Many functions in the body are controlled by
special compounds. Which statements about
these compounds do you think are true? Check all
that apply.
The body can make all of the compounds it
needs.
The body gets energy from some compounds.
Some compounds determine physical
characteristics.
DONE

Name the plastid and pigment likely to be found in the cells of (a) petals of sunflower (b) ripe tomato.

1. variations in a population of moths allow for some of its members to be able to adapt to environmental changes. the better adapted of the moths will be able to survive the change and thus prevail as the “fittest” of the species. (a) describe three mechanisms in which variation can occur within a species population. (b) explain which mechanism or mechanisms would be responsible for the survival of a population of peppered moths better than white moths in an environment affected by industrial soot. justify your answer.

Aprocedure done under controlled conditions to test a hypothesis is an inquiry.