Which of the following describes how an abiotic factor can impact the population dynamics in an ecosystem

Aresearcher is studying the science of attractiveness and asks volunteer test subjects to rank what trait they find most attractive in a person what type of variable is the dependent variable in this experiment

What part of the cell does 9 represent? a. cytoplasm b. lysosome c. ribosome d. centrosome

18. over time, how do sand dunes tend to migrate? a. perpendicular to the movement of the wind b. in the same direction as the wind blows c. toward the wind d. in random directions