During which phase of mitosis do the chromosomes become visible with a microscope? A. crotokinesid

B. prophase

C. Anaphase

D. Telphase

What molecule is active firts in dna replucation

A researcher proposes that the transmembrane portion of a certain protein consists of 24 amino acids. Based on the proposed model, calculate the number of nucleotides in the mRNA that encode only the amino acids in the transmembrane portion of the

Students planted three bean seeds. after several days, they observed that the seeds' roots were growing downward into the soil. which type of topism were the roots displaying?

What system maintains the pH of human blood at very near 7.4?

Which is an example of a biotic factor interacting with an abiotic factor? R. An owl living inside the trunk of a tree S. A prairie dog digging a tunnel under the soil T. A frog eating a fly V. A cow grazing on grass

Egg and sperm are a type of these?

Is coral a plant or an animal?

What prevents blood movement from left ventricle to left atrium

What happens in an aphotic zone of a body of water

Which of the following items would be an ecosystem within the ocean ecosystem? a. marshes b. coral reefs c. rivers d. ponds