Which feature on microscope did Anton van Leeuwenhoek add that enabled him to magnify organisms about 250 times?

•drop of water

•light from oil lamp

•tubes that extend

•polished lenses

What is the connection between pH and enzyme activity?

The lac operon in E. coli controls the gene expression of the enzymes that digest lactose in the cell. In the presence of lactose, the lac operon will turn on and the genes will be expressed.

If all of the offspring have roan coats-white hairs mixed into a base coat of red-what can be said about the red and white alleles for coat color?

What three components make up a nucleotide? A. a deoxyribose, a phosphate, and an enzyme B. a phosphate, an enzyme, and a nitrogen base C. an enzyme, a deoxyribose, and a nitrogen base D. a phosphate, a deoxyribose, and a nitrogen base

Which of the following best describes low electrical resistance? A. Low electrical resistance is found in materials that stop the flow of electrons. B. Low electrical resistance is found in materials that discourage the flow of electrons. C.

During which type of counseling does the senior allow two-way analysis to develop solutions

What fraction of the offspring would be expected to have white hair?

How are the four states of matter described in physical science

The nurse observes the client and notes a shuffling gait. the nurse recognizes this finding is consistent with:

What factors affect the diffusion of water through a membrane by osmosis?