Sea Cucumber
A strange animal, easily mistaken for a plant
The sea cucumber, a large number of
species of which are known is a
marine creature, but sms more like a
merite of the vegetable kingdom
than something which belongs without
dcast to the animal world is
hard to creve that sea cucunda
s
freely. The colouring of the sea
cucumber is very varied and some
species are highly decorative The
och is surrounded by about thenes
tewas the purpose of which to
hemaletes pusing by and
dire them towards the buccalorifice
Thanks
ticular anamalar
Fan
cucumber can take
the sand
one of the strangtaypee
He them not in the sighest
The very hapes of their several
thousand species post infinite but
il

d is the answer

sorry if its wrong!

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

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.