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victus00 [196]
3 years ago
10

Mammals quick check

Biology
1 answer:
Nostrana [21]3 years ago
7 0
Marsupials go in pouches like kangaroos and koalas they develop in the pouch they look similar to the adult aswell put the rest for mono
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mezya [45]

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6==. During spermatogenesis, four sperm result from each primary spermatocyte, which divides into two haploid secondary spermatocytes; these cells will go through a second meiotic division to produce four spermatids

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In snapdragons, heterozygotes have pink flowers, whereas the dominant and recessive homozygotes have red and white flowers, resp
IRINA_888 [86]

Answer:

100%

Explanation:

We are given a red flower plant. This means its homozygous dominant (RR). We are given a white flower plant. This means it is homozygous recessive (rr). Each plant will give its allele. The red one will always give R and the white one will always give r. Heterozygous (Rr) plants have pink flowers. So they will all be pink.

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3 years ago
Your science teacher asks you to build a model of a cell. The model should look like a city, and buildings in the city should re
Mariulka [41]

Answer: The correct answer is B)  city hall:control center.

As per the question, model of cell looks like a city where different buildings correspond to different organelles ( membrane bound subcellular compartments like nucleus, golgi complex, vacuole, endoplasmic reticulum).

Nucleus is a specialized membrane bound compartment that possesses the genetic material ( DNA) of the Eukaryotes ( like plants and animals).

Nucleus controls all the essential activities of the cell by regulating the expression of gene ( segment of DNA corresponding to a particular protein).

Therefore, in the model of cell, city hall;control center represents the nucleus of the cell.


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What is a Mercalli scale ? ( must be in your own words)
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