The na+-k+ atpase is a countertransport antiport carrier, which always requires energy.

Answer;

-The above statement is true

The Na+-K ATPase is a counter-transport antiport carrier, which always requires energy.

Explanation;

-The sodium-potassium (Na+-K) pump transports both sodium and potassium UP their concentration gradients in a process called active transport. Active transport involves the transport of Na+ from a place of low concentration to a place of higher concentration.

-Antiport is an Integral protein which moves two or more molecule types across the membrane in the opposite direction. while a symport is an Integral protein which moves two or more molecule types across the membrane in the same direction.

sexual reproduction produces offspring with novel combinations of genes. species that reproduce sexually must maintain two different types of individuals, males and females, which can limit the ability to colonize new habitats as both sexes must be present.