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kobusy [5.1K]
2 years ago
5

A different parent-daughter pair in the felsic ash has a half-life of 50 million years. There is 25% of this parent still remain

ing. How old is the felsic ash?
Biology
1 answer:
pantera1 [17]2 years ago
4 0
I attached an answer that I found, but I'm not sure.

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Help please please please<br> :)
wlad13 [49]

Answer:

it is d all above

Explanation:

6 0
3 years ago
What physical process changed the geological area and composition of the Earth's oceans shown in the two pictures below?
Maksim231197 [3]
The physical process that tend to change earth geological area and composition would be the plate tectonics.

Hope this helps out 
3 0
2 years ago
Read 2 more answers
Light penetrates the clear water of the open ocean more deeply than it does lake
SOVA2 [1]
The answer is A: phytoplankton provides nutrients to consumers in the ecosystem.

Hope this helps:)
6 0
3 years ago
Will mark brainliest
MariettaO [177]

Answer:

Well , I think the answer is B

This represents a closed system,and one benifit is that the risk of passing disease between other species is lower than in open system

But still I prefer you to check it out in your book

6 0
3 years ago
Read 2 more answers
Brown eyes is dominant to light eyes. Mr. O'Ryan has blue (light) eyes. Mrs. O'Ryan is heterozygous for brown eyes. What are the
d1i1m1o1n [39]

Answer:

Brown eyes = 0.5

Blue eyes = 0.5

Explanation:

Given, B ( brown eyes ) is dominant over b ( blue/light eyes ). So,

BB = Brown

Bb = Brown

bb = blue/light

Mr. O'Ryan = blue eyes = bb

Mrs. O'Ryan = heterozygous brown eyes = Bb

Their children: Bb X bb :

      B        b

b    Bb     bb

b    Bb     bb

Half of the children will have Bb genotype and brown eyes, other half will have bb genotype and blue eyes. Hence, Kellan O'Ryan has 0.5 probability of blue eyes and 0.5 probability of brown eyes.

6 0
3 years ago
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