BIOLOGY MIDDLE SCHOOL

What is semen? a) an exocrine gland near the opening of the urethra
b) the testes located on the outside of the male body
c) a combination of sperm and other reproductive fluids
d) a production of fluid that gives the sperm nourishment

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Answers

Answer 1
Answer: I think the answer is c

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HIGH SCHOOL

How do white blood cells help maintain homeostasis in the body?

Answers

The white blood cells maintain homeostasis in the body as they protect it from different pathogens. They protect the body from different viruses, bacteria, etc. and keep it healthy.

What is blood?

Blood is the combination of both cells and plasma; the cell parts consist of red blood cells, white blood cells, and platelets. The red blood cells play an important role in gas exchanges and keep the cells oxygenated.

The white blood cells consist of lymphocytes such as B lymphocytes, T lymphocytes, macrophages, eosinophils, basophils, neutrophils, etc. All these cells play an important role in the body's immune system. The neutrophil is the first to go to the site of infection, followed by macrophages. The B and T lymphocytes are adaptive immune cells, and they get activated after they come across the pathogens. The platelets are responsible for the blood clotting; they stop the blood loss.

Hence, in this way, the white blood cells regulate the body's immunity by encountering pathogens and maintaining homeostasis.

Find out more about blood here.

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White blood cells help maintain homeostasis in the body by fighting off pathogens and other foreign objects that enter the body.
HIGH SCHOOL

Which of the following is NOT a characteristic of animals? A. Multicellular body structure B. Composed of cells with cell walls C. Hetertrophic food getting pattern D. Composed of eukaryotic cells

Answers

B. Composed of cells with cell walls.
This is a characteristic of plants, not animals.
B. Plant cells have cell walls, where animal cells only have cell membranes.
MIDDLE SCHOOL

How do eukaryotic plant cells store and remove waste materials?

PLEASE HELP ME!!!

Answers

Well vacuoles store food and water, but I don't remover what removes waste materials, sorry :(
HIGH SCHOOL

Discuss mechanisms of disease transmission and processes of infectionss

Answers

Diseases have multiple ways of infiltrating your body. Diseases can be transported through blood, air, and physical touch. Once the disease has infiltrated the body, it can spread through out the body in many ways. One of which is by feeding off of other cells energy and reproducing. The pathogens travel through the blood and irritate cells. The irritation of cells can cause the body to consume more energy, to repair the damage. This causes symptoms like tiredness, regurgitation, and sometimes in extreme cases, death. 
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