1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Bad White [126]
3 years ago
11

Identify one marine species with an outer layer which is similar to the chamois cloth, and one with an outer layer which is simi

lar to the feathers.
Biology
2 answers:
Nezavi [6.7K]3 years ago
7 0
Echinoderms, they are among the most common invertebrate animals in the marine environment of virtually any part of the world, among them we can find species such as sea cucumber , salmon and cod fish, they have chamois cloth like outer layer, then we have the Crinoids, another example of marine species with feather, popularly they are called sea lilies and feathery stars, they have a solid calcite skeleton; they were so abundant in the paleozoic seas that their remains formed large limestone thicknesses.
kondor19780726 [428]3 years ago
4 0
<h2>One Marine Species </h2>

Echinoderms which are among the very simple invertebrate animals in the aquatic ecosystem of essentially any part of the world and also among them we can search species such as sea cucumber, salmon and codfish, they have a chamois cloth-like outer layer, then we have the Crinoids.

There is another example of aquatic species with a feather, regularly they are known as sea lilies and feather stars, they have a hard calcite skeleton they were so plentiful in the Paleozoic seas that their remains made large limestone thicknesses.

You might be interested in
Which of the following best describes the views of U.S. industrialists such as John D. Rockefeller and Andrew Carnegie regarding
slega [8]

Answer:

Option B

Explanation:

Both the US industrialist John D. Rockefeller and Andrew Carnegie believed that the law of nature govern even the industrial , business or corporate sector. As in a wild forest, strongest animal survives by feeding the weak animals, like wise the business/industries/corporation of large size survive by feeding or eliminating the smaller ones. They think that this is not at all evil but it is as per the law of nature.

Thus, option B is correct.

6 0
3 years ago
A cell in the body is recognized as "self" by its _________ and is therefore not targeted by the immune response for destruction
otez555 [7]

Answer:

C

Explanation:

The major histocompatibility complex (MHC) is a group of genes whose function is to codify proteins that participate in the immune response, helping the system to <u>recognize foreign substances to develop an immune response</u>.

<u>Histocompatibility or compatibility of tissue </u>is given by self-identifications molecules (antigens) located on the surface of cells, membrane, these molecules are almost <u>unique to each person</u>, letting the body to distinguish self from non-self.

7 0
3 years ago
Tigers are often poached for their parts, used in traditional _________ medicine.
Ivanshal [37]

Answer:

Tigers are often poached for their parts, used in traditional __chinese_____ medicine.

Explanation:

Traditional Chinese medicine for over a thousand years has used the strength of the tiger to cure various physical and spiritual ailments. For this they need parts of the tiger such as their eyes, bones, teeth etc.

Below are some of the ailments treated:

-Tiger claws: It is used as a sedative for insomnia.

-Teeth: They are used to treat fever.

-Fat: It is used to treat leprosy and rheumatism.

The tiger is in danger of extinction, but they are still hunted to be used in medicine

4 0
3 years ago
Dr. Nachman and his colleagues collected rock pocket mice across 35 kilometers of the Arizona Sonoran Desert, which included bot
vlada-n [284]

Answer:

1)

  • frequencies of light-colored mice  ≅ 0.74
  • frequencies of dark-colored mice ≅ 0.26

2)

  • frequencies of light-colored mice ≅ 0.13
  • frequencies of dark-colored mice ≅ 0.87

3)

  • q² = 0.74
  • p² = 0.02
  • 2pq = 0.24      

4)

  • q² = 0.13
  • p² = 0.4
  • 2pq = 0.46

5)

The dark-colored fur seems to have the greatest overall selective advantage

6)

Dark lava, that changed the color of the substrate, from light to dark.

7)

Because to produce dark color, animals from the different regions suffered different mutations that drove them to have almost the same dark fur color. All of the animals are inhabiting dark substrate, which means that this environmental condition is favoring the same phenotype.

8)

To see if the mice population is evolving, you need to take a sample of animals per year, through many years, and analyze if it is changing or not. If the population is evolving, you will notice a change in the allelic and genotypic frequencies over the years, favoring one genotype or the other. If the population is not evolving, the frequencies will keep equal through the years, it will not change.

Explanation:

Due to technical problems, you will find the complete explanation in the attached files.

Download pdf
8 0
2 years ago
Arrange the events taking place during transcription in order: i) The pre-RNA undergoes processing ii) RNA polymerase moves down
Anastasy [175]

Answer:

RNA polymerase binds to the promoter

Polymerase initiates RNA synthesis at the start point on the template strand

RNA polymerase moves downstream unwinding the DNA

RNA transcript is released and polymerase detaches from the DNA

The pre-RNA undergoes processing

Explanation:

The promoter is the specific DNA sequence that serves as a binding site for RNA polymerase. The enzyme RNA polymerase recognizes the promoter sequence and binds to it to begin the process of RNA synthesis. The process of RNA synthesis begins at the start site where the process of the unwinding of DNA duplex is initiated.

The unwinding separates the two DNA strands at the start site where RNA polymerase begins the process of synthesis of the new RNA strand. The newly formed RNA strand and RNA polymerase are released from the template strand after the termination of the process.

In eukaryotes, the primary RNA transcript undergoes the process of splicing of introns, the addition of poly-A tails and 5' cap which in turn transform it into the mature mRNA.

8 0
3 years ago
Other questions:
  • In dna methylation, which nitrogenous base is most frequently methylated?
    6·1 answer
  • Water has the ability to dissolve and carve itself into limestone. What environmental process is
    14·1 answer
  • A testcross between f1 dihybrid flies produces more offspring with both traits like those of one parent or the other than offspr
    15·1 answer
  • What type of magma has the least tendency to from pyroclastic flows
    5·1 answer
  • Why do these factors alter diffusion rates? How do they affect rates?
    9·1 answer
  • Proton-driven rotation of the c-ring of the f0 unit of the f1f0 atp synthase is required for complete passage of protons from th
    10·1 answer
  • In which phase of matter are the same closely packed but still able to slide past each other
    7·2 answers
  • What are population pyramids? How do they help in understanding about the population of a country? (​
    5·1 answer
  • What is stored in the nucleus?
    5·2 answers
  • A large quantity of heavy rain falling in a short time period will MOST likely
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!