T killer cell or Cytotoxic T cells are the cells in animals that are used to destroy bacteria and viruses after combining with lysosomes.
<u>Explanation</u>:
The T cells kills the bacteria and virus. The T cells can easily identify the pathogen when combined with the lysosomes. The activated T cells releases a material called perforin. This substance gets into the walls of the affected cell and punctures its walls. Due to hole in the walls, there happens discharge of fluid and electrolytes, which leads to the death of the cell. The substance secreted is the cytolytic proteins from the lysosome which helps in destruction of the infected cells.
Answer:
Chemical Fertilizers
C. Algal blooms followed by eutrophication is the correct one
Stockyard Runoff
Correct D. Increased biological oxygen demand/decreased dissolved oxygen
Soil disturbance
Correct A. Erosion, flooding; clogged shipping channels and harbors
Pesticides
Correct B. Reproductive failure, poisoning, and/or death (pollinators, pets, livestock, predators, children)
Explanation:
For industrial agriculture to be effective and productive today, we have to take into account many factors so our practices function in a good way. When it comes to chemical fertilizers, it is NOT a risk the Increased biological oxygen demand/decreased dissolved oxygen
, the correct risk is algal blooms followed by eutrophication. Regarding Stockyard Runoff it is wrong to think the algal blooms followed by eutrophication as risk, the actual risk is the increased biological oxygen demand/decreased dissolved oxygen. The risk in soil disturbance
is the erosion, flooding; clogged shipping channels and harbors and thinking about pesticides
, they are in risk for reproductive failure, poisoning, and/or death (pollinators, pets, livestock, predators, children)
.
Answer:
Fossil record, history of life as documented by fossils, the remains or imprints of organisms from earlier geological periods preserved in sedimentary rock. A brief treatment of the fossil record follows.
Explanation:
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Answer:
C.
Explanation:
The function of vacuoles in an animal cell is that the vacuoles store materials
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