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klio [65]
3 years ago
13

What does a thick layer of an ice core tell us? A thin layer?

Biology
1 answer:
Elena L [17]3 years ago
7 0
Through analysis of ice cores, scientists learn about glacial-interglacial cycles, changing atmospheric carbon dioxide levels, and climate stability over the last 10,000 years. Many ice cores have been drilled in Antarctica.
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What role do genes and chromosomes play in the hereditary process?
uysha [10]

Each gene occupies a specific position on a chromosome. Because genes provide instructions for making proteins, and proteins determine the structure and function of each cell in the body, it follows that genes are responsible for all the characteristics you inherit. These pair up to make a total of 46 chromosomes.

6 0
3 years ago
Bats use sound waves to determine the location of insects that are flying at night. What is the primary medium that the bat's wa
Zolol [24]
The answer is A. Air 
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i hope this is helpful
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5 0
3 years ago
PLEASE HELP ASAP
Ksenya-84 [330]

Answer:

i think the first one, Kelp forest act as ecosystem engineers

Explanation:

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4 0
2 years ago
Molecules that cut dna at specific sequences are known as​
Neko [114]

Answer:

Restriction enzyme, also called restriction endonuclease, a protein produced by bacteria that cleaves DNA at specific sites along the molecule

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Hope it helps

3 0
3 years ago
Tom and Jerry start at the same location. Tom is travelling due east at a velocity of 5 m/hr. Jerry is travelling due northwest
Sedaia [141]

Answer:

The distance between them is changing at the speed of 10.16 m/hr

Explanation:

Consider the sketch attached below.

The question is simply asking to calculate the resultant of the two velocities.

To get the angle between them, we simply use the coordinates of the two vectors to determine the angle between them.  

90 + 45 = 135°

from the cosine rule we have

c^{2} = a^{2} + b^{2} - 2abcosθ

c^{2} = 6^{2} +5^{2} - 2 ×6×5×cos 135

c^{2} = 103.426

c = \sqrt{103.426}

c = 10.17 m/hr

6 0
3 years ago
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