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Mamont248 [21]
3 years ago
5

Which of the following could be a method used to estimate the age of an ancient rock? To find out its mineral composition To fin

d the age of the fossils trapped in it To calculate the amount of C-14 atoms left in it To calculate the number of sediment layers in it
Biology
2 answers:
Galina-37 [17]3 years ago
5 0
I’m pretty sure the answer would be Carbon dating
romanna [79]3 years ago
3 0
I believe it would be to calculate the amount of C-14 atoms left. scientists began to find out how long an object has been decaying, this has to do with half lifes etc. and how long a specific mineral/elements half life is. they use this to calculate how old it is (not an exact age but it's very accurate.)
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What could be added to soil plot one to make the water drain and the soil more hospitable for growing plants
Anit [1.1K]

Answer:

large rocks

Explanation:

How do I make my soil drain better for plants?

Adding lots of organic matter such as compost, farm manure, or shredded leaves to clayey soil will allow it to drain more easily and hold the right amounts of water and air for better plant growth and increased biological activity.

8 0
2 years ago
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Round seeds (R) are dominant to wrinkled seeds (r), and yellow seeds (Y) are dominant to green seeds (y). A plant of unknown gen
hammer [34]

Answer:

<h2>RrYy and rryy </h2>

Explanation:

1. As given; Round seeds (R)  are dominant on wrinkled seeds (r),

Yellow seeds (Y) are dominant on green seeds (g).

In a testcross, between an unknown genotype and a homozygous recessive with wrinkled and green seeds (rryy).

offspring are:  

Round and yellow are  53; genotype (R_Y_)

round and green are  49;  genotype (R_yy)  

wrinkle and yellow are 44;  genotype (rrY_)

wrinkled and green are  51 ; genotype  (rryy)

Here, the genotype of parents of these offspring would be RrYy and rryy.

6 0
3 years ago
Describe what a living system is and why the connections in it are important
NISA [10]

Explanation:

a living system is a system in an organism consisting of organs. each organs carry out different functions to ense life processes can be carried out effectively. The function of the organs are determined by the cells which make up the tissues. The connections are important to remove wastes/toxins out of the body and help absorb nutrienys, in some cases produce hormones as a form of homeostasis to ensure the body remains in a healthy optimised state constantly.

7 0
4 years ago
What do the data tell you about your hypothesis?
marysya [2.9K]

Hello, 3Coli here!

Here is your answer:

My data supports the hypothesis as supporting evidence. My hypothesis would not have existed if I didn't have evidence. If a hypothesis doesn't match my data, it could be wrong.

Hope this helps! :D

Ask your question below!

8 0
3 years ago
Read 2 more answers
What are the primary components of the juxtaglomerular apparatus? check all that apply?
KIM [24]
<span>The juxtaglomerular apparatus is a structure (formed by the distal convoluted tubule and the glomerular afferent arteriole) with the function in the regulation of blood pressure and the filtration rate of the glomerulus. Its primary components are:
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</span> <span><span>·     </span>juxtaglomerular cells- formed from the smooth muscle cells of the afferent arteriole (secrete renin),</span>
<span><span>·     </span>extraglomerular mesangial cells (lacis cells)-unknown function.</span> <span> </span>
7 0
4 years ago
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