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3 years ago

which information do tiny fossils found in drilling samples from earths crust reveal about earths history?

Biology

1 answer:

denpristay [2]3 years ago

4 0

Answer: microfossils help us decode the climate and what the ecosystem was like in the past.

Explanation:

Fossils are any remainder or evidence of an organism that lived long ago. The preserved remains of living beings or their traces of the past are documents of the history of life on planet Earth.

Depending on their size, they are classified as microfosiles or macrosophiles.

Macrophiles are visible sized fossils, such as bones, shells or petrified wood. While the microfossils are seen with the microscope. They are important for correlating sedimentary layers, when looking for oil, and they help us decipher the climate and what the ecosystem was like in the past. Examples of microfossils are diatomaceous, radiolaria and foraminifera.

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I hope it helps you. Regards. María

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Which of the properties of water enables it to move from the roots to the leaves of plants

Sergeu [11.5K]

Answer:

if you water a plant the water travels though the soil then it will feed the roots and then it will go to the leaves of the plant.

Explanation:

3 0

3 years ago

1. Flower position, stem length, and seed shape are three characters that Mendel studied. Each is controlled by an independently

maria [59]

Answer:

a. 1/64 AATTDD

b. 1/64 aattdd

c. 8/64=1/8 AaTtDd

d. 2/64 = 1/32 AATTDd or aattDd or AAttDd or aaTTDd

Explanation:

Available data:

Flower position: Axial (A) is dominant to Terminal (a)

Stem length: Tall (T) is dominant to dwarf (t)

Seed shape: Round (R) is dominant to wrinkled (r)

Cross:

Parental) AaTtDd x AaTtDd

Knowing that these four genes assort independently, then we can infer that the F1 will have the next genotypic proportions for each gene:

AA= 1/4

Aa =2/4

aa = 1/4

TT = 1/4

Tt = 2/4

tt = 1/4

DD = 1/4

Dd = 2/4

dd = 1/4

This is the same as developing a Punnett square for each gene separately.

Knowing this, to get each of the mentioned genotypes for each trait, we must multiply their respective genotypic proportions, like this:

a. homozygous for the three dominant traits, AATTDD

AA1/4 x TT 1/4 x DD 1/4 = AATTDD 1/64

b. homozygous for the three recessive traits, aattdd

aa 1/4 x tt 1/4 x dd 1/4 = aattdd 1/64

c. heterozygous for all three characters, AaTtDd

Aa 2/4 x Tt 2/4 x Dd 2/4 = AaTtDd 8/16=1/8

d. homozygous for axial and tall, heterozygous for seed shape. There are four possibilities, all of them with the same result:

AATTDd --> 1/4 x 1/4 x 2/4 = 2/64=1/32

aattDd ---> 1/4 x 1/4 x 2/4 = 2/64=1/32

AAttDd ---> 1/4 x 1/4 x 2/4 = 2/64=1/32

aaTTDd ---> 1/4 x 1/4 x 2/4 = 2/64=1/32

4 0

3 years ago

Read 2 more answers

Which of the following is a density independent population factor?

Lady bird [3.3K]

Answer:

The correct answer is C: competition for resources

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3 years ago

State one way in which bacteria and archaea are different and one way in which they are the same.

Maksim231197 [3]

Archaebacteria is usually found in extreme environments and eubacteria is not found in environments. Also, eubacteria cell walls contain peptidoyclan. They are both prokaryotic cells.

Hope this helps!

-Payshence xoxo

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3 years ago

How do living things use matter such as carbon, nitrogen, phosphorus and water?

kodGreya [7K]

Answer:

Every living organism is made up of carbon, nitrogen, and phosphates. Nitrogen and carbon are found in amino acids which make up proteins. Phosphates make up DNA and ATP.

Explanation:

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4 years ago