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Lapatulllka [165]
3 years ago
9

How old is the pecten gibbus? and how long was it around for?

Biology
1 answer:
Sladkaya [172]3 years ago
4 0

Answer: Age range is from 70.6 to 0.0 million years ago.

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Diffrent way observations are used in science inquiry
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3 years ago
Because they alter the reading frame of all base-pair triplets, base-pair additions and deletions are collectively referred to a
Rom4ik [11]

Answer:

The correct answer is option c. "frameshift mutations".

Explanation:

The reading frame of a gene is based on base-pair triplets, starting from the start codon until the ribosome encounters with the end codon. Base-pair additions and deletions are collectively referred to as frameshift mutations because they alter the reading frame of the gene. Base-pair additions and deletions break down the original sequence of the gene triplets, which alters the open reading frame and usually results in the production of non active proteins.

7 0
2 years ago
Pregnancy, which is characteristically associated with changes in hormone levels in the body is a process tightly regulated by:
Blababa [14]

Answer:

Pregnancy, which is characteristically associated with changes in hormone levels in the body is a process tightly regulated by the hormon Human Chorionic Gonadotropin

Explanation:

The so-called pregnancy hormone is the Human Chorionic Gonadotropin (HCG). It only occurs during the gestation period and is responsible for regulating the entire process. Segregated by the placenta, it can be found in urine and blood.

The presence of the hormone in the urine allows to confirm the pregnancy with the test.   As in pregnancy, the placenta begins to form, the cells that make it up begin to stimulate the production of HCG, which causes the hormone levels to increase very rapidly in the first trimester of pregnancy

4 0
3 years ago
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What is zero population growth?
levacccp [35]
I would guess it just means that the population just stays the same, no growth.
8 0
2 years ago
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- Enzymes serve several functions during DNA replication. Namne two of these functions.
Advocard [28]

Answer:

Topoisomerase and Primase

Explanation:

Topoisomerase — Relaxes the super-coiled DNA

Primase — Provides the starting point for DNA polymerase to begin synthesis of the new strand

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3 years ago
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