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blsea [12.9K]
3 years ago
13

How did Darwin arrive at the idea about species variation

Biology
1 answer:
jeyben [28]3 years ago
5 0

Answer:

We can see some of the most important patterns Darwin noticed in distribution of organisms by looking at his observations of the Galápagos Islands off the coast of Ecuador. Darwin found that nearby islands in the Galápagos had similar but nonidentical species of finches living on them.

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What is meant by aseptate coenocytes​
spayn [35]

Answer:Filamentous fungi may contain multiple nuclei in a coenocytic mycelium. A coenocyte functions as a single coordinated unit composed of multiple cells linked structurally and functionally, i.e. through gap junctions. Fungal mycelia in which hyphae lack septa are known as "aseptate" or "coenocytic".

Coenocytic cells are present in diverse and unrelated groups of algae, including Xanthophyceae, red algae and green algae.

In the siphonous green algae Bryopsidales and some Dasycladales the entire thallus is a single multinucleate cell, which can be many meters across. However, in some cases, crosswalls may occur during reproduction.

Explanation:The green algal order Cladophorales is characterized by siphonocladous organization, i.e., the thalli are composed of many coenocytic cells.

In contrast to the Cladophorales where nuclei are organized in regularly spaced cytoplasmic domains, the cytoplasm of Bryopsidales exhibits streaming, enabling transportation of organelles, transcripts and nutrients across the plant.

6 0
3 years ago
How does a sperm cell get to an egg?
Kazeer [188]

Answer:

B. It is carrie6 by a pollinator

8 0
3 years ago
Read 2 more answers
Most of the water vapor in the atmosphere is found in the
Schach [20]

Answer:

i believe its troposphere

Explanation:

yes

8 0
3 years ago
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Why does sexual reproduction result in more genetic variation than asexual reproduction?
LuckyWell [14K]
Sexual reproduction<span> provides </span>genetic diversity<span> because the sperm and egg that are produced contain different combinations of </span>genes than<span> the parent organisms. ... Each resulting cell, or gamete, resulting from meiosis has only half the amount of DNA as the parent cell.</span>
3 0
3 years ago
People can breed cats for specific traits such as coat color through the process of _____. a. natural selection b. descent with
RSB [31]

Answer:

D. Artificial Selection.

Explanation:

Normal people can't breed cats by modifying their DNA, so options b and c are eliminated. Breeding cats for specific traits is not natural, so it is not choice a, either. Instead, selective breeding is d. artificial selection.

Hope this helps!

8 0
3 years ago
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