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juin [17]
3 years ago
6

Scientist analyze ‘’blank’’ found in lake bottoms to learn what type of plants lived there thousands of years ago

Biology
1 answer:
barxatty [35]3 years ago
5 0

Answer:

I'm pretty sure the answer is Pollen

Explanation:

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Some present-day bacteria use a system of anaerobic respiration characterized by an electron transport chain analogous to that f
geniusboy [140]

Answer:

The correct answer would be:

Neither of these response options accurately features the anaerobic electron transport chain.

Explanation:

The anaerobic respiration system vibrated by an electron transport chain is a mechanism that anaerobic bacteria have to maintain their respiration.

This mechanism does not require oxygen in the atmosphere, that is why it is said to be an anaerobic mechanism.

Bacteria do not all need oxygen in the environment to live, some need that oxygen is not exactly present (strict anaerobes) or that it is at low partial pressures (facultative anaerobes).

This mechanism is very characteristic in its location since it is located in the inner membrane of the mitochondria, that is why it will decide to indicate that option as the correct one.

6 0
3 years ago
When did prokaryotes arise
Artemon [7]
<span>The first organisms were prokaryotes that could withstand these harsh conditions. </span>
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3 years ago
Put the following fossils into the correct order, from oldest to most recent, based on when evidence of their evolution first ap
Ugo [173]

Answer:

the answer would be C.

Explanation:

V,II,III,IV,I

7 0
3 years ago
The skin has five layers of cells. true false
larisa [96]
False we have three layers of skin.
8 0
3 years ago
Read 2 more answers
Autism is a neurological disorder thought to be caused by mutant alleles of one or more genes. Scientists had been wondering why
Digiron [165]

Answer:

There is an accumulation of genetic mutations in the DNA of sperms due to its constant mitosis.

Explanation:

The germinative cells that will become sperms are under constant mitosis. During this process, DNA mutations can happen and be transmitted from one generation of cells to the other as the years go by, and more cell divisions take place, more mutations the DNA in the sperm will have. When the number of mutations reaches a certain level, his child will express these mutations and have autism.

The egg of the mother is not a factor because the germinative cells in women are not under constant mitosis, so there is not an accumulation of gene mutations. Women are born with an exact number of eggs for all their life.

4 0
3 years ago
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