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Gwar [14]
2 years ago
14

Which of the following statements best explains why evolution by natural selection is considered a theory and not a hypothesis?

Biology
1 answer:
rjkz [21]2 years ago
7 0

Natural selection provides the outline of an explanatory theory." Biologists consider it to be a scientific fact that evolution has occurred in that modern organisms differ from past forms, and evolution is still occurring with discernible differences between organisms and their descendants.

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A4 kg object possesses 18 J of kinetic energy. What is its velocity?
Digiron [165]

Answer:

velocity = 3 m/s

Explanation:

kinetic energy = 1/2 * mass(kg) * velocity²

Using the formula:

                                     18 = 1/2 * 4 * velocity²

                                      9 = velocity²

                                     velocity = 3 m/s

8 0
2 years ago
If a cell has 32 pairs of chromosomes in its diploid state, how many chromosomes will it have after Meiosis 1? A. 8 B. 64 C. 32
Lostsunrise [7]

Answer:

option c is correct that is 32

Explanation:

meiosis occur in two phases in the first phase DNA replication occur and amount of DNA becomes doubled without any changes in the chromosomes number and two daughter cells( each 2n) are formed

now in stage 2 each daughter cell undergoes mitosis with the formation of two cells  each with half chromosomes (n)

now 2n =32

n=32/2=16

after meiosis stage 1 ........ two daughter cell each with 32 chromosomes  

stage 2.... each daughter cell form two grand daughter cell each with 16 chromosomes

3 0
3 years ago
Why did Earth and Venus evolve so differently? Why is Earth's atmosphere rich in oxygen and poor in carbon dioxide, whereas the
Ratling [72]
The earth will have lack  of oxygen and the earth's temperature will increase in heat rapidly.
4 0
3 years ago
Environmental factors carn have various effects on ecosystems. In August 2005, Hurricane Katrina caused signifcant damage in sev
matrenka [14]
Assuming this is supposed to be a multiple choice question- I think the correct answer would be “early onset of spring change in marine ecosystems” because it looks like the question is asking what it wouldn’t affect, and I’m sure if the people had to leave, that animals would’ve all had to leave as well!
4 0
2 years ago
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In your own words, explain how the frequency of an ocean wave determines the motion of a surfer on the wave?
victus00 [196]
<span>Waves in a given area typically have a range of heights. For weather reporting and for scientific analysis of wind wave statistics, their characteristic height over a period of time is usually expressed as significant wave height. This figure represents an average height of the highest one-third of the waves in a given time period (usually chosen somewhere in the range from 20 minutes to twelve hours), or in a specific wave or storm system. HOPE IT HELPS</span>
5 0
3 years ago
Read 2 more answers
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