8. Which of the following involves a situation in which a density-dependent factor influences a population?a. Several seasons passed during which rainfall was ample, winters were not severe and
food for snow hares was in good supply.
b. A hurricane severely disrupted a salt marsh and uprooted most of the marsh grass in an
estuary.
c. A forest fire on the north side of a mountain forced the white-tailed deer from the north
side to move into the range of the white-tailed deer on the south side of the mountain,
making food more scarce.
d. After a heavy rain, pesticides that were applied to a cotton crop to control weevils ran off
into a waterway that flows next to a field.
9. On ten acres of native forest there are eight white-tailed deer, seven coyotes, 45 armadillos, and 231 loblolly
pine trees. Which population has the highest density?
a. white-tailed deer
c. armadillos
b. coyotes
d. Toblolly pine trees

All veins are important because they carry blood throughout the body and all veins have a specific purpose/job to do to help the body function. Many veins take the deoxygenated blood...blood that doesn't have oxygen in them any more because it was used up...and transport it back to the heart where the heart pumps  the  deoxygenated blood  to the lungs to become oxygenated...oxygen is put back into the blood.

here are two of the many veins in the body:

- pulmonary veins and other veins involved with the heart system/the functioning of the heart

-systemic veins: I believe this also deals with the heart but it can also deal with veins in the upper part of our body (includes: head, neck/throat area and chest area I believe).  We also have veins in the lower part of the body (abdomen (area that contains organs/stomach area), legs, and whatever else falls under the lower part of the body.

I tried to keep this in simple terms from what I learned in biology. For example, within the veins in the abdomen there are more specific names to the veins and their function.

Answer:

The 2 types of behavioral adaptation are migration, and hibernation.

Explanation:

Adaptation of animal is the fitness towards its environment. If an animal can't adapt, it will perish with time. Adaptation may be genetic or acquired. But basically, adaptation is 2 types - physical adaptation, and behavioral adaptation.  

Physical adaptation includes the coloring of the body, camouflage activity of an organism. The behavioral adaptation is the respond of the organisms to their habitat. This includes hibernation, estivation, migration, etc.

Some animals are affected by the temperature difference of the environment. Therefore, they adopt some methods to survive in extreme temperatures.

The cold-blooded like amphibians hibernate during winter.  They undergo a long sleep during cold weather and become active in summer.  Similarly some animals like desert lizard active in the morning. When the temperature increase they burrow themselves under the ground. This is called estivation.

Birds migrate during the adverse season i.e. in winter. They temporarily go to a different place to spend the cold month and return during the advent of summer. This is one type of behavioral adaptation. They also migrate for better breeding ground and food.  

Some fishes also migrate for breeding and food.

Answer:

b

Explanation:

Answer:

D) Opposable Thumbs

Hope This Helps!    Have A Nice Day!!

D, opposable thumbs

Other organisms don’t

Answer:

Each parent passes half of there chromosomes to there child. DNA is passed down to the next generation. We get our traits from our parents, grandparents, and relatives. And a very low percentage of people get there traits from there great great great grandparents.