The
movement of organism in the ocean’s water column is called <span>vertical
migration, in the daily up-and-down movement. Vertical migration is the
vertical movement or the organism along the water column in response to
seasonal, ontogenic, and daily changes. Diel is the most important type of
vertical migration.</span>
Answer:
There are a number of mechanisms through which a bacterial cell might become resistant to a specific antibody.
- Some bacteria might posses a cell membrane which wouldn't allow the transfer of antibiotics into the cell of the bacteria. Some bacterial cells might not have the target sites on which the antibiotics attack. A bacterial cell that would be non-resistant wouldn't block the entry of the drug or it might not lack the site where the drug has to function.
- Some resistant bacteria might produce enzymes that would inactivate the activity of the antibiotics. This enzyme machinery would lack in a non-resistant strain. The resistant bacteria might have undergone mutations over a period of time to evolve a machinery for antibiotic resistance.
The percentage of alleles for homozygous recessive would be 50%
<span>B. produces an adult that's completely different from the larva.
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Amphibians live near water sources because they need an area where they can lay and protect their eggs. The early stages of an amphibian's life is spent mostly underwater. This is where they mature and slowly develop into land organisms. In the early stage of their life, they breathe through their gills and they do not have limbs yet. As they grow gradual changes in their body structures are prominent, this process if called metamorphosis.</span>