In embryonic stage humans, birds and fish are similar in many aspects ... why?

Explain the relationship between mutation, natural selection, adaption, and extinction

Mitosis, itself, occurs in how many stages (including interphase) ? four five six

What is a possible cause of the decline in amphibians on the planet? A. pollution B. predators C. lack of water D. loss of land

Imagine you are surveying a population of a mountain range where the inhabitants live in the valleys with no inhabitants on the large mountains between.

Some salmon have been genetically engineered to grow more quickly. the salmon are raised in pens set in rivers or in the sea. decsribe how these salmon might impact society and the environment

Which fossil would look most like an ancient organism? * trace cast mold?

Hydrogen is in column 1 of the periodic table What information does this give us? There is one other element that hydrogen will bond with There is one neutron in the nucleus.

Most plant must draw resources from two very different environments. Explain this statement?

When is facilitated diffusion necessary? a. When the molecules are too large. b. When the molecules are insoluble. c. When the direction of movement is opposite to natural diffusion. d. none of the above

G1, S, and G2 are all phases of which part of the cell cycle? a. interphase b. anaphase c. prophase d. telophase