VERY VERY EASY QUESTION. WILL MARK BRAINLIEST A marine biologist explains that salmon populations change over time because of differential reproduction. What is "differential reproduction"?

Some organisms in a population lay eggs, while others produce sperm.

Some organisms in a population produce more male offspring than others.

Some organisms in a population produce more offspring than others.

Some organisms in a population reproduce in rivers, while others stay in the ocean.

During the winter, this species of fox has white fur, but in the summer, it has brown fur. what environmental change may have lead to this fox's fur color? snow cover increase in sun's brightness volcanic eruption global warming

Hydrilla (hydrilla verticillata) is an invasive aquatic plant and one of the most serious aquatic pests in florida. hydrilla has already been introduced to hundreds of bodies of water throughout florida, hydrilla is difficult to control because it grows rapidly and survives in many different water depths and conditions. hydrilla • describe how hydrilla affects native plant and animal species. include both a biotic and an abiotic limiting factor. • suggest one biotic and one abiotic recommendation that could slow the spread of hydrilla

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell