How many nucleotides are there in a codon?

Which is a reasonable statement about the asteroid impact 65 million years ago A. It caused birds to evolve from dinosaurs B. Surviving organisms were able to diversify and spread C. This event immediately increased biodiversity D.

What causes the volcanic activity in the mid atlantic ridge A. Magma, or hot rock, being forced up within the mantel B. Hurricanes C. Earthquakes D. Tsunamis E. Tornadoes

Which options describe Darwin's theory of natural selection? Select all that apply. Natural selection results in descent with modification. Evolution occurs because of natural selection. Natural selection occurs because of evolution.

What is the name of the process that scientists use to solve problems?

In seed plants, what is an important difference between gymnosperms and most angiosperms? A. Gymnosperms rely on animals to carry pollen from the female gametophyte to the male gametophyte, while angiosperms rely on wind. B.

Which of these statements is correct about a theory? It cannot be contradicted. It is accepted by a few scientists. It does not explain observations. It can be changed by current evidence. i think its D but im not sure

3. Which organelles would exist, in higher numbers, in the following types of cells? a. White Blood Cell house b. Cardiac Muscle Cell House

Which layer of the atmosphere does all weather take place?

A salt is added to a solution of water. Which physical property of the water is most likely to change?

When the moon is between the Earth and Sun it cannot be seen and is called a ___ moon.