AP short timed practice 1
Once you begin, you will have 9 minutes to complete the quiz.
Select your name from the list.
O + CO
(sorry for the poor super and subscripts) The equation above shows one of the reversible reactions that occur in blood. After exercise, an athlete's blood pH has dropped below the normal level. How will normal blood pH be restored?
An increase in sweating will lead to a decrease in OH
An increase in temperature will lead to an increase in H
An increase in O
concentration in the plasma will lead to an increase in H
An increase in breathing rate will lead to a decrease in blood CO
If ATP breakdown (hydrolysis) is inhibited, which of the following types of movement across cell membranes is also inhibited?
Movement of oxygen into a cell
Movement of water through aquaporins
Facilitated diffusion of a permeable substance
Passage of a solute against its concentration gradient
A group of mice was released into a large field to which no other mice had access. Immediately after the release, a representative sample of the mice was captured, and the fur color of each individual in the sample was observed and recorded. The mice were then returned to the field. After twenty years, another representative sample of the mice was captured, and the fur color of each individual in the sample was again recorded. Which of the following best explains the change in the frequency distribution of fur color phenotypes in the mouse population, as shown in the figures above?
Sexual selection led to increased mating frequency of black and brown versus gray and brown
The gray mice were hardest to capture and so were underrepresented in the twenty-year sample
The allele for gray fur color is unstable, and over twenty years most of those alleles mutated to become alleles for black fur.
The field was composed primarily of light-colored soil and little vegetation, affording gray mice protection from predators
A dog is following the scent of a jackrabbit. Which of the following accurately describes how the dog's brain integrates information for smell?
Chemoreceptor cells in the nasal cavity send impulses to the appropriate area of the brain.
Chemoreceptors in the brain send impulses for smell in the nasal cavity
Chemoreceptors on epithelial cells of the tongue send hormones to the appropriate area of the brain
Receptors originating in the nose send action potentials to the motor regions of the brain.
The processes illustrated in the models depicted above all result in which of the following?
horizontal gene transfer
an increase in genetic variation
an increase in chromosome number
Please select the leter based on the figure...it's a little confusing. If the one you like is the cladogram labeled
"D," click the letter where "D" is the answer...
Data regarding the presence (+) or absence (-) of
five derived traits in several different species are
shown in the table below.