What are the parts or processes that can describe an ecosystem?

O A) chemical changes

OB) flow of energies

C) both chemical changes and flow of energies

OD) neither chemical changes or flow of energies

All but one factors plays a part in water movement in and out of the cell

Before meiosis begins, chromosomes duplicate, making chromosomes that have sister chromatids. Which step is this? A. prophase B. telophase C. interphase D. metaphase

What unit of time on Earth is based on the revolution of the Earth around the Sun?

Why does oceanic lithosphere subduct while continental lithosphere does not

Limb structure of a pig and a calf is?

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.