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Alinara [238K]
2 years ago
15

Which of following best defines a community

Biology
2 answers:
Vesnalui [34]2 years ago
7 0

D. all biotic factors

belka [17]2 years ago
3 0

Answer:

D. All biotic factors

Explanation:

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Which organism has a better chance of leaving a fossil behind after it dies: earthworm or a fish? Explain your answer. (2 points
Musya8 [376]

Answer:

I think a fish

Explanation:

I'm pretty sure the earthworm would get buried or it's bones would just disentergrate. i cannot spell.

8 0
2 years ago
Use the mechanisms of meiosis to explain why most mules are sterile.
Tema [17]

Answer:

3. An even number of chromosomes are required for synapsis during prophase I and proper pairing during metaphase

Explanation:

Mules are hybrids of a cross between a female horse and a male donkey. Horses contain 64 chromosomes while donkeys contain 63 chromosomes in their somatic cells respectively. This means that they each produce 32 and 31 chromosomes respectively during meiosis. A mule, hence, contains 32+31= 63 chromosomes in their somatic cells.

This chromosome number in mules are uneven for meiosis to occur because meiotic division requires that an even number of homologous chromosomes pair together in a process called SYNAPSIS during prophase I of meiosis I. This is impossible in a mule because of the uneven number of chromosomes in its cells.

Also, during metaphase of meiosis, the homologous chromosomes need to be properly aligned at the equator for separation to occur. This is also impossible in a mule considering the number of chromosomes that don't add up.

Due to this reason of unevenness in the number of chromosomes present in a mule, meiosis will not occur and if meiosis (gamete formation) does not occur, reproduction cannot take place. Therefore, the mule is a sterile species i.e. cannot produce offsprings via sexual reproduction.

4 0
2 years ago
Magma which flows through channels to the surface will produce a what exactly
Dvinal [7]
It produces lava, which is what magma is called when it leaves the center of the earth. It exits through a fault or volcano.
6 0
3 years ago
Read 2 more answers
The carbon cycle is closely linked to which of the following processes?
Fittoniya [83]
Hi :D

For question 1 your answer would b C EVAPORATION

The Carbon Cycle goes from the environment through us then into the atmosphere kind of how evaporation does water; water would go to the environment then into us and evaporate into the sky

For question 2 your answer would be A  EARTHS ROTATION

The result of Earth's rotation on weather patterns and ocean currents. The Coriolis effect<span> makes storms swirl clockwise in the Southern hemisphere and counterclockwise in the Northern Hemisphere.
</span>
For question 3 your answer would be C <span>Identical fossils were found on continents that were far apart. 

There were fossil records matched up to continents that were supposed to be side by side at one point. </span><span>Fossils found on the east coast of Brazil match quite nicely with fossils found in western South Africa. Also, he noticed that a lot of the fossilized life found in the rock record didn't fit in the climates they were found in.

~Davonte</span>
4 0
3 years ago
Read 2 more answers
The inner core is made of molten materials. True or false?
Dima020 [189]
False unlike the outer core the inner core is made out of mostly solid because it contains iron
8 0
3 years ago
Read 2 more answers
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