Why are there more tissues available for transplant than organs?
A) Tissues can be transplanted regardless of blood type, but the blood types must match between organ donors and recipients.
B) Nonhuman animals are the source of most tissue transplants, but organs for transplant must come from humans.
C) Tissues can be removed from living donors, whereas organs can only be removed from dead bodies.
D) Tissues can be frozen and preserved, but organs deteriorate quickly without nourishment from oxygen and blood.
D
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Tilling or plowing is a common agriculture practice that has been proven to have a profound impact on the nitrogen cycle. Tilling breaks up hard soils to ease the planting and germination of crops, and it also introduces more oxygen into the soil
Many fertilizers contain N in the form of ammonia because ammonia is readily absorbed and used by plants, while N in the form of nitrate is more mobile and is more easily lost from the soil. Based on your knowledge of microbial transformations of inorganic nitrogen species, what impact would you predict extensive tilling to have on the fate of ammonium-based nitrogen fertilizer? What will be an ideal response?
Answer the following statements true (T) or false (F)
1. Epstein-Barr virus is associated with several types of cancer. 2. Some cases of genital herpes are caused by the same virus that causes cold sores. 3. Smallpox virus, monkeypox virus, and chickenpox virus are all considered to be pox viruses. 4. Epstein-Barr virus is a type of herpes virus. 5. Genital warts can become malignant.
Protonephridia are found in ____
a. annelids b. mammals c. flatworms d. insects e. reptiles
What is being described? The monomers of nucleic acids
What will be an ideal response?