Answer:
Part a: C)
Part b: A)
Explanation:
a heterozygous (Rr) and a Homogenous (rr)
Part a: C)
There is only one out of 4 (Rr) so 1/4
A)
Explanation:
Innate immune cells (e.g., dendritic cells and natural killer cells) are the first line of defence which HIV encounters upon entry to the body.
Macrophages. Tissue macrophages are one of the target cells for HIV. ...
Dendritic cells (DCs). ...
Natural killer (NK) cells. ...
Cellular immune response to HIV. ...
Humoral response to HIV.
B.) Water because snow, hail, and sleet are all water when melted.
Answer:
Explanation: ground water contamination is nearly
always the result of human activity. In
areas where population density is high and human
use of the land is intensive, ground water is especially vulnerable. Virtually any activity whereby
chemicals or wastes may be released to the environment, either intentionally or accidentally, has
the potential to pollute ground water. When
ground water becomes contaminated, it is difficult
and expensive to clean up.
To begin to address pollution prevention or remediation, we must understand how surface waters
and ground waters interrelate.
Most cells have a membrane, though some don't.