What is the theory of punctuated equilibrium?

a) It describes one way that new species arise.

b) It explains why mass extinctions occur.

c) It describes the rate of geologic time.

d) It explains how domestic animals evolved.

During mitosis, chromatin condenses into chromosomes, spindle fibers form from one end of the cell to the other, and centrioles organize the spindle fibers. Which stage of mitosis does this describe? A. Telophase B Anaphase C Metaphase D Prophase

According to the text, what happens when organisms cannot adapt to changes in their environment? A. They move to another environment. B. They risk dying out. C. Nothing happens. D. They wait for the environment to change again.

When you walk your dog your using energy from the sunlight to power this activity how?

The inscription on a marble gravestones become harder and harder to read over time. this is caused by? A. chemical weathering B. frost wedging C. evolution D. mechanical weathering

What region of Earth receives direct sunlight?

What component in our natural environment is not recyclable

What is some of the evidence behind the theory of evolution?

If a parent cell has 24 chromosomes and goes through meiosis, how many chromosomes will each daughter cell have

ATP is the nucleic acid that A. Transports energy B. Synthesizes proteins C. Stores genetic information D. None of the above

What four large islands make up the greater antilles in the west indies