Phototropism and geotropism are controlled by which type of plant growth chemical?

auxin

cytokinin

gibberellin

thigmotrope

Who put the ideas together that became the beggings of the cell theroy

Which of the following is a phase of mitosis?

Crossing over causes a recombination of genes and the eventual offspring to have a different genetic makeup then either parent. True False

The hot zone what are the implications if ebola is airborne

Where does a young marsupial develop? inside nests inside a mother's body inside eggs inside a mother's pouch

Nucleotide are composed of phosphate group, a sugar, and a nitrogenous base. DNA is made up of long strands of nucleotide. which part if the above molecule can differ between nucleotide? A. the sugar B. the phosphate group C. the nitrogen group D.

What organ system detects stimuli, secretes chemical and electrical signals, and controls all other organs

Which tissue type allows for organ movement within the body

Explain the role of enzymes and how they affect the chemical reactions of living things

Many arthropods young do not look like adults and do not eat the same food as adults. how would this be an advantage in an environment where food is scarce