Which key morphological feature is used to classify organisims as mammals?

a. the presence of fur

b. mammary glands

c. two-legged upright posture

d. fertile offspring

Nutation causes the following to occur.

Zygote in monkeys zygote in humans egg cell in monkeys

Which describes the greenhouse effect

How is the Sun's energy passed along in an ecosystem?

A brain tumor caused extensive damage to mr. macdonald's hypothalamus. itis most likely that he may suffer a loss of:

In everyday life, a theory is an educated guess. In science a theory is

How can invasive species result in changes in other populations?

the classes are playing tug of war. Mrs. Larson's homeroom pulls with a force of 50N. Ms. Mitko's homeroom pulls with a force of 45 N in the opposite direction. What is the net force? And who won?

The synaptic cleft is the area between the a. soma of one neuron and the dendrite of another neuron. b. axon of one neuron and the dendrite of another neuron. c. axon of one neuron and the soma of another neuron. d. somas of two neurons.

When the blades of a fan move, they have mechanical energy. This mechanical energy comes from A. electrical energy flowing into the fan from the wall outlet. B. sound energy flowing into the fan from a radio. C.