Chemical analysis indicates that the cell membrane is composed mainly of:

1) proteins and starch

2) proteins and cellulose

3) lipids and starch

4) lipids and proteins

The cells of living organisms store genetic information in the form of DNA, which can be transcribed into RNA. RNA can then be translated to form protein products.

Which of the following is not a factor that affects photosynthesis?

How many generations did it take modern man to leave Africa and penetrate every corner of the globe?

On which feature is pseudoscience based? detailed research with reliable sources static information that does not change repeated investigations testable experience

Carlos loves puppies and his brother was annoyed because Carlos have a lot of puppies in his room. What can he do to fix his room have a lot of puppies on his room?

Which of the following is a biotic factor? a. Parasites b. Sun c. Soil d. Temperature

When nucleotide sequence of the cell's DNA becomes altered it causes what

Factors that can alter the level of expression of a gene include Check All That Apply an increase in l temperature. an increase in salinity. exposure to UV radiation. presence of particular energy substrate.

What did Virchow observe that led him to determine one of the main components of cell theory?

Discuss the social and biological construction of race in the United states.