What challenges did early plants face living on dry land?

Viruses need host cells to replicate true or false

A population of 1,000 birds exists on a small Pacific island. Some of the birds are yellow, a characteristic determined by a recessive allele. The others are green, a characteristic determined by a dominant allele.

How is biodiversity measured?

How are you similar to your parents? in biology

Explain why changing the number of electrons has no effect on the mass?

Which statement about the Internet is correct? Select the best answer from the choices provided. A.) It is completely banned by China and other repressive regimes. B.) It can bring greater political freedom to oppressive regimes. C.

Write a one - to two-paragraph summary describing cloning. (cloning of animals)

There's a good evidence that a meteor hit earth about 65 million years ago which of the following events that the scientist think were triggered by the impact could have caused the Simultaneous global extinction of multiple species including all of

What is a variable? A. A statement that explains a phenomena and can be tested. B. An educated guess used in an experiment. C. Something that must be kept constant in an experiment. D. A value or characteristic that can take different values.

Events that damage the cell's regulatory apparatus, trapping it in the G1 phase of the cell cycle, cause the uncontrolled division of cells called