Imagine a chart showing the number of people in different age groups (0 to 5 years old) as blocks in proportion to the number of people in each age group
If each of these age blocks is shown stacked with the youngest at the bottom and the oldest at the top, what shape will the whole stack assume when there is a rapid population doubling time? A) expanding pyramid
B) uniform column
C) inverted pyramid
D) hourglass
A
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The study of body plans and structures among groups of organisms is called
a. homologous structures. b. analogous structures. c. comparative morphology. d. morphological convergence. e. morphological divergence.
A farmer performs truncation selection to try to increase the weight of peaches in his orchard. Which statement correctly describes a possible outcome of this selection?
A) If peach weight is not heritable, the average weight in the next generation will increase. B) If peach weight is heritable, the average weight in the next generation will increase. C) The average peach weight will decrease due to this inbreeding. D) If peach weight is heritable, the average weight in the next generation will decrease.
Why do freshwater fish die in salt water
What will be an ideal response?
Mitochondrial inner membrane transmembrane proteins are inserted into the inner membrane
a. directly from the matrix into the lipid bilayer. b. through Tim. c. through Tim and Tom. d. through a transporter called Oxa1.