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2 years ago

All of the oxygen that we breathe is produced by plants. a. True b. False

Biology

1 answer:

myrzilka [38]2 years ago

6 0

Answer:

The given statement is true.

Explanation:

The oxygen that is present in the atmosphere has two main sources:

Terrestrial Plants: As we know that the plants make use of sunlight, water, carbon dioxide and chlorophyll in a process termed as photosynthesis and make glucose and releasing oxygen into the atmosphere which is then used by animals for respiration. This is one of the major source of oxygen in the atmosphere.

Oxygen released from Oceans: In the oceans of the earth, water bodies ,seas tiny plants termed as Phytoplankton are present that are present near the surface of the water bodied that also release oxygen by photosynthesis and account for about 50% of the world's oxygen supply.

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According to the data collected by the Economic Policy Institute, what is the relationship between annual earnings and education

yawa3891 [41]

The relationship between annual earnings and education attainment is the higher the education level , the higher the income .

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2 years ago

Behavioral tolerance is based on pavlovian conditioning. a. True b. False

nexus9112 [7]

The answer to this obvious question is true

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2 years ago

Read 2 more answers

Much important confirmatory evidence on the genetic code has come from assessing changes in the amino acid sequence of mutant pr

Reil [10]

Answer:

The correct answer is -

A. a, c, g

B. e, b, f & d

Explanation:

Part A- the options a, c, g are the options that show mutation or replacement by a single base change

a) Phenylalanine: UUU UUC

Leucine: UUA UUG

Only one base change

c) Alanine: GCU GCC GCC GCG

Thr: ACU ACC ACA ACG

only one base change

g) Prolin: CCU CCC CCA CCG

Serine: UCU UCC UCA UCG

Part B:

All other replacements will not be consistent with the Genetic Code if single base substitutions occur in option e, b, f & d

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2 years ago

Some people referred to prohibition as a ""noble experiment"" because it

timofeeve [1]

Answer:

forced people to improve their morals.

Explanation:

The prohibition prevent people from consuming alcohol , which is dangerous for their health and overall well-being so it is automatically improving the morals of the people by forcing people not to consume alcohol. This question refers to the law that 'prohibited' people from consuming alcohol, since it is not an awareness campaign but a law that tried to improve the morals of the people so it is a Noble experiment.

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2 years ago

Which phase occurs directly after G2? A. S phase B. G1 C. Cytokinesis D. M phase

melisa1 [442]

Answer:

The phase which occurs after G2 of the cell life cycle is the M phase, also known as Mitotic or Meiotic phase.

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2 years ago