What would most likely occur if an experimental design specifies only a test group?
The experiment will lack a control.
The experiment will lack a purpose.
The experiment will not be repeatable.
The experiment will not have variables.

Many kangaroo rats live in the sonoran desert of the southwestern united states. they have a variety of adaptations for living in the desert. under which circumstance would the kangaroo rats of the sonoran desert be most likely to develop new adaptations by natural selection?

The kind of fertilization found in the majority of aquatic animals is (internal or external) fertilization.

Which of the following is a common response to cell signaling?