What evidence is there that viruses are alive?

The 5-week-old human embryo has external gill slits (grooves). they do not develop into gills, so what happens to them?

Which of the following best describes the mantle A) the mantle has properties of liquids only. B) the mantle has properties of solids only. C) the mantle has the properties of gases and liquids only.

The idea that all living things are made of cells, that all life processes take place in cells, and that new cells come from existing cells is known as

An area within the nucleus that appears through the microscope due to the densely stained chromatin fibers where ribosomal rna is being produced in high quantities.

Free energy in the cell creates disorder. Cells harness free energy to drive unfavorable reactions by using Activated Carrier Molecules. Which of the following act as carrier molecules in cells? A. AMP B. NADPH C. FAD D. ATP E. All of the F.

Investigator Smith is convinced that he has found a gun used in two shootings. When compared under the microscope, the two bullets do not seem to match up.

Has many sets of pipes controlled from several keyboards, including a pedal keyboard.

He inflammation of the prostate gland is called

L is for pricly leaves l is for smooth leaves What are the possible genotypes of an organism with pricly leaves? Choose all that apply. Question 8 options: ll l LL Ll

Describe the changes in Earth's biodiversity over geologic time scales, including mass extinctions.