Select the correct answer.
betty drew the life cycle of a butterfly for a science exhibition. the life cycle showed the various stages of growth before the egg turns into a butterfly.
what type of model did betty use?
monarch butterfly
life cycle
larva
chrysalis
a.
hypothetical
ob. conceptual
c.
mathematical
d. physical
served.

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