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aalyn [17]
3 years ago
10

The outermost layer of an animal cell

Biology
1 answer:
igor_vitrenko [27]3 years ago
6 0
Cell membrane I believe
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In McMillen and Austin’s research (1971), participants who had lied were more likely to
Lelu [443]

In McMillen and Austin’s research (1971), participants who had lied were more likely to volunteer a large amount of time.

Explanation:

The research work conducted by Mcmillen and Austin in the year 1971, included  college students as participants of the research. In this process they are asked to perform a small test of intelligence. One portion of them was asked to cheat and lie and the rest were left not to cheat.

After finishing the test, the participants were asked to help the administrator to conduct the next round of test for other slot of participants. It was seen that the students who did not lie or cheat, helped them in their work for about 2 minutes. But students, who did lie, stayed and helped for 53 minutes.

8 0
3 years ago
If the parent genotypes are Aa and Aa, the offspring are expected to be _____. 1/2 AA and 1/2 aa all Aa 1/4 AA, 1/2 Aa, 1/4 aa 3
yan [13]
Punnet squares are your friend with these kinds of questions :)

   <u>   A  |  a  |</u>
A <u>| AA | Aa |</u>
a <u>| Aa | aa |</u>

Now we can easily see that 1/4 of the offspring will be AA, 1/2 will be Aa, and 1/4 will be aa. Therefore, it is the third answer that's correct (1/4 AA, 1/2 Aa, 1/4 aa). Hope this helps! :)
7 0
3 years ago
Ichthyosaurs, now extinct, were aquatic reptiles with dorsal fins and tails, similar to those of fish. Their most recent ancesto
velikii [3]

Answer:

Adaptations to a common environment and examples of convergent evolution

Explanation:  

Convergent evolution is a process by which two independent and phylogenetically separated organisms, get to develop similar structures or behavior to survive. These structures make possible a better performance in a similar environment. These organisms are morphologically or ethologically similar in their whole bodies or just in parts.  

Convergent evolution occurs in different phylogenetic branches independently from each other. It results from the need of different organisms to adapt to a similar environment and to solve a problem from that particular ecological niche. Ecological pressures acting on them might be similar, modeling the organisms´ phenotype. Each evolutive branch ends by developing the same structures, which they both find effective in their environment.  

In the exposed example, Ichthyosaurs (reptile) and fishes are separated species on evolutive time, corresponding to different phylogenetic lineages. Both of them inhabit the same aquatic environment. Pressures of the habitat acted on them and modeling their phenotypes. These species need to adapt to living in water, moving, feeding, scaping, chasing, etc. So both species arrived at the same solution. They developed dorsal fins and tails, which are important to stabilize the body in the water while swimming, making it more hydrodynamic and getting to propel better.

6 0
3 years ago
Your biology instructor says in class that the fossil remains of primates from the Eocene demonstrate that they were nothing lik
MatroZZZ [7]

Answer:

The Eocene Epoche coincides with the form of primates which are placental mammals.

Explanation:

The main characters of placental mammals contain large body,bigger brain that appear at that time from the fossil record.

True primates were evolve in 55 million years ago,at the beginning of eocene epoch.

These fossil records were found in  North America, Europe, Asia.

The fossil were squirrel like size with grasping hand,feet, that helps them for climbling the tree.

The fossil record of primate that were found contain stereoscopic vision.

3 0
3 years ago
Which of the following does NOT correctly match a fault with its boundary?
IrinaVladis [17]

Answer:

reverse fault & convergent boundary

Explanation:

because I feel like that the best option

7 0
3 years ago
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