Which statement describes the role of xylem in vascular plants

What contracts to pump blood out of the heart? the atria the veins the ventricles the arteries

The fingerlike projections on the surface of the cell are called cilia and are used in which of the following processes?

Why are controls needed in a case-control study? A. They increase the size of the study so that risk estimates are significant B. They are less likely to have recall bias issues C.

How is a scientific law different from a scientific theory? O A. A theory becomes a law after a long period of time has passed. B. A theory is why something happens and a law is how something happens. OC.

Period of pregnancy in which intense cellular division a specialization take place

If ice we're, like most other substances, more dense than it's liquid form, what would this mean for bodies of water that freeze in the winter? What would happen to the organisms that live in them?

give three examples of a stimulus and a possible response in humans

An acute staphylococcal infection with blister-like lesions containing millions of virulent bacteria is known as

Which of the following regions will be least affected by rising sea levels do to global warming? 1. Island nations 2. Arctic Climates 3. Coastal regions 4. Inland forested regions

The plasma membrane controls what enters and leaves the cell