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Harlamova29_29 [7]
3 years ago
13

The __________ was a period of rapid change during which the ancestors of most animal groups emerged. A layer of soot found betw

een rock layers worldwide, known as the____________, might indicate that a large meteorite collided with Earth.
Biology
1 answer:
sashaice [31]3 years ago
5 0
1) Cambrian explosion
2) K-T boundary
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What is it biotechnology?<br> What is it artificial selection? What it is clone?
kobusy [5.1K]
Biotechnology is the exploitation of biological processes for industrial and other purposes, especially the genetic manipulation of microorganisms for the production of antibiotics, hormones, and stuff.
~credit to google -_- ~

ooh I know the others

artificial selection is humans selecting two different species or breeds and making them... you know... and then a new combination is born! Usually is used for agricultural purposes, like new and better cows, or for scientific purposes like the Liger. 


A Clone is a being with the same exact DNA structure of the previous Being, and they are usually created with a single mother.
3 0
3 years ago
what is possible explanation for why aerobic respiration produces greater amounts of energy than anaerobic respiration​
tia_tia [17]

Answer:

Anaerobic respiration does not proceed to the electron transport chain

Explanation:

Aerobic respiration occurs when oxygen is available. When oxygen is available, glycolysis is followed by the Kreb's cycle and then the electron transport chain. The electron transport chain produces the vast majority of ATP during respiration.

The electron transport chain proceeds when there is the presence of oxygen because oxygen acts as the final electron acceptor in the electron transport chain.

When there is no oxygen to act as the final electron acceptor, the cell must undergo anaerobic respiration, which does not involve the electron transport chain, producing much less energy. See the attached diagram for a picture!

8 0
3 years ago
Suppose that your friend is moving far away and describing his new location. He mentions that the area gets a lot of precipitati
11111nata11111 [884]
D, because it says,"surrounded by flowering trees and conifers"
3 0
4 years ago
Which best describes a protein?
ad-work [718]

Answer:

C. A chain of amino acids

Explanation:

Proteins are made up of hundreds or thousands of smaller units called amino acids, which are attached to one another in long chains. There are 20 different types of amino acids that can be combined to make a protein. ... These proteins bind and carry atoms and small molecules within cells and throughout the body.

6 0
3 years ago
¿porque los virus nos necesitan?
denis-greek [22]

Answer:

se alimentan de células sanguíneas y de nuestros cuerpos

espero que esto ayude  :)

4 0
3 years ago
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