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iragen [17]
3 years ago
12

Which best describes a gamma ray?

Biology
1 answer:
nadya68 [22]3 years ago
6 0

Answer:

C.a negatively-charged ray of light and electrons

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The sickle-cell allele produces a serious blood disease in homozygous recessive individuals. why doesn't natural selection elimi
icang [17]

No, the sickle-cell anemia allele won't be eliminated by natural selection.

Sickle-cell anemia trait is controlled by a single gene and the allele (S) for sickle-cell anemia is a harmful autosomal recessive.

It is caused by a mutation in the normal allele (A) for hemoglobin (a protein on red blood cells).

Heterozygotes (AS) with the sickle-cell allele are resistant to malaria, a deadly tropical disease. It is common in many African populations.

In these areas, (S) carriers have been naturally selected, because their red blood cells, containing some abnormal hemoglobin, tend to be in sickle shape when they are infected by the malarial parasite.

Therefore, they are more likely to survive and reproduce. This keeps the S allele in the gene pool.

Learn more about Sickle-cell anemia on

brainly.com/question/14505007

#SPJ4

3 0
2 years ago
Compare the synthesis, storage transport of location of receptors and cellular mechanism of action catecholamine, thyroid, pepti
choli [55]

Peptide hormones are generated in the endoplasmic reticulum. Moreover, steroid hormones are generated in the endoplasmic reticulum and mitochondria.

<h3>What are peptide and steroid hormones?</h3>

Peptide hormones are hormones composed of amino acids, whereas steroid hormones are composed of lipids.

Peptide hormones are generated in the ER and then transported to the Golgi apparatus to be included in secretory vesicles for secretion.

Steroid hormones aren't stored in secretory vesicles and are transported by using serum proteins in the blood.

Learn more about peptide hormones here:

brainly.com/question/4678959

3 0
2 years ago
Muscles that bend at a joint are called:
evablogger [386]
Elbows and knees would be the answer
8 0
3 years ago
Read 2 more answers
What are environmental pressures for a rabbit, cactus, shark, and giraffe?
amm1812
Food - increase in height
Predators - fast reproduction, fast in general
Heat/lack of water - Cam photosynthesis, storage of water
Predator/prey arms war - sensors along side to detect prey, sense of smell, etc
5 0
3 years ago
In the food chain below, which is the producer?<br><br> grass<br> mouse<br> snake<br> hawk
ivolga24 [154]

Answer:

Grass

Explanation:

Grass is the producer in the given food chain.

Note : -

Grasses are green plants which synthesize food ( carbohydrate ) in presence of sun light in the process of photosynthesis. That's why grass is called producers.

4 0
2 years ago
Read 2 more answers
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