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vovangra [49]
3 years ago
11

Please solve all of question 20

Biology
1 answer:
Musya8 [376]3 years ago
6 0

Answer:

use ur textbook

Explanation:

it says use it

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Which of these would not be used by a biologist to determine the relationship between two organisms
GuDViN [60]

Answer: Do you have answer choices?

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2 years ago
Precipitation of a substance occurs when:
Eva8 [605]

Answer:

In solids, precipitation occurs if the concentration of one solid is above the solubility limit in the host solid, due to rapid quenching or ion implantation, and the temperature is high enough that diffusion can lead to segregation into precipitates.

Explanation:

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3 years ago
Which process creates most of the cells in our body? <br> Mitosis<br> Meiosis
allochka39001 [22]

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meiosis, hope this helped!

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The appearance of a fertile, polyploid individual within a population of diploid organisms is a possible source of new species.
Leokris [45]

Answer:

Sympatric speciation.

Explanation:

Sympatric speciation is a type of speciation that occurs when 2 types of groups of the common species live in the common geographic location, but they grow differently until they can no longer interbreed and are known as different species.

This speciation can occur in different types of species such as bacteria, the apple maggot fly, and cichlid fish, but it is difficult to tell when this speciation is happening or has occurred in nature. There are four types of speciation occurs:

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2) Allopathic

3) Parapatric

4) Peripatric.

6 0
3 years ago
Help please I don’t get it
gizmo_the_mogwai [7]

In the light dependent reactions light energy is absorbed by the photosytem II and an electron is released. This electron causes a process called photolysis to occur(H20-->2H++2e-+1/2O2). This is how O2 is released in the atmosphere. The electrons resulted from photolyisis enter the electron transport chain. In the electron transport chain using the energy in the elecrtons, hydrogen protons are pumped inside the thylakoid. Those protons accumulate to form an electrochemical gradient. That means the protons need to flow out, and they do through an enzyme called ATP-synthase which turns ADP and inorganic phosphate into ATP and water. In the electron transport chain, the electrons reach Photosystem I where NADP+ is reduced and becomes NADPH.

ATP and NADPH store the energy absorbed in the light dependent reactions. Those two molecules are needed when CO2 is fixated in Calvin's cycle to synthesize glucose.

6 0
3 years ago
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