Biodiversity and Succession in Environments (7.10 B & C)::Question 5
When an ecosystem is said to have great biodiversity, this
statement refers to
Select one:
the collective variety of organisms in an ecosystem.
O
O
how living things have changed over time.
the reasons organisms are different from each other.
O O
how organisms approach the demands of life.

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds

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