteing?
O oxygen
O nitrogen
water vapor
O carbonoxide

Answers

The answer is carbon oxide

Please help me I really need help I am having a hard time with this question.

Answers

Answer:

I would prefer to have city water because you don't have to worry about it getting polluted unlike well water. The city water is maintained by the city while with the well water, you maintain it yourself. Even though it can be pricey, most people live in the city anyway, so there is easier access to it.

Explanation:

Answer:

Well Water

Explanation:

I would prefer well water, because city water had a lot of chemicals, and city water filters out minerals that are good for the body. Also, well water tastes ten times fresher than city water. Also, well water is easy to obtain if you already have a well, all you have to do is wither pump it up, or use a basket to scoop some out.

Fungi differ from plants in that they do not reproduce by seeds and lack ...
A) chitin
B) hyphae
C) cell walls
D) chlorophyll

Answers

Answer:

C) Cell walls

Explanation:

fungi differ from plants

How many atoms are in this picture?
Na3C6H507

Answers

Answer:

Explanation:

Trisodium citrate has the chemical formula of Na3C6H5O7. It is sometimes referred to simply as "sodium citrate", though sodium citrate can refer to any of the three sodium salts of citric acid. It possesses a saline, mildly tart flavor. It is mildly basic and can be used along with citric acid to make biologically compatible buffers

Sodium citrate is chiefly used as a food additive, usually for flavor or as a preservative. Its E number is E331. Sodium citrate is employed as a flavoring agent in certain varieties of club soda. It is common as an ingredient in bratwurst, and is also used in commercial ready-to-drink beverages and drink mixes, contributing a tart flavor. It is found in gelatin mix[clarification needed], ice cream, yogurt, jams, sweets, milk powder, processed cheeses, carbonated beverages, and wine[citation needed], amongst others.

I need help on this ASAP!! Cellular respiration and photosynthesis

Answers

Answer:

1 and 3

Explanation:

Concerns about soil management are not the same in all climates. Suppose you own a farm in the state of Washington, where there is a lot of rain throughout the year. Which two issues would be of major concern in managing the soil on your farm?

Answers

Answer:

Soil Erosion

With so much rain coming all year, soil erosion will definitely be a problem if not handled. The splashing of the water on the soil and the subsequent runoff will increase soil erosion. Your farm will lose soil if this is not stemmed and losing soil can lead to a number of negative consequences.

Loss of Nutrients.

One such effect of soil erosion which will be another major concern is the loss of nutrients. This happens when the structure of the soil is broken down by the erosion and the various nutrients in the soil will be carried off as the rain moves away and lost to your farm.

Why is a feather non living? Give detailed explanation. Thanks

Answers

Answer:

feathers are dead tissues. They are only alive while developing as they have a blood supply. Feathers are produced by living cells located in small pit-like follicles in a bird's epidermis, its outer skin layer. The feather is enlarged by the keratin that is protruding straight out from the skin follicle. In order for something to be classified as anything that was never alive

Explanation:

feathers are non-living because theyre dead tissues. theyre produced by living cells in a bird epidermis and as it reaches full size, the blood supply is cut off and the feather is fully functional but non-living

Should water (H2O) be included in the model as a reactant or product? If so, how should it be included?


Yes, as reactant A.
Yes, as reactant A.

Yes, as product B.
Yes, as product B.

Yes, as reactant C.
Yes, as reactant C.

No, it should not be Included.

Answers

Answer: A.) Yes, as reactant A.

Explanation: I hope this helps !!


15. What would happen if the genes involved in differentiation were
removed from a newly fertilized frog egg?
(A) The embryo would become a tadpole but not an adult.
(B) The embryo would develop only one type of cell.
(C) The adux frog would have cells capable of becoming any other type of cell.
O (D) The adult cells would do every job required by the organism.

Answers

The answer is A I think

Which of the following is composed of more than two hundred billion stars, including the sun? (1 point)
A. Earth
B. Mars
C. Milky Way
D. Moon

Answers

milky way i’m pretty sure

Answer:

c

Explanation:

milky way


Oxygen is produced at what point during photosynthesis?
a. when ATP is converted into ADP
b. when CO2 is fixed
c. when water is split
d. when 3-PGA is converted into G3P

Answers

c when water is split

How does matter change from one state to another?

Answers

Matter changes state when energy is added or taken away. When matter is heated enough, the molecules move faster and with greater energy. ... If enough heat is added, a solid can become liquid and a liquid can become gas.

Describe the relationship between a tree and a cow. (Use terms like oxygen, carbon dioxide, photosynthesis, and cellular respiration)

Answers

Answer:

Without the tree the cow couldn't live.

Explanation

The cow breathes in oxygen and breathes out carbon dioxide. The tree uses cellular respiration and photosynthesis in order to take carbon dioxide (which the cow produces) and make it into oxygen (which the cow needs to breaths).

How many possible versions of each gene are there?
1
2
3
4

Answers

The answer is 2 copies

Select the correct image. Which cell is the most specialized?

Answers

Answer:

no pics

Explanation:

Answer:

Where is the image?

Explanation:

what organization has classified countries as developing or developed?

Answers

The United Nations..

Write a short note on oxygen gas

Answers

Answer:

alr

Explanation:

Oxygen is a colourless, odourless, tasteless gas essential to living organisms, being taken up by animals, which convert it to carbon dioxide; plants, in turn, utilize carbon dioxide as a source of carbon and return the oxygen to the atmosphere

Hoped it helped^^

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