If your Halloween costume is synthetic, that means it's made of

man-made material, like polyester

natural material, like cotton

expensive material, like silk

scary material, like spider webs

Define the term by-catch.

All organisms that are viviparous give many resources to their offspring as they develop in utero. this high energy and resource investment in the young means that they are k-strategists. true false

A student wonders weather removing the nucleus from a cell would result in a new prokaryote cell. why would this procedure fail to produce a prokaryotic cell?

Which fertizer element is of most concern environmentally?

1. Name three types of evidence used to support the theory of evolution Explain how scientists use each type of evidence to provide support for evolution. Give one example of each.

What is one of the most important factors in determining whether a chemical reaction will occur?

What is a alleles in biology?

Sex-linked traits are found on which chromosome?

Most scientists recommend reducing carbon dioxide emissions. Less carbon dioxide in the atmosphere would be expected to

What effect on the evolution of mammals was caused when the continents drifted apart?