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lara [203]
2 years ago
11

What type of enzyme helps speed up cellular reactions

Biology
1 answer:
MissTica2 years ago
4 0
Enzyme speed up chemical reaction by lowering activation rates
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How many unique zygotes can a couple make?
san4es73 [151]

Each person carries 23 pairs of  chromosomes in every cell that makes up their body, with the exception of gametes, which contain 23 SINGLE chromosomes. So when a sperm and egg meet, they then have 23 pairs. In the process of meiosis 'crossing-over' occurs, which means that the chromosomes get "shuffled". This means that the child can receive random traits not only from the parents, but also the grandparents. so there is about  2⁴⁶ possible pairings, excluding the risk for things such as Down-Syndrome

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What is needed for natural selection to occur? Select all that apply.
DIA [1.3K]
These are the answers to thisA C D E
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3 years ago
The endosperm of a Conifer seed is:
riadik2000 [5.3K]

Answer:

A. Haploid (n)

Explanation:

Conifers do not exhibit double fertilization that forms triploid (3n) endosperm in flowering plants.

Endosperm in conifers develops from the haploid cell of female gametophyte before fertilization. Since the endosperm is formed by the mitotic divisions in the haploid cell (n) of female gametophyte, it is haploid (n) in nature.  

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3 years ago
The relationship exemplified by bees consuming nectar and carrying pollen from one flower to another is known as: A. Commensalis
ehidna [41]

Answer:

C

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In this example, the bees feed on nectar produced by the flower a plant and carries pollen along when it feeds on the nectar produced by the flower of another plant. The bees are getting fed, thanks to the plant, while the plant is getting cross-pollinated, thanks to the bee.

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3 years ago
what is the function of vesicles in the synthesis of proteins and the release or those proteins outside the cell?
Zina [86]

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Hope this helps!

-Payshence

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3 years ago
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