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Verdich [7]
3 years ago
13

Which of the following would be a virulence factor of a pathogen?

Biology
1 answer:
olga_2 [115]3 years ago
3 0

Answer:

The correct answer is option - a surface protein allowing the pathogen to bind to host cells

Explanation:

Virulence factors are substances or molecules released by pathogens such as bacteria, fungi, viruses and protozoa that enhance their function effectiveness and enable them to get the following-

Attachment to host cell and surface.

Evasion of the immune response of the host.

Suppression or inhibition of the immune response  of host.

Getting nutrition from the host cells

Thus, the correct answer is option - a surface protein allowing the pathogen to bind to host cells.

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Which is a malignant disorder of mature antibody-secreting B lymphocytes or plasma cells? Multiple myeloma Hairy cell leukemia A
Lorico [155]

Answer:

The correct answer is Multiple myeloma.

Explanation:

Multiple myeloma is a type of bone marrow cancer caused by a malignant degeneration of plasma cells. Normal plasma cells are part of the immune or immune system, responsible for dealing with infections and diseases of external origin. Plasma cells are normally found in the bone marrow, mixed with other cells of the immune system and with the cell-producing cells of the blood. When there is an infection, the B lymphocytes respond, become plasma cells or plasma cells and produce antibodies (also called immunoglobulins) that help the body fight infection. T lymphocytes respond with various transformations that allow them to directly attack infectious agents or help other types of cells defend the body.

3 0
3 years ago
What problems would you expect to observe in an ecosystem without producers?
Len [333]

hi! producers are the main source of energy for consumers because they turn sunlight into chemical energy. without producers, no ecosystem would be able to survive because consumers would no longer have energy needed to live. hope this helps!

4 0
3 years ago
What are the answers here? Select all that apply.
Kitty [74]
Second , fourth and last
8 0
3 years ago
Read 2 more answers
A student collects a sample of water from a pond near her home. She
son4ous [18]

Answer:

A. Each organism had a different parent that passed on a set of unique genetic instructions.

Explanation:

Organisms can either be single-celled or multicellular. According to this question, a student collects a sample of water from a pond near her home. She then examines a drop of the water under a microscope and noticed it contains four very differently shaped single-celled organisms.

The single-celled organisms are of different shapes because they are from different parents, which passed on a set of unique genetic instructions via their genes to them. Organisms of the same species from the same parent will possess the same shape because they contain same gene which makes them look and behave similar.

However, in this case, the four different shaped single-celled organisms are of DIFFERENT SPECIES and hence, contain individual unique genes that makes them so

7 0
2 years ago
N the United States and Canada, bats use one of two strategies to survive winter: They either migrate south, or they hibernate.
Serjik [45]

Answer:

Hyphae

Explanation:

It is given that the bat affected by fungus, Geomyces destructans (Gd) consists of delicate, white filamentous mat on their muzzles which could be possibly the hyphae.  

It is so because the hyphae is made of cells having tubular cell walls which more or less look like internal cross-walls having large pores to absorb nutrients from the surrounding environment (i.e bat’s body) and transport them to thallus. Hyphae are basically long thread like structures that spread throughout their food and release enzymes that break down the food  

4 0
2 years ago
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