Some maerials can move across the cell membrane against a concentration gradient by

Which of the following is anther term for eruptions of gas on the suns surface a. nuclear fusion b. sunspots c. coronas d. solar flares

Each trait of a plant is determined by

I'm the entrance to the food tube. I chew the food up well

Other than genetic material, what is the other main component of a virus?

What is the role of dna

Which class of immunoglobulins sensitizes cells to allergens?

Which statement about somatic mutations is true? A. They exist in all the cells of the body. B. They are acquired through exposure to mutagens. C. They are inherited via sperm and egg cells. D. They are passed on to offspring.

In year three the farmer discontinue the use of the insecticide Which statement would best predict the population in generation 4

What happens to carbon atoms during cellular respiration or fermentation?

How are photosynthesis and chemosynthesis similar?