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Harman [31]
3 years ago
7

What are the species that no longer exist on earth known as

Biology
2 answers:
Natasha_Volkova [10]3 years ago
4 0
They fall under the category of “extinct”
siniylev [52]3 years ago
4 0

Answer:

Extinct. A species that no longer exists anywhere on Earth.

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Which amino acids have side chains that fit into the specificity pocket of chymotrypsin? arginine glycine tyrosine aspartate phe
frez [133]

Answer: tyrosine and phenylalanine

Explanation:

Chymotrypsin is a mammalian digestive enzyme that catalyzes the hydrolysis of proteins in the small intestine. it is highly selective in its action as it hydrolyzes only those peptide bonds on the carboxyl side of AROMATIC AMINO ACIDS such as tyrosine, phenylanine, tryptothan.

Thus, of all listed tyrosine and phenylalanine are the amino acids.

8 0
4 years ago
What is biomagnification? anyone up?​
lord [1]

Answer:

The phenomenon through which certain pollutants (harmful chemicals) get accumulated in tissues of organisms at different trophic levels in increasing concentrations along the food chain, is called Biomagnification.

Explanation:

1)Suppose, DDT is being used in a farmland.

2)There's a water body nearby the farmland and the water is contaminated with the DDT(let's say the quantity: 0.003 ppb).

3)Now the aquatic organisms (Zooplankton) which consume this water also consuming the DDT also.(0.04 ppm)

4)Next these Zooplanktons are consumed by small fishes. (0.5 ppm)

5)These small fishes are then consumed by Large fishes. (2 ppm)

6)These Large Fishes are consumed by Humans or Birds afterwards. (25 ppm)

7) So at each step DDT is also getting accumulated and at each successive trophic level the quantity of Accumulated DDT gets magnified as the organisms on higher trophic levels consume more biomass than the previous ones. This is a classical example of Biomagnification.

3 0
2 years ago
A virus is unlike an organism in that the virus is __________.
Ahat [919]
A virus is unlike an organism in that the virus <u>cannot reproduce outside a living cell.</u>
Organisms can reproduce independently, whereas viruses have to "kidnap" other cells and settle there in order to make an "offspring."
5 0
3 years ago
Read 2 more answers
The cerebrospinal fluid (csf) is confined between the
andrey2020 [161]
The CSF is confined between the pia mater and arachnoid mater
4 0
4 years ago
Which is an example of condominance
umka21 [38]

Answer:

<u><em>When two alleles for a trait are equally expressed with neither being recessive or dominant, it creates codominance. Examples of codominance include a person with type AB blood, which means that both the A allele and the B allele are equally expressed.</em></u>

Explanation:

8 0
4 years ago
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