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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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In terms of environmental economics, the only factions that disagree with each other are environmentalists and economists. True
MatroZZZ [7]

The correct answer is FALSE.

It is false that the only factions which disagree with each other is economists and environmentalists.

Economists are referred to as practitioners which are found in the social science and their work is to discipline economics.

A person can develop, study and apply some concepts and theories from economic.

Environmentalists are termed as supporters who supports the movement of the environment.

There is a ethical movement of the movement or political which works to protect and improve quality of environment which is natural.

Environmentalist believes in environmentalism philosophy.

3 0
3 years ago
Read 2 more answers
Which of the following events can result in inheritable genetic variations in organisms
Svetlanka [38]

The right answer is B.

The answer B is the only proposition which specified at which stage the event must occur, in fact, the meiosis.

Meiosis is a characteristic division of reproductive cells that can generate gametes to form new species (desendence). So if a mutation occurs at this time (such as recombinations) it will inevitably be inherited.

3 0
3 years ago
Read 2 more answers
Q.What is meant by biodiversity ? List two advantages of conserving forests and wildlife.​
Vesna [10]

Answer

it refers on the variety of life on earth at all its levels from genes to ecosystems and can encompass evolutionary ,ecological and cultural processes that sustain life

<h2><u>advantages of conserving forests and wildlife</u></h2>

1.It protects the endangered species.

2.It preserves different kind of species

Explanation:

3 0
3 years ago
In garden peas, tallness (T) is dominant to shortness (t) and axial flowers (A) are dominant to terminal flowers (a). What are t
Delicious77 [7]

Answer:

The correct answer is explained below:

Explanation:

  • According to the question, heterozygous tall, heterozygous axillary plant has the following genotype, TtAa.
  • It produces the following gametes: TA, Ta, tA, ta.
  • The heterozygous tall, terminal plant has the following genotype: Ttaa
  • It produces the following gametes: Ta, ta.
  • Crossing them,

           TA                       Ta                     tA                        ta

Ta      TTAa                   TTaa                 TtAa                   Ttaa

     (Tall, Axillary)    (Tall, Terminal)    (Tall, Axillary)    (Tall, Terminal)

ta       TtAa                    Ttaa                  ttAa                   ttaa

     (Tall, Axillary)     (Tall, Terminal)   (Short, Axillary)  (Short, Terminal)

  • The genotypes of the offspring obtained are: TTAa, TTaa, TtAa, Ttaa, ttAa and ttaa respectively.
  • The phenotypes obtained are:
  1. Tall, Axillary = 3.
  2. Tall, Terminal = 3.
  3. Short, Axillary = 1.
  4. Short, Terminal = 1.
8 0
4 years ago
In 6-8 sentences, explain how stream volume and speed affect the size, shape, and flow of streams and rivers. please help me and
nikdorinn [45]

Explanation:

The speed of water in a stream is affected by the gradient of the geography. The steeper the geography the higher the speed of the water flow and the higher the erosion capacity of the stream. This means the stream will be narrow and deep. There is also less meandering of the stream.

When the gradient is less steep, the stream flow slows down and so does the erosion force it bears especially on the river bed. This therefore result in a higher horizontal erosion than vertical erosion. The steam becomes wide and shallow. The stream is also more likely to meander.

The volume of water in the stream also affects the size, shape, and flow of streams and rivers. A higher volume of water has more erosion power due to the weight of the water column. The stream is, therefore, more likely to be bigger in size than a stream that carries low water volume.  

Learn More:

brainly.com/question/13648696

brainly.com/question/14200651

brainly.com/question/3239165

#LearnWithBrainly

7 0
3 years ago
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