Based on your experience in the simulation, what do the numbers 3 and 4 refer to in 3NH4?

Dr. Roberts examined the cells of four different organisms for the presence of various cellular structures. His observations are recorded in the table below. (An "X" indicates that the structure is present in the cell.

What are red blood cells and what do they do?

How do the number of electrons in the second energy shell of an atom change going across period 2 in the periodic table? A. Atoms in period 2 do not have a second energy shell, instead the first energy shell increases in electrons from left to right.

Which effect of mining for resources most directly impacts the biosphere? A. Releasing dust into the air B. Increasing erosion of soil C. Adding sediment to waterways D. Degrading habitats for animals

What hypothesis were scientist trying to prove by conducting the Fox Farm Experiment?

Proteins attract water and hold it within blood vessels, preventing it from freely flowing into the spaces between the cells. this is an example of how protein is used for: a. maintaining fluid and electrolyte balance. b. building antibodies. c.

Identify the fuel that could be classified as a nonrenewable or renewable resource. A) biomass B) geothermal C) wind D) tidal

Water is essential for life. Its special properties make water the single most important molecule in plant life. Which of the following properties of water enable it to move from the roots to the leaves of plants? a:Water exhibits cohesive behavior.

Whats the process of Asexual Reproduction for Komodo Dragons?

As you add drops of water to the surface of the penny, each drop sticks to the other water droplet forming a large drop on top of the penny. This is caused by which water property? Question options: adhesion cohesion capillary action