Which statement best describes the earliest ancestors of plants?

A. They had no competition.

B. They were vascular.

C. They had seeds.

D. They lived in water.

What factor is a characteristic of passive transport?

What result from successive mutations of the same gene

According to the International Union for Conservation of Nature and Natural Resources (IUCN), 73% of species have become extinct, endangered, vulnerable, or rare because of? a. chemical pollution of water and air b. stratospheric ozone depletion c.

Probability there are four basic blood groups: o, a, b, and ab. ordinarily, anyone can receive the blood of a donor from their own group.

Colorblindness is more common in males than females because?

3. Describe the directionality of RNA polymerase action. Include the terms: DNA template strand, DNA coding strand, DNA noncoding strand, mRNA, codons, 5'-3' and 3'-5'.

For the following true/false items, mark "A" for true and "B" for false. 61) Sympathetic pathways have very long post-ganglionic fibers. 62) Parasympathetic pathways have a ganglion very close to the target organ.

Compare and contrast the ways of life of crustaceans and arachnids and explain how their body forms are adapted to their environment.

What happens when no oxygen is present after glycolysis?

The process by which organisms best suited for the environment survive is called