The older the rocks were the more like they were to have fossils.
Answer:
C) The benthic invertebrates would decrease in population size because they are eaten by the sea ducks and the phytoplankton would increase in population size.
Explanation:
The benthic invertebrates are eaten by sea ducks. Sea ducks are eaten by bald eagles. If the bald eagle was removed, there would be more sea ducks because they will have no more predators. Since there are more sea ducks, they will need to eat more food, like benthic invertebrates. The benthic invertebrates would have a lower population because the sea ducks eat more of them.
Why not the other answers:
A) The bivalves would not increase in population size. Without the bald eagle preying on sea ducks, there would be more sea ducks, who need to eat more food, such as eating more bivalves.
The phytoplankton would not decrease. With sea ducks eating more food, more benthic invertebrates are eaten. There would be less benthic invertebrates to eat phytoplankton.
B) Tundra swans were never eaten by bald eagles. There is no arrow connecting them.
D) Wading birds were never eaten by ospreys. There is no arrow connecting them.
Answer:
The correct answer will be-False
Explanation:
Calcitonin is a hormone produced by the parafollicular cells present in the thyroid gland.
The Calcitonin plays an important role in the human body as they reduce the level of phosphate and calcium in the blood.
The calcitonin is produced by the C-cells in response to the amount of the calcium levels in the blood as a high concentration of calcium cause release of calcitonin.
Since the calcitonin is involved in the regulation of calcium of blood and not bones therefore, false is the correct answer.
Answer:
Possible options are:
a. the microbe would survive inside the phagocyte
b. the microbe would be expelled from the residual body
c. the microbe would be killed by the lysosome's enzymes
d. the microbe would cause the phagocyte to go through apoptosis
Answer is A
Explanation:
If microbe were capable of preventing a phagosome from fusing with a lysosomes it means microbes would survive inside phagocyte.The bacteria survive inside of phagosomes because they prevent the discharge of lysosomal contents into the phagosome environment. Specifically, phagolysosome formation is inhibited in the phagocyte.
Answer:
Type II Hypersensitivity
Explanation:
Hypersensitivity reactions are exaggerated immune responses that are detrimental to the host and Type II Hypersensitivity is also known as antibody-mediated hypersensitivity.
This type of hypersensitivity reaction involves humoral immunity and it occurs when IgM or IgG antibodies bind to cell surface antigens which lead to complement activation or IgG/FcγR interaction.
Clinical manifestations of Type II hypersensitivity responses include trans- fusion reactions, hemolytic disease of the newborn, autoimmune reactions to cellular antigens or tissues and hyperacute rejection of transplanted tissue.
