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tangare [24]
3 years ago
7

During which eon did oxygen begin to build up the most in Earth’s atmosphere? a.)Phanerozoic b.)Proterozoic c.)Hadean d.)Archean

Biology
1 answer:
NNADVOKAT [17]3 years ago
5 0

phanerazoic

if there was no oxygen then why were there dinosoars

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Explanation: So air, like most other substances, expands when heated and contracts when cooled. Radiation cooling occurs when air near the ground is cooled by the Earth's surface losing heat by radiation.
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Is nutrition a result of cell division?
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TritionalshiftsofEscherichiacoliB/rtorichermediahavebeenanalyzedinsynchronouslygrowingandexponential-phasepopulations.Earlyperturbationsinthetimingofcelldivisionwereobserved.Attheslowgrowth,divisionpro-gressedatarateequaltoorlessthanthepreshiftrateforabout1h.Atintermediategrowth,bothdelaysandaccelerationindivisionwereobserved.Theextentoftheperturbationdependedupontheageofthecellsatthetimeoftheshiftandthecompositionofthepreshiftandpostshiftmedia.TheperturbationwasdifferentinthetwosubstrainsofE.coliB/r I got this from http://jb.asm.org/content/136/2/631.full.pdf hopefully it helps you


4 0
3 years ago
Which pattern best describes most evolutionary paths?
Volgvan
Answer is B convergent
8 0
3 years ago
Produce a table that displays which molecular bonds are found in the primary, secondary, tertiary structure (the same can be fou
zysi [14]
Primary= peptide bonds
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3 years ago
After its formation, Earth was extremely hot. Which of these contributed to the cooling of Earth?
MariettaO [177]

Answer:

The answer is D

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When absorbed energy is released back into space, Earth cools. Many factors, both natural and human, can cause changes in Earth's energy balance, including: Variations in the sun's energy reaching Earth. Changes in the reflectivity of Earth's atmosphere and surface.

6 0
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