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Nastasia [14]
3 years ago
9

Question 3 of 10

Biology
1 answer:
Papessa [141]3 years ago
3 0

Answer:

science answer questions about what people should do

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What would happen to<br> offspring if crossing over did<br> not occur?
Dovator [93]

Answer: If crossing over did not occur during meiosis, there would be less genetic variation within a species. ... Also the species could die out due to disease and any immunity gained will die with the individual. Two types of gametes are possible when following genes on the same chromosomes. If crossing over does not occur, the products are parental gametes. If crossing over occurs, the products are recombinant gametes.

Explanation:

6 0
3 years ago
Choose the correct function of the mitochondria.
rewona [7]
D is the correct answer. everything said in all of the above is in the mitochondria to help it function.
4 0
3 years ago
Time on earth is divided into 6 eras. Three are considered "Precambrian" Which eras are NOT Precambrian?
bulgar [2K]

Explanation:

<u>the  Paleozoic Era </u>

The Precambrian era describes a period of time that pre-dates Cambrian. This time typically references the entire period of the history of earth before the formation of rocks containing identifiable fossils occurred. It covers the majority of Earth’s history and is divided into the Hadean, Archean and the Proterozoic era.

Just before the Cambrian eruption, in the  Paleozoic Era the environment was oxygenated, culminating in an explosion of new life in the Proteozoic Eon (2500-541 million years ago) in the form of primitive blue-green algae named cyanobacteria and oxygen based species. Multicellular species followed later, along with structure at higher levels, and complex life. Oxygen levels grew gradually over this period of time, from low levels.

Learn more about cellular life at brainly.com/question/11259903

#LearnWithBrainly

8 0
2 years ago
How much of the Amazon has been discovered?​
andreev551 [17]

Answer:

well most people havent seen everthing on amazon

Explanation:

6 0
3 years ago
Read 2 more answers
When not enough oxygen is available to cells during rigorous exercise, muscle cells must convert pyruvate to __________ to gener
Kipish [7]

The correct answer is: A) lactic acid.

During the exercise, muscle cells use anaerobic respiration in order to make enough energy in the form of ATP. Anaerobic respiration doesn’t require oxygen, but glucose is broken down to produce energy. Glucose is broken down to pyruvate in the process called glycolysis. Next step is convert of pyruvate into lactic acid (or lactate).

During the exercise, the oxygen level in muscle cells decreases, which results in anaerobic respiration of the cells.


3 0
3 years ago
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