Facilitated diffusion and active transport
A. both transport molecules into or out of a cell.
B. are both not very specific as to which molecules are transported.
C. both require a concentration gradient to function.
D. both require an expenditure of energy in order to transport the molecules.
E. both require a concentration gradient to function AND both require an expenditure of energy in order to transport the molecules.
A
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Eusocial animals are those that ________
a. live together for generations and have a reproductive division of labor b. typically display altruistic behavior c. nest in colonies but live separately the rest of the year d. associate with others of their species only for breeding
Which stage of development carves up the zygote’s cytoplasm?
a. gamete formation
b. cleavage
c. gastrulation
d. organ formation
e. tissue specialization
A homozygous milk chocolate Easter bunny is crossed with a homozygous dark chocolate Easter bunny
Assuming dark chocolate is dominant over milk chocolate and the traits segregate according to Mendelian genetics, which traits will the offspring express? A) 3 dark to 1 milk B) 3 milk to 1 dark C) All milk D) All dark
Trichomes on plants are responsible for:a
preventing water absorption on leaf surfaces. b. deterring herbivores. c. absorbing salts absorbed from the air. d. the waxy structures on the petiole. e. facilitating gas exchange.