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sladkih [1.3K]
3 years ago
8

The first step of the design process is to

Biology
1 answer:
Mekhanik [1.2K]3 years ago
5 0

Answer::::::::::::::::::::C

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For an organism to grow, chemical reactions that absorb energy from the surroundings must take place. However, these reactions d
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3 years ago
NEED HELP ANSWER QUICKLY :)
Usimov [2.4K]

Answer: It’s definitely not D. I’m thinking A or C

Explanation:

Because survival of the fittest mean that the ones that aren’t the best will die basically. So that why it’s not D

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2 years ago
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in the new six kingdom system of classification, the six kingdoms may be grouped into three domains. the four kingdoms that are
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4 0
3 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
3 years ago
Why is so much energy "lost" between trophic levels?
BabaBlast [244]

Answer:

Energy decreases as it moves up trophic levels because energy is lost as metabolic heat.

Explanation:

When the organisms from one trophic level are consumed by organisms from the next level. ... A food chain can usually sustain no more than six energy transfers before all the energy is used up.

3 0
3 years ago
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