Identify the environmental factor that is formed by an attractive environment.

Most scientific questions are based on opinions. hypotheses. observations. experimental data.

How is the male reproductive system different from other body systems? it isn’t necessary to vital signs. it monitors other body systems, and adjusts if necessary. it transports items from one system to another. it is the only system that produces hormones in the male.

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.