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stira [4]
3 years ago
15

What did Louis Pasteur's experiment contribute to cell theory?

Biology
2 answers:
Luda [366]3 years ago
8 0
<span>
The proof that cells only come from other cells

He proved it by his "swan-necked flasks" in which nothing formed in sealed flask whereas many organisms were there in open flask.

So, in short, option D is your final answer!

Hope this helps!
</span>
andrezito [222]3 years ago
7 0

Answer:

D the answer is D

Explanation:

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Which list shows organization of living things from the simplest to most complex?
tangare [24]

Answer:

d

Explanation:

Because you need the cell to become tissue then the tissue Becomes organs then a bunch of organs become a organ system

6 0
3 years ago
Suppose there are two genes on two different chromosomes, one gene called G and the other called D. An individual has the genoty
Ronch [10]

Answer:

as the question does not contains image i have  already mentioned the link to image in ask for detail section therefore i will answer according to that image.

the answer is "B"

Explanation:

Because before crossing over but after duplication both chromosomes will have same alleles as GgDd therefore according to the image the answer will be option "B". as this option showed duplicated chromosomes.

7 0
3 years ago
Read 2 more answers
What type of tissues carry messages
Crank

Answer: Tissue that carries messages throughout our bodies is called nerves. Nerves conduct electrical impulses between the brain and brain stem to all parts

6 0
3 years ago
Metabolic pathways can be controlled through the availability of enzymes and modulation of their catalytic activities. Enzyme av
postnew [5]

Answer: a) substrate and cofactors b) covalent modification

Explanation:

Metabolic pathways involve all the chemical processes takes place in the enviornment or in an organisms.The metabolic pathways are controlled through the catalytic activities of enzymes.

The availability of enzyme is regulated  by substrate and cofactors present in enzyme and enzyme activity is commonly regulated via covalent modification.

Enzymes are highly selective in nature and bind to a specific substarte only. The active site in enzyme binds with the substrate to form enzyme substrate complex. Coactors assist the enzyme activity, without cofactor enzyme can not perform its activity.

Hence enzyme availibility is regulated by  substrate and cofactors regulates.

Covalent modifications regulates activity of enzyme as it involves addition and removal of chemical group to synthesis required protein. It can change the chemical properties of the site by targeting one or multiple amino acid.

Thus the correct answer is a) substrate and cofactors b) covalent modification

8 0
3 years ago
In a sample of double stranded dna, 30% of the nitrogenous bases are thymine what is the percentage of the nitrogenous bases in
Likurg_2 [28]
Adenine pairs with thymine. They form complementary pairs withone another during replication of the parent strand, forming the complement strand. If thymine is present for 30% of the bases, then its complement, adenine, will also be present in 30% of the bases.
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3 years ago
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