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Andreyy89
3 years ago
10

30 POINTS ASAP

Biology
1 answer:
Helen [10]3 years ago
7 0
Scientist combine-several well-tested techniques to find out the ages of fossils. The most important are Relative Dating, in which fossils and layers of rock are placed in order from older to younger, and Radiometric Dating, which allows the actual ages of certain types of rocks to be calculated. There is no way to calculate an "absolute" age. Relative Dating. 
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What are the 2 elements involved in the sun's production of energy?
tatuchka [14]
There is only one main element involved in the fusion reactions inside the sun; Hydrogen, but if you need a second element then it is more than likely that the question is asking for the isotope of hydrogen that is called <span>deuterium.

So basically, Hydrogen and Deuterium; an isotope of hydrogen</span>
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3 years ago
The false spider mite, Brevipalpus phoenicis, has only two chromosomes. Which of the following pieces of evidence would allow yo
Reptile [31]

Answer:

The correct answer is - a. If these two mite chromosomes have different genes at different loci.

Explanation:

If it is 2n= 2, it means that it is diploid and has two sets of chromosomes in which one set comes from mother and the other from father which means parent's genes contribute to diploid equally. Both sets of chromosomes form homologous chromosome pair. Each homolog of the pair has the same gene at the same loci in diploid and if it has not the same homologous gene at the same loci these are haploid.

8 0
2 years ago
Which of the following is not a step involved in critical thinking? a. asking questions b. assessing validity c. writing a summa
Dovator [93]

Answer:

The correct answer is C

Explanation:

4 0
3 years ago
how many electrons are in outermost energy level of an oxygen atom as it shares electrons with hydrogen atoms as part of a water
Firdavs [7]

Answer:

8 electrons

Explanation:

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Please mark brainliest and have a great day!

6 0
2 years ago
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5. If the lever arm is longer than the load arm, this lever system would be
Juli2301 [7.4K]

Answer:

B

Explanation:

nose pienso q es eza

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