What is the independent variable (cause) is this experiment? "Which type of medium (soil or sand) is best for plant growth?"

Question 6 options:

type of medium (soil or sand)

height of plant

types of plant

amount of medium (soil or sand)

In the diagram below, the northern hemisphere would be in what season at position a a. fall b. winter c. summer d. spring

Agene pool: a) is the collection of all the alleles found in a single species b) is the collection of all the alleles found in a single population c) is the collection of all the chromosomes found in a single population d) is the collection of genes in a species that allow the individuals to swim

Number and variety of living organism; includes genetic, species, and ecological types