When cells divide or multiply, the dna must be copied, or replicated. all known organisms replicate their dna by a method known as semi-conservative replication, in which each of the two strands of the parent dna becomes part of the daughter dna?

Describe specialized feeding structures of parasitic platyhelminthes

Which two organelles can be found in plant cells that aren't found in animal cells?

Describe what makes up the universe.

A patient is admitted to the hospital to undergo a radical mastectomy for recurrent carcinoma of the breast (previously, she had elected to have a lumpectomy).

It has been found that the tenderness of beef can be predicted by analyzing a cow's genes. So, commercial tests are now available for farmers to be able to determine which of their cows possess the "tough" gene and which possess the "tender" gene.

Which of the following are atoms of the same element? Check all that apply. an atom with eight protons and seven electrons an atom with nine protons and seven electrons an atom with eight protons and eight electrons an atom with eight protons and no

What are the two reasons oxygen and carbon dioxide can move easily across the cell membrane?

Which component of blood is responsible for the formation of blood clots? a. all blood cells b. red blood cells c. myoglobin d. platelets e. white blood cells?

What will the majority of pathogens in food be killed by? a) antimicrobial secretions from the sebaceous glands in the skin b) mucus in the trachea c) acid in the stomach d) nose hairs

What can high levels of salt do to a plant