B. oxygen: carbon dioxide
C. carbon dioxide: hydrogen
D. carbon dioxide: water vapor
Answer:
The trees acclimate to the cold in the winter, but rapid temperature changes can still cause damage. New growth on trees and seedlings are more vulnerable to freezing damage. If a cold snap comes in the spring after new buds begin to grow, they can be killed.
Explanation:
(B) BB × Bb
(C) BB × bb
(D) Bb × bb
(E) none of the above
The set of Bb × Bb genotypes represents a cross that could produce offspring with silver fur from parents that both have brown fur. The correct option is A.
An organism's genotype is made up of all of its genetic components. The alleles or variations that an individual carries in a specific gene or genetic region are also referred to as the genotype.
The clinical presentation of a patient is the observable expression of this genotype, or phenotype.
The brown fur gene (B) is dominant over the silver fur gene in minks (b).
The parents' phenotypic is brown, which indicates that they have at least one allele for brown fur (B).
While both parents have brown fur, the "bb" gene produces silver fur. The genotype "Bb" is shared by both parents, who are heterozygous.
Thus, the correct option is A.
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cell membrane?
Answer:
Water channel proteins are helps the molecules move through a cell membrane.
Explanation:
this protein acts like a pore in the membrane that lets water molecules or small ions through quickly. This proteins (aquaporins) allow water to diffuse across the membrane at a very fast rate. Ion channel proteins allow ions to diffuse across the membrane.
Answer:
Gated Channel protein
Explanation:
Plants are not able to directly use atmospheric nitrogen. It must be converted into different form through a nitrogen cycle. In the process of nitrogen fixation, nitrogen fixing bacteria converts atmospheric nitrogen into ammonium. In the process of assimilation, plants incorporate ammonium into proteins.
Some legumes have a symbiotic relationship with bacteria that live in their root system. These bacteria are called Rhizobia and have the ability of nitrogen-fixation.