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ehidna [41]
3 years ago
10

I don’t know what the answers are

Biology
1 answer:
Marta_Voda [28]3 years ago
5 0
The answer to number 4 is D
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Cross bridge formation between myosin heads and actin molecules is caused by the elevation of calcium ion concentration in the c
almond37 [142]

Answer:

sarcoplasmic reticulum deteriorates and ATP production is stopped

Explanation:

Rigor mortis is the third stage of death characterized by stiffening of joints and muscles in body. The stiffening occurs because muscles are not able to return to the relaxed state. There are two reasons for rigor mortis, depletion of ATP and increase in calcium concentration in cytosol. Due to these factors the actin-myosin crossbridge is not able to break and the muscles remain in contracted state.

Sarcoplasmic reticulum deteriorates and calcium is released into the cytosol. Sarcolemma ( covering of muscle fiber ) also breaks down releasing extra calcium into the cytosol. Calcium is responsible for formation of actin-myosin cross bridge and when its concentration increases the bridge is formed continuously leading to stiffening of muscles and joints.  

3 0
3 years ago
An individual having two different alleles of a specific gene is described as being _________ for that specific trait.
borishaifa [10]

An individual having two different alleles of a specific gene is described as being Heterozygous for that specific trait.

You have a heterozygous genotype for that gene if the two versions differ. Being heterozygous for hair color, for example, means you have one allele for red hair and one allele for brown hair. The interaction of the two alleles influences which traits are expressed.

Being homozygous for a gene means you inherited two identical copies. It is the inverse of a heterozygous genotype, in which the alleles differ. People with recessive characteristics, such as blue eyes or red hair, are always homozygous for that gene. In genetics, heterozygous means having inherited different versions (alleles) of a genomic marker from each biological parent. As a result, a person who is heterozygous for a genomic marker has two distinct versions of that marker.

To learn more about Heterozygous, here

brainly.com/question/451365

#SPJ4

5 0
1 year ago
Water
Alinara [238K]

Answer:

the answer is B

Explanation: i legit just took the unit test

5 0
2 years ago
Why is a circulatory system is important in meeting the needs of all cells throught an animals body
Anarel [89]
Provide oxygen to all the cells
3 0
3 years ago
Given two types of starfish, gold ones and purple ones, that are members of the same species. In your sample area, there are 325
Sergeeva-Olga [200]

Answer: I believe I can fly

Explanation:

I believe I can touch the sky.

JK Love you bae

3 0
3 years ago
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