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gizmo_the_mogwai [7]
3 years ago
5

In which of the following does meiosis play a more significant role than mitosis?

Biology
1 answer:
egoroff_w [7]3 years ago
4 0
The answer is D, increasing genetic variation
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Benthos are organisms that live
Ghella [55]

Answer:

Benthos are organisms that live

Examples:

Amphora

Cylindrotheca

Diploneis

Euglena

Fallacia

Gyrosigma

Navicula

Nitzschia

Plagiotropis

Staurophora

Please mark as brainliest please please

3 0
3 years ago
The word theory used in a scientific sense most closely means
s344n2d4d5 [400]
<h3>The answer is:</h3><h2>Hypothesis</h2>

A theory is an educated guess and so is a hypothesis. They both have limited evidence as a starting point for further investigation.

If you have any further questions, do not hesitate to ask me!

-Lena

4 0
3 years ago
During cellular respiration what is the direct source of the energu used in the cells of consumers?
nexus9112 [7]

Answer:

Consumers use chemical energy from the chemical bonds within organic molecules such as carbohydrates, lipids,  and amino acids.

Explanation:

<u>Heterotrophs are consumers</u>; they ingest or absorb organic matter (lipids, carbohydrates, proteins, etc.)  made by autotrophs or producers for their energy consumption. Autotrophs include plants, bacteria, and other photosynthesizing organisms, while heterotrophs include animals, fungi, protists, and bacteria.

Heterotrophs obtain energy from food through the process of cellular respiration. For instance, during aerobic respiration in mitochondria, they break down sugars in the form of glucose into carbon dioxide and water to obtain energy in the form of ATP or adenosine triphosphate.

aerobic respiration:      C6H12O6+ 6 O2 → 6 CO2 + 6 H2O + ≅38 ATP

                                      glucose+ oxygen →  carbon dioxide+ water+ energy

3 0
2 years ago
What is an advantage that exotic species have when introduced to a new habitat
Bumek [7]

Other than contributing to potential increase in diversity of species in an ecosystem, exotic species have positive benefits like removing toxins from the soil, regulating erosion, and controlling undesirable species.

8 0
2 years ago
The histone proteins are among the most slowly evolving proteins. For example, a histone protein called histone H4 in cows and p
juin [17]

The statement is true, histones are proteins that are high in the amino acids lysine and arginine, making them extremely basic in their structure.

Histones control the degree of packaging of DNA during the processes of gene expression, replication or repair of hereditary material, among many others.

Histones H2A, H2B, H3 and H4 are small and basic proteins that are highly conserved in evolution and are composed of a globular domain at the carboxy-end, and by regions known as "tails", which are found at the amino-terminal end.

These tails are high in the amino acids lysine and arginine, which give them a positive charge.

This region is the site of numerous post-translational modifications that, it has been proposed, would modify the histone charge, altering the accessibility of the DNA and the protein / protein interactions with the nucleosome.

Chromatin compaction occurs due to the interaction between the negative charges of DNA and the positive charges of amino acids, mainly located on the tails of histones H3 and H4.

Therefore, we can conclude that the modifications on the amino acids lysine and arginine that form the basic part of the histone structure alter their functions.

Learn more about histone proteins here: brainly.com/question/14984828

8 0
2 years ago
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