A history of repeated chronic infections due to an acquired B-cell deficiency and decreased antibody production and/or function is usually indicative of

Answers

Answer 1

Answer:

Answer:

Common variable immunodeficiency disease (CVID).

Explanation:

CVID (Common variable immunodeficiency disease) is a medical disease in which the body suffers from the antibody deficiency. The body get easily attacked by the pathogens in this disease.

The chronic infections get repeated in this disease. The B cell deficiency causes the decreased or non functional antibodies in CVID. Genetic mutations are responsible for this disease.

Thus, the answer is Common variable immunodeficiency disease (CVID).

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Which statement is true of a placenta?a. The placenta passes oxygen, nutrients, and other useful substances from the fetus to the mother. b. The placenta passes oxygen, nutrients, and other useful substances from the mother to the fetus. c. The placenta mixes blood from the mother and fetus together. d. The placenta protects the mother from being attacked by the fetal immune system.

What would happen to a freshwater protozoan if removed from its normal habitat and placed into a saltwater pool?

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the protozoan would shrivel up if it didn't have a way 2 replace it (please vote me branliest just one more 4 virtuoso)

Answer:

(For USATestprep) A. Loss of water through osmosis.

Explanation:

Loss of water through osmosis is what would occur. The protozoan would shrivel up, if it did not have a way to replace freshwater in its cells.

(Answer and explanation from USATestprep)

The best way to gain weight is to increase your _______ intake.a. protein
b. mineral
c. fat
d. carbohydrate

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Yes, c because you can cross out protein because thats healthy and you cant really increase carbohydrate and c fat is the most unhealthy one so. and also fat is what makes you gain weight say theres to much "fat' in food.t

which of the following countries according to amnesty international, responsible for exceeding 3400 people (80% of all executions globally)? a.china b.south korea c.japan d.community

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I believe the correct answer is D. the community

This mammal retains its embryo in its uterus for the full term of the pregnancy. Which mammal is it most likely to be? A. Bat B. Koala C. Kangaroo

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Out of the choices given, the mammal that retains its embryo in its uterus for the full term of the pregnancy is the bat. A koala and the kangaroo both carry their babies to term in pouches.

Answer: A. Bat

Placental mammals are those mammals which provides the placenta for the complete development of fetus. Bats are placental mammals which retains their embryo in it's uterus for the full term of the pregnancy, whereas Koalas and Kangaroos are marsupials. These mammals develop in the uterus initially, then transfers the underdeveloped fetus to the pouch where the development further continues.

A frog has more offspring that can survive on available resources. Which is an example of?

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Answer:

they likely mean adaptation

What important idea from Thomas Malthus inspired Darwin?

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Not 100%, But in my biology class we discussed this at the beginning of the year. Darwin believed in survival of the fittest. Thomas Malthus believed that there are a lack of resources (food) because of over population.

Darwin harbour was discovered in 1839 by capitan of the beagle jonh lort stlke , who named it after a former shipmate , british evolutionary of charles darwin

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