What cell is haploid?
A. oogonium
B. zygote
C. spermatogonium
D. primary oocyte
E. ovum
Answer: E
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Sperm-carrying fluid from the human male is
A. called semen. B. released on a twenty-eight-day cycle (approximately). C. stored in the urinary bladder. D. described by two of these answers.
Why is satellite DNA able to be isolated from other DNA in a density gradient? What is cryptic satellite DNA?
What will be an ideal response?
At this time, EIA tests are too difficult for routine diagnoses
Indicate whether the statement is true or false.
While on a hike, you notice that several burrs have become attached to your socks. You quickly pull them off. Inside the burr are several seeds. Burrs are produced by certain plants and frequently catch on animal fur (or people's clothing)
After thinking about it, you decide that the burr is a type of ________ that is an adaptation for ________. A) leaf...protecting plants from herbivores B) fruit...seed dispersal C) cambium...seed protection D) pollen grain...successful pollination