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Slav-nsk [51]
3 years ago
15

A certain cell cannot get the amount of oxygen and nutrients that it needs into the cell. It is possible that the surface-area-t

o-volume ratio is ____.
1) Not changing quickly enough

2) Too high

3) Changing to quickly

4) Too low
Biology
1 answer:
Artyom0805 [142]3 years ago
6 0
I guess the most appropriate answer is 4 !!
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PLEASE HELP!!! ASAP 30 POINTS!!
Nikolay [14]

Darwin’s research showed that finches beaks are different to fit their food source. It also started the theories of evolution and natural selection. The Grant’s research on the Galapagos Islands showed that evolution exists and can happen over a course of two years. They proved Darwin’s theories are true. Since all the plants and animals are native to the islands, they had to adapt to the new food source and climate. Beaks, size, etc. are all changes made to these organisms to be able to live on the islands. 

The Galapagos Islands are located in Ecuador and sit on the Pacific Ocean. <span>The Galapagos Islands were formed from 3 million to 5 million years ago. Volcanic eruptions typically shield volcanoes formed the islands. They are located over a “particularly hot mantel” that causes volcanic activity. The outcome of many eruptions were islands because the left overs were pushed to the surface. The Galapagos islands are pretty big reaching an area of 3,093 miles. The temperatures range from 69 to 84 degrees creating a typically warm climate. </span>

Darwin studied medicine at age 16, but became fascinated specimens around the globe. He developed theories of natural selection and evolution. While he was on the Galapagos islands, he studied thirteen different species of finches.

 He observed finches and different beak structures. He observed their ability to consume foods such as nuts, bugs, and fruit. He concluded all were related to their beaks. For example, long, slender beaks are good to reach in the flowers of a cactus.

<span>Charles concluded that the finches beaks are examples of adaptive radiation. To fit in the island, they had to adapt to the conditions. This lead to Charles’ theory of natural selection. </span>

Charles came to the conclusion of evolution and natural selection. Natural selection is the process where organisms adapt to their environment to survive and produce more offspring. Evolution is where different kinds of living organisms are thought to have developed. These theories have changed science forever and leave today’s scientists marveling of his theories.

I hope this helps:)

5 0
3 years ago
What is leukemia? Its symptoms​
Nikitich [7]

Answer:

leukemia is cancer of body's blood forming tissue, including the bone marrow and lymphatic system.

its symptoms is fever and chills.

hope it helps.

5 0
3 years ago
What is the percent composition of blood?
Evgen [1.6K]

Answer: 7%

Explanation:

5 0
3 years ago
Cholesterol has a much higher profile than the other lipids because of its association with heart disease. Despite its lethal re
yaroslaw [1]

Answer and Explanation:

The mechanism of action of statins begins with the inhibition of a protein called HMG-CoA reductase, allowing its substrate to accumulate in the body and promote cholesterol reduction. At that moment, a transporter called OATP (Organic Anion Transporting Polypeptides) takes statins to the epatic tissue where they will be transformed and metabolized until they are eliminated through bile. This elimination is influenced by the P-glycoprotein, which is the main cause of the efflix presented by the bili. This process can get help from other molecules like some protease inhibitors, digoxin and cyclosporine.

5 0
3 years ago
Which part of the Pakicetus anatomy most suggests that it is an ancestor of whales?
Burka [1]

Answer:

Pakicetus had an ear bone with a characteristic specific to whales and a distinctive long skull shape of a whale's.

Pakicetus

• Pakicetus was a wolf-sized animal and was a carnivore that at certain occasions consumed fish had exhibited features of its anatomy that associated it to the modern cetaceans, porpoises, whales, and dolphins.

• It had the body of a land animal, however, its head exhibited the distinctive long skull similar to a whale.

• With time, the fossils also showed that Pakicetus possessed an ear bone with a characteristic specific to whales.

Thus, pakicetus can be considered as the first whale who exhibited certain similar anatomic features like that of a whale.

Find out more information about Pakicetus anatomy here:

brainly.com/question/16395727

Explanation:

8 0
3 years ago
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