Answer:
is a result of the absence of macrophages or B cells.
Explanation:
Severe combined immunodeficiency (SCID) results due to the absence of macrophages or B cells that is responsible for the immunity of our body. Severe combined immunodeficiency (SCID) is an inherited immunodeficiency disease (PIDD) that presents in infancy results in a weak immune system that is unable to fight against even mild infections so due the absence of macrophages or B cells, the body is vulnerable to diseases.
Answer AND Explanation:
The seminal vesicle produces an alkaline fluid which contains nutrients for the spermatozoa. Near this point is situated the prostate gland whose secretion is alkaline to neutralise the vaginal fluids. It also activates the sperms. The cowper's' gland secretes alkaline fluid that neutralises the acidity along the urethra. All the fluids combine with the spermatozoa from the vasa deferentia to form semen.
Answer:
10.5minutes
Explanation:
DRT = 90%
Cells present = 10^6
Autoclaving = 1.5 minutes
Solution:
10^6(1.5)10^5(1.5)10^4(1.5)10^3(1.5)10^2(1.5)10^1(1.5)10^0(1.5)0=10.5
it would take it approximately 10.5 minutes to kill 10^6 of the cells.
If i should stop the heating process at 9 minutes this would have effect on some of the microbes as they are still present with 1 bacterium left which makes it not efficient.
XR
Answer:
Photosynthesis is the process by which green plants prepare their own food. They prepare their own food because they have chlorophyll in them.
Example: green plants like flowering plants, red algae, etc..
Consumers are the organisms that consume this food prepared by the plants. They cannot prepare food by itself. They don't have chlorophyll so they cannot prepare their own food.
Example: human, animals, plants that does not have chlorophyll, etc..
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