Studies of the ionic basis of the action potential in squid giant axon found that a. decreasing potassium outside the cell increases the size of the action potential. b. decreasing sodium outside the cell increases the size of the action potential. c. decreasing potassium outside the cell decreases the size of the action potential. d. manipulating sodium has large effects on both the size of the action potential and the resting membrane potential. e. decreasing sodium outside the cell decreases the size of the action potential.

Which image shows labeled organelles that are present only in plant cells?

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?

During crossing-over, a. genetic material is exchanged between nonsister chromatids, resulting in new combinations of alleles. b. nonsister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. c. one homologous chromosome of a tetrad is exchanged with another tetrad, resulting in new combinations of alleles. d. sister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. e. genetic material is exchanged between sister chromatids, resulting in new combinations of alleles.