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olya-2409 [2.1K]
2 years ago
14

What helps speed up a chemical reaction?

Biology
2 answers:
LenaWriter [7]2 years ago
7 0

Answer:

the answer will be enzyme

Amanda [17]2 years ago
5 0

Explanation:

catalysts speed up chemical reactions

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Where is the medulla oblongata located.​
enyata [817]

Explanation:

The medulla oblongata is located in the hind brain.

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2 years ago
What is the name of the darker blue/purple section that is cut out of the magenta molecule?
seraphim [82]

Answer:

Basophils

Explanation:

Basophils are a special type of  white blood cells that are produced in the bone marrow and their main role entails inducing and maintaining allergic conditions.

In staining, Basophils shows  dark blue granules which contains histamine, heparin and peroxidase. In preparation of Schiff reagent ; magenta molecule ( Fuchsin dye ); gives a range of colors from magenta to purple. The stain cause nuclei to become blue, and glycogen and fungi to become magenta in color.

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3 years ago
True or False- The thermosphere contains no water vapor.
zmey [24]

Answer:

True

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3 years ago
A woman who is a carrier for colour blindness (X-linked recessive) has children with a man who has normal colour vision. A. What
viva [34]

Answer:

Explanation:

The Genotype of the  woman is XCbXN

The man XNY

Since the allele for the color blindness is carried on one of the X -chromosomes of the  carrier mother, then  the male children will be color blind or carrier deopending on the defective gene they inherited. Since they will receive the defective or normal  allele from the  mothers,but the female will carriers or normal because they will inherit either defective allele or normal allele from the mother,but normal  X allele from the father.

Assuming the colorbind gene was inherited by One of the boys, and the girls take the defective genes

1. XNY vs XCbXN.Then the one of the  boys will be colorblind  and the one of  girls will be carriers. XNXCb, XNXN, XCbY,XNY  50 %

2.If the two boys take the effective genes from the mothers. and none of the girls take the defective alelle

Then the two boys will be colorblind and the girls will be carrries XcbY,XcbY and XNXN XNXN.(normal girls).

The proportions that will be  the females  since the girls can only take the defective allele from one of the normal and defective allele from the mother. Assuming the girls  take the defective allele from the mothers and take normal from the father,they will all  be carriers,since the X of the father is normal.

They can not have a color blind girl.Since the father is normal It takes two colorblind X-chromosome to give a girl.

5 0
3 years ago
What is the theory of punctuated equilibrium
seropon [69]
Which proposes that once species<span> appear in the </span>fossil record<span> they will become stable.... i think i just wanted to help......</span>
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3 years ago
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