Why can we treat flu symptoms with antibiotics, but not the flu itself? What would be affective against the flu?

How does a selectively permeable membrane affect diffusion? - All molecules move from a lower concentration to a higher concentration. - Only some molecules move from a higher concentration to a lower concentration.

Which of the following describes a way in which bacteria are harmful to humans? A. Some vitamins, such as vitamin K, are made by bacteria in the human gut. B. Some common foods, such as yogurt and Swiss cheese, are made using bacteria. C.

What is the word that means within the cell, such as referring to signals moving from one place to another within the cell?

Where are photosynthetic organisms least likely to be found?

Which statement is true about a solution that has a pH of 3? A. It is abnormal. B. It is acidic. C. It is alkaline. D. It is neutral.

What are two causes of blood pressure changes that might occur in a person within a given day?

What type of plant cells does most photosynthesis occur?

Life cycle of tobacco mosaic virus

How do producers differ from all other organisms in an ecosystem? A. All other organisms rely directly on the sun for energy. B. Producers are the only group capable of making their own food. C.

The same reptile known as a river turtle in illinois is called a cooter in florida. This language phenomenon is classified as