How many children have been born worldwide
from IVF?
a. 3 thousand
b. 3 hundred thousand
c. 3 million
d. 30 million
e. 300 million
C
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In sexual reproduction, two __________ fuse to form a __________
a. gametes; zygote b. eggs; embryo c. sperm; zygote d. gonads; embryo
Which of the following eukaryotic lineages contains species that all lack functioning mitochondria?
A) Excavata B) Rhizaria C) Amoebozoa D) Stramenopila
A subordinate animal in a dominance hierarchy has limited access to food and mates. The most likely reason he
remains in a social group that dominates him is because ____.
a. he is exhibiting altruistic behavior b. his chances of survival and reproduction are better in the group than alone c. he expects to become dominant in the future d. he does not know that it would be an advantage for him to leave e. dominant group members will not allow him to leave
A typical human body has ____ skeletal muscles
a. 78 b. 168 c. 206 d. 417 e. over 600