Two species of frogs mate with each other. The embryo dies after a few cell divisions. What kind of reproductive isolation does this example represent? A. temporal isolation B. mechanical isolation C. postzygotic isolation D. gametic isolation

An adaption is a change that occurs over time naturally within a population due to environmental influences. Which of the following is not an example of a beneficial adaptation? A. Neck elongation of women using weighted rings in tribal Africa B.

The half life of an element is 14 years how many years old The rock will be after two half-lives

Which statements describe examples of how science and technology benefit Society? Check all that apply The publication of a study confirms the existence of an earthquake fault line The creation of new oil fracking methods reduces gasoline costs at

A pea plant with yellow seeds is cross with a pea plant with green seeds. all of the off spring have yellow seeds.

Dehydration can be a concern in the elderly population. the modified myplate for older adults recommends eight glasses of water per day. what is the ai for water for a 65-year-old male?

How many ribose molecules are found in ATP?

Would a person be squashed by extreme gravity, float with ease, freeze, burn up, or something else

According to "Life Without Gravity," why can astronauts' muscles become weak? A. Without gravity, the blood is rerouted from the legs to the head. B. Without gravity, the body "grows" by as much as several inches. C.

What type of igneous rock has two distinct grain sizes indicating two stages of cooling

A certain type of diploid organism has 38 chromosomes. how many chromosomes would a gamete of this organism have?