Dissolved food enters the bloodstream to feed body cells through the___of the small intestine.

A. Alveoli

B. Bronchia

C. Cilia

D. Villi

Explain how human activity can impact the limiting factors of river ecosystems.

Definition: this is the process of forming a specific consequence from general observations.

How would homeostasis be affected if bones were only made of spongy tissue

An example of a communicable disease is: a. cancer b. chronic respiratory disease c. diabetes d. giardiasis

How torchlights can indicate the presence of oxygen in the cave? How does the torch function?

1. Explain how P - and S-waves are different.

What is the purpose of engineering the citrus tristeza virus?

Researchers use experiments rather than other research methods in order to distinguish between

4. Shows each line represented as a pair of shared electrons but is not truly three-dimensional: 5. Shows three dimensions but no interior bonds: 6. Is used in kits and shows a general shape:

Which statement best describes an independent variable? A-The variable that responds to change in a investigation B - The variable you can change in an investigation C - The effect in a cause/effect relationship D - The factor that can never change