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Ne4ueva [31]
2 years ago
9

About how many years old is earth

Biology
1 answer:
Serjik [45]2 years ago
5 0

The Earth is around 4.6 billion years old. Earth has a slightly squashed sphere, measuring 7,973 miles (12,756 km) in the diameter at the equator.

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What is the main difference between the null and the research hypothesis? What is the importance of assuming the null hypothesis
Ksivusya [100]

Answer:

The null hypothesis is a general statement that states that there

is no relationship between two phenomenons under

consideration or that there is no association between two groups.

A hypothesis, in general, is an assumption that is yet to be proved

with sufficient pieces of evidence.

8 0
1 year ago
When a wave is bent at an angle as it passes through a new medium it is called
mezya [45]
It is called refraction
7 0
2 years ago
The following statements can be classified as describing only a hypothesis, only a theory, or both. Look at the following answer
otez555 [7]

Answer: C.) Prediction, tentative, one or more scientists working together.

Explanation:

The prediction, tentative, one or more scientists working together is the correct option which describes a hypothesis. This is because of the fact that an hypothesis is an presumed statement of facts which is required to be tested by using suitable methodology. Scientists basically base their scientific hypothesis keeping in mind the previous theories or observation which were not proved satisfactorily earlier or exhibit some doubtful facts which are taken important for verification.

8 0
3 years ago
Kalani is told that he is the father to both of Winnie's sons, Marcus and Kevin. Marcus has type A blood and Kevin has type O bl
Sliva [168]

.It is possible that Kalani is the father of Marcus but he can not be the father of Kevin.

<h3>What is genotype?</h3>

Genotype has to do with the total number of genes that an offspring recieves from its parents. We are told that the parents here are Kalani (blood type AB) and Winnie (blood type B).

If this is the case, it is impossible to explain the fact that Kevin has blood group O.It is possible that Kalani is the father of Marcus but he can not be the father of Kevin.

Learn more about genotype: brainly.com/question/12116830?

6 0
1 year ago
How are sponge larvae and collar cells similar to protozoans?
kompoz [17]
They use flagella to move
4 0
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