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marusya05 [52]
3 years ago
13

Scientists believe that birds and reptiles evolved from a common ancestor over millions of years which of the following offers t

he most direct support for this theory?

Biology
2 answers:
Molodets [167]3 years ago
7 0

Answer: the answer is C

Explanation:

artcher [175]3 years ago
5 0

Answer:

c

Explanation:

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Alexandra [31]

Answer and Explanation:

1. The biggest similarity between the main types of vertebrae is the location where they are found since they are all established on the body's back, precisely on the midline of the back. The main differences, on the other hand, are related to the size and weight of each of them.

2. The similarities exist because all the vertebrae have to promote the support of the body, the back being the most appropriate place for them to establish themselves.

3. The differences are related to the function and type of support that each vertebrae promotes, the higher the level of systemization, the larger and thicker the vertebrae must be.

4. The caudal vertebrae should be similar to the vertebrae of the coccix, since a tail would be a representation of elongation of the coccix. We can reach this conclusion through the analysis of images that promote the visualization of this area of the body.

5 0
4 years ago
The gravitational force between two objects will become ___ as their mass increases
dexar [7]

Answer: a

Explanation:

6 0
4 years ago
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Which of the following results provided evidence of a discrete nuclear localization signal somewhere on the nucleoplasmin protei
Akimi4 [234]

Answer:

Option B, After cleavage of the nucleoplasmin protein, only the tail segments appeared in the nucleus

Explanation:

Cleaving of nuclear localization signals occurs before the transportation into the nucleus. Before that it is responsible for sending nuclear protein continuously after every cell division leaving very little protein in the cytoplasm. Once the cleaving occurs, the nuclear localization signals, no more protein can be transmitted thereby leaving very little protein tail segments in the nucleus. Also the signal sequences on the proteins are removed once they are trans located.  

Hence, option B is correct

 

3 0
3 years ago
Liposomes consist of ________ bilayers that enclose an aqueous compartment where drugs can be contained for delivery to specific
Anna35 [415]

Answer:

Phospholipid bilayer

Explanation:

Liposomes are vesicles are spherical in shape. They consist of at least one phospholipd bilayer most especially phosphatidycholine. Liposomes are artficial vesicles similar to a membrane, because it has an hydrophilic core surrounded by a hydrophobic lipid bilayer.

Liposomes are artificial prepared and are used for the transportation of substances like drugs and nutrients between cell parts, outside of the cell and into the cell.  

In liposomal drug delivery, the liposome fuses with other internal cell membranes at the site of action and releases its liposomal content.

8 0
4 years ago
A class of biology students conducted an experiment on ants. Each group was randomly assigned 20 ants. Each ant was placed halfw
Mrac [35]

Answer:

Because the repetition of the experiment yields different results when they are realized by distinct groups of students .

Explanation:

The students needs to repeat the experiment and increase the value of n (sample size) in order to obtain statistically significant results and thus confirm the working hypothesis.

6 0
3 years ago
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