Answer:
phenotypes
a. genotypes
A person's genotype refers to their genetic blueprint and it is fixed at conception. While A person's phenotype refers to the physical expression of their genetic code which can be altered by biological and environmental factors
Answer:
C. cell membranes
Explanation:
the black/dark material that is visible in many of these onion cells is cell membranes.
<span>Sensory systems provide information from outside the animal that, when integrated, shape behavior. Internal senses, such as hunger or fear, affect behavioral priorities. Motivation describes how animals make choices among possible behaviors, based on the strength of internal needs and sensory inputs.
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A histone is a protein that interacts with DNA to coil it into a nucleosome.
A nucleosome is a small unit of DNA coiled around 8 histone proteins.
Therefore, the major difference is that a nucleosome is a small structure and histones are the proteins that help form the structure.
Answer:
After 3 half lives 12.5 g of C-14 left
Explanation:
Given data:
Mass of C-14 = 100 g
After 3 half lives mass left = ?
Solution:
At time zero = 100 g
At first half life = 100 g/2 = 50 g
At second half life = 50 g/ 2 = 25 g
At third half life = 25 g/2 = 12.5 g
Thus, after 3 half lives 12.5 g of C-14 left.
