The extraembryonic membrane closest to the embryo is the:a
amnion.
b. archenteron.
c. chorion.
d. blastocyst.
e. neural plate
A
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Leopard seals feed on emperor penguins, which feed on secondary consumers. Which trophic level would the leopard
seal occupy in this food web?
a. decomposer b. detritivore c. primary consumer d. primary producer e. quaternary consumer
In an antibody- mediated immune response,
what causes effector helper T cells to release cyokines?
a. binding to antigen presenting dendritic cells b. binding to a bacterial complement c. binding to a naive helper T cell d. binding to a B cell e. engulfing a bacterium
You conduct an experiment in which you add increasing amounts of substrate to an enzyme solution
and then measure the resulting reaction rate. You graph your results, plotting the rate of the reaction on the Y-axis versus substrate concentration on the X-axis. What do you conclude from your graph? a. The reaction rate is directly proportional to substrate concentration. b. The reaction rate is independent of substrate concentration. c. The reaction rate increases but then decreases, forming a bell-shaped curve. d. The reaction rate decreases with increasing substrate concentration. e. The reaction rate increases with increasing substrate concentration up to a point, above which the rate remains constant.
What is the difference between an autosomal dominant and autosomal recessive pattern of inheritance?
What will be an ideal response?