Which statement is true about continuous variation?
a. The fewer genes and the more exposure to the environment the more continuous variation
b. The fewer genes and the more exposure to the environment the less continuous variation.
c. The more genes and the more exposure to the environment the less continuous variation.
d. The more genes and the less exposure to the environment the more continuous variation.
e. The more genes and the more exposure to the environment the more continuous variation.
e
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Two different species are crossed and the second generation (F2) illustrates reduced fitness. This is an example of
____.
a. behavioral isolation b. gametic isolation c. hybrid breakdown d. crossing over e. hybrid sterility
Bacteria captured by white blood cells are collected in vesicles and destroyed by ____
a. smooth ER b. peroxisomes c. Golgi bodies d. ribosomes e. lysosomes
Because thaumarchaeote archaeons reduce CO2 in their environments to produce organic compounds and also oxidize inorganic substances to gain energy, they are:
A. chemoautotrophs. B. chemoheterotrophs. C. photoautotrophs. D. photoheterotrophs.
Which of the following will eventually
produce a mature pollen?
a. megaspore b. microsporangium c. microspore d. female gametophyte e. megasporangium