Answer:
Mesenger Rna carries a transcript of the DNA’s instructions out of the nucleus to the ribosome.
Answer:
S1 and S3
Explanation:
The spine is composed of 33 vertebrae and has 31 pairs of nerves that are distributed throughout the body in an organized manner. Each nerve that leaves the spine is responsible for imparting sensitivity and strength to a particular area of the body, so whenever there is a compression or cut of a nerve, a particular area of the body is compromised.
When a person has a feeling of numbness in the foot, as shown in the above question, it is more likely that there is a change in the spine, specifically in the nerves S1 and S3. This is because nerve S1 is responsible for eversion of the foot, while nerve S3 is responsible for the intrinsic muscles of the foot.
Answer:
Some fish or amphibians secrete <u>mucus that retains water or oxygen particles and then it passes into their body.
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Explanation:
Many amphibians and fish have thin and in many cases slippery skin.
This is because some species secrete slimy substances through the skin, keeping it wet.
Since some fish or amphibians cannot ingest water directly, they need a way to stay hydrated.
This viscosity or mucus makes possible for the animal to come into contact with water and oxygen, and then ingest them.
In addition to this in some amphibians, mucus disperses secretions from other glands, the poisonous glands, which serve as a shield for predators.
Answer:
0.2 or 20%
Explanation:
Assuming that the population is in Hardy-Weinberg equilibrium:
p + q = 1
p² + 2pq + q² = 1 where,
p = frequency of dominant allele
q = frequency of recessive allele
p² = frequency of homozygous dominant genotype
2pq = frequency of heterozygous genotype
q² = frequency of homozygous recessive genotype
Here,
since the trait is autosomal recessive, q² = 4% or 0.04
Frequency of recessive harmful allele = q
= √0.04
= 0.2 or 20%
Sandstone is a clastic sedimentary rock.
