Which evolved first?
a. prokaryotes c. eukaryotes
b. organelles d. mitochondria
A
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During orgasm, which of the following stimulate a
feeling of pleasure? a. LH b. endorphins c. testosterone d. oxytocin e. all of these
Is there a relationship between the problems encountered cloning mammals and the rarity of polyploidy in this group?
What will be an ideal response?
What type of fungi are obligate symbionts with plant roots and played a key role in the colonization of lands by plant?
A. chytridiomycetes B. microsporidians C. zygomycetes D. blastocladiomycetes E. glomeromycetes
Advantages to living in a social group for an animal include all of the following EXCEPT
A. help in predator avoidance. B. help raising young. C. spread of illness and parasites. D. group food gathering.