Which of the following is true of testicular cancer?
A. An undescended testis faces small risk of cancer.
B. It can be detected with the help of a Pap test.
C. Its cause has not been ascertained yet.
D. Every lump in the testes is cancerous
C. Its cause has not been ascertained yet.
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The endoplasmic reticulum
a. is found in both a rough and a smooth form. b. is the inner membrane of the mitochondria. c. is responsible for packaging proteins for transport. d. manufactures ATP. e. is found in the nucleus as well as in the cytoplasm.
In cyclic photophosphorylation, the electrons
a) return to chlorophyll. b) are incorporated in NADPH. c) are converted to ATP. d) are converted to glucose.
Which of the following hominin species was the first to leave Africa, it's fossils date from 1.9 to 0.2 mya, and it had a similar anatomy to our species?
A. Home floresiensis B. Home erectus C. Sahelanthropus tchadensis D. Australopithecus afarensis
Cross between parents that differ in only one trait.
What will be an ideal response?