4.2 A plant was placed in water containing black dye. After 24 hours the plant was removed and sections were taken from the root and the stem Which diagram shows the results? (2) A B C root stem root atem ם root stem roat stem ​

"do a testcross with a homozygous recessive plant."

a researcher conducts an experiment on the secretion of a particular hormone in mice. scientists inject mice with a substance that stimulates the production of the hormone. the scientists then test the levels of hormones produced by the mice. the tool used to measure the hormones consistently detects the levels at 10 points lower than the actual hormone levels in the mice. this tool makes measurements, but the measurements aren't .

explanation:

no u

c. establishing proper sleep hygiene