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Georgia [21]
3 years ago
9

5. What do fossils of transitional links illustrate?

Biology
1 answer:
kicyunya [14]3 years ago
4 0

Answer:A is the answer

Explanation:Hope you get it right

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Describe in detail: What is cancer?
lisabon 2012 [21]

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Cancer can develop anywhere in the body. It starts when cells grow out of control and crowd out normal cells. This makes it hard for your body to work the way it should.

For many people, cancer can be treated successfully. In fact, more people than ever before lead full lives after cancer treatment. The cells in our bodies all have certain jobs to do. Normal cells divide in an orderly way. They die when they are worn out or damaged, and new cells take their place. In cancer, the cells keep on growing and making new cells. They crowd out normal cells. This causes problems in the part of the body where the cancer started. They can also spread to other parts of the body.

6 0
3 years ago
What changes is pH occur during digestion of our food ?
mezya [45]
Parietal cells within the stomach lining secrete hydrochloric acid that lowers the pH of the stomach. A low pH (1.5 to 2) activates pepsin. Acetylcholine, gastrin, and histamine stimulate the proton pump in parietal cells to release hydrogen ions and decrease pH.
5 0
3 years ago
What’s the difference between a clementine and a tangerine?
ladessa [460]

Answer:

A tangerine is a fruit and Clementine is a character from the walking dead the game.

Explanation:

7 0
2 years ago
Put the following events of the light-dependent reactions in the order in which they occur:
MrMuchimi

photosystem 2, photosystem 1, pumping hydrogen..., and making NADPH

8 0
3 years ago
Place the following events in the proper order. 1) Activation of one or more cellular signaling proteins. 2) Dissociation of Ga
dolphi86 [110]

Answer:

4) Replacement of GDP by GTP on the Ga after interaction with an activated GPCR.

5) Conformational change in the Ga subunit causing a decreased affinity for the Gb g subunit.

2) Dissociation of Ga from the G protein complex.  

6) Ga-subunit with its attached GTP activates an effector like adenylyl cyclase.

3) Production of a second messenger, like cAMP.    

1) Activation of one or more cellular signaling proteins.

Explanation:

It is a signaling cascade initiated by G proteins. These G proteins function as molecular switches capable of activating signaling pathways in the presence of guanosine triphosphate (GTP), which is hydrolyzed in order to produce energy

6 0
3 years ago
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