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Agata [3.3K]
2 years ago
6

All evolutionary changes that allow a species to change in response to the environment, are originally a result of

Biology
1 answer:
Norma-Jean [14]2 years ago
3 0
All evolutionary changes that allow a species to change in response to the environment, are originally a result of beneficial DNA mutations.

Beneficial genetic (DNA) mutations are result in individuals with special characteristics that allow them to survive better in the environment so they pass their genes to the next generation.

Here's a fictional example I made just for you!: Lets say you have an alien species called Hibas. They are jelly blobs that float around, don't move, and open their mouths to capture neon shrimps that happen to swim into their mouths. But one day a certain Hiba developed some muscles through a genetic mutation. It was able to "wiggle" through the water and steer itself instead of floating around. This allowed it to eat more neon shrimp than the other Hibas, so it grew faster and was able to reproduce faster. It's kids also had muscles and had an advantage so they reproduced faster then the other Hibas. Eventually the whole Hiba species started to have muscles because the ones that didn't weren't able to compete and did not survive as well. 
The reason that most of the Hibas developed muscles was because one of them had a mutation that allowed it to have muscles. This was a BENEFICIAL mutation that allowed it to SURVIVE BETTER.


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Consider the diagram. mc002-1.jpg Which process is represented? nondisjunction translocation inversion insertion
sladkih [1.3K]

If this is the picture you are talking about, the right answer is non-disjunction

Non-disjunction is the non-separation of homologous chromosomes at the time of cell division which results in the formation of ova or spermatozoa leading to an abnormality in the number of chromosomes of the egg thus fertilized by the spermatozoa.

The fertilized egg consists of either a single chromosome, what is called monosomy, or, conversely, three chromosomes, this is called trisomy. While naturally, the fertilized egg has a single pair of chromosomes.

7 0
3 years ago
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Why are scientific theories often so powerful?
vodka [1.7K]
Scientific theories are often so powerful because they have been tested several time by different peoples and they have been found to be true. A scientific theory is a well substantiated explanation for a specific phenomenon which has undergone many observations and experiments and has stand the test of time. Thus, scientific theories always have to be reckon with because they have been severally tested.
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3 years ago
What do the parasympathetic and sympathetic divisions have in common?.
Tamiku [17]

Listing the similarities between Parasympathetic and Sympathetic Nervous Systems

Both are part of the Autonomic Nervous System of our body.

Both Sympathetic and Parasympathetic nerves are involved in involuntary functions of the body.

Both Sympathetic and Parasympathetic Divisions of the Autonomic Nervous System impact the physiological processes of the body.

<h2><u><em>brainlist please</em></u></h2>
3 0
2 years ago
Please help me, I need this ASAP!
AveGali [126]
Prophase I
The chromosomes condense, and the nuclear envelope breaks down & crossing-over occurs.

Metaphase I
Pairs of homologous chromosomes move to the equator of the cell.

Anaphase I
Homologous chrmosomes move to the oppisite poles of the cell.


Telophase I and Cytokinesis
Chromosomes gather at the poles of the cells & the cytoplasm divides.

Prophase II
A new spidle forms around the chromosomes.

Metaphase II
Chromosomes line up at the equator.

Anaphase II
Centromeres divides & chromatids move to the opposite poles of the cells.

Telophase II and Cytokinesis
A nuclear envelope forms around each set of chromosomes & the cytoplasm divides.
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Which of the atoms below has the lowest atomic mass?​
Marizza181 [45]

Answer:

C

Explanation:

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