Biology, 11.06.2021 22:50 amayarayne5
Complete these sentences by matching the phrases below.
When light waves are emitted by a moving source scientist can measure:
?
Doppler affect
Scientists smash
together tiny bits
of matter using:
?
cosmic microwave
background radiation.
Scientists
extrapolate
backwards in
time to derive:
?
particle accelerators.
The extremely
low temperature
of outer space
can be explained
as:
?
the Big Bang theory.
Answers: 3
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What kinds of molecules can pass through the cell membrane without any problem?
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When is your breathing likely to speed up? a. when your white blood cells increase b. when your cells need more energy c. when your heart cells need more carbon dioxide d. when your blood cells have too much oxygen
Answers: 1
Biology, 22.06.2019 19:50
Which statements explains what the fossil records indicates? check all that apply. a) earth is 4.5 billion years old b) many organisms have become extinct c) mammals have always existed on earth d) mass extinctions have occurred several times on earth e) the amount of water on earth has decreased over time?
Answers: 2
Complete these sentences by matching the phrases below.
When light waves are emitted by a moving so...
Mathematics, 12.02.2020 22:24
Mathematics, 12.02.2020 22:24
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Mathematics, 12.02.2020 22:24