Answer:
A.) Cell A
Explanation:
This is bc it has the smallest space.
Hope this Helps
I’m sure it is D I just took the test
Hello, I figured your question was missing its options so I went online to find them. Here they are:
The process of phagocytosis involves all of the following EXCEPT
:
a. adhesion.
b. secretion of cytotoxins.
c. elimination.
d. vesicle fusion.
e. chemotaxis.
Answer:
The correct answer is: b) secretion of cytotoxins.
Explanation:
Phagocytosis is a mechanism performed by cells in which the plasma membrane engulfs a large particle. Phagocytosis is used by cells in the immune system to ingest pathogens like viruses and bacteria.
Phagocytosis consists of many steps:
- activation
- the phagocytes that were resting are activated in the inflammatory response when a pathogen enters the body.
- chemotaxis - this refers to the process in which the phagocyte moves to the pathogen by following the chemical factors released by these germs.
- adhesion - the phagocyte attaches to the pathogen.
- ingestion
/vesicle fusion - the phagocyte sends pseudopods to engulf the pathogen, and places it in a phagosome, which is an endocytic vesicle. The phagosome and the phagocyte will fuse so the pathogen gets inside.
- elimination - the pathogen is destroyed in the phagocyte by the lysosomes present in it.
<u>The</u><u> secretion of cytotoxins</u><u> is not a part of the phagocytosis, and is a process exclusive to </u><u>T cells</u><u> (leukocytes that lack the ability to phagocyte).</u>
Answer: false
Explanation:
The vessel will respond reflexively by stretching indicating vasodilation and also allowing an increase in the the blood flow to the vessel, in contrast to vasoconstriction which causes narrowing and decreased blood flow to the organ.
Answer:
C) Letter C because the emergence of a mature forest will resist changes to the ecosystem with the greatest success.
Explanation:
Ecosystem stability can be a factor of species diversity within a community. Which letter above would indicate the stage of success in an ecosystem that represents the greatest potential for stability and resilience?
A) Letter A because light levels are high and will promote the greatest growth of primary producers.
B) All letters represent equal opportunity for stability as the area of land does not change over time.
C) Letter C because the emergence of a mature forest will resist changes to the ecosystem with the greatest success.
D) Letter B because aspen, spruce, and pines can provide the most opportunity for primary consumers to hide from their predator species