All categories

2 years ago

Describe the order of how living things arose based on the geologic timeline?

1 answer:

8 0

Answer: Geologists and other Earth scientists use geologic time scales to describe when events happened in the history of Earth. The time scales can be used to show when both geologic events and events affecting plant and animal life occurred. The geologic time scale pictured below (Figure below) illustrates the timing of events like:

Earthquakes.

Volcanic eruptions.

Major erosion.

Meteorites hitting Earth.

The first signs of life forms.

Mass extinctions.

Explanation:

You might be interested in

Which theme is expressed when the tannery fav

lakkis [162]

Arents and children
diverse cultures
urban vs. rural life
people and nature

8 0

3 years ago

You identify a mutant whose chromosomes shorten after each round of replication. a mutation in which gene would explain this obs

umka2103 [35]

Telomerase is a mutation in which gene would explain this observation. Telomerase, also called terminal transferase, is a ribonucleoprotein that adds a species-dependent telomere repeat sequence to the 3' end of telomeres. A telomere is a region of repetitive sequences at each end of a eukaryotic chromosomes in most eukaryotes.

6 0

3 years ago

50 POINTS CORRECT ANSWERS ONLY Write a 3 paragraph essay comparing and contrasting vertebrates and invertebrates. In your essay

andrey2020 [161]

I think we’re on the same assignment

6 0

3 years ago

In mice, black coat color (B) is dominant over brown (b), and a solid pattern (S) is dominant over white spotted (s). Color and

jenyasd209 [6]

Answer and Explanation:

It is a dihybrid cross, where:

B= black (dominant)

b= brown

S= solid (dominant)

s= spotted

a) The genotype of the parents are:

homozygous black spotted= BBss ⇒ Gametes: Bs, Bs, bS, bS

homozygous brown solid= bbSS ⇒ Gametes: bs, bs, bs, bs

The F1 mice is the resultant progeny from the cross BBss x bbSS. We combine the games of the parents and all combinations are : BbSs. All F1 genotype is BbSs (heterozygous black and solid mice).

b) The testcross is carried out between F1 mice (BbSs) and brown spotted mice (bbss)

BsSs ⇒ Gametes: BS, Bs, bS, bs

bbss ⇒ Gametes: bs, bs, bs, bs

From the gametes, we obtain all the possible combinations:

BSbs = BbSs (black, solid) ⇒ ratio= 1/2 x 1/2= 1/4

Bsbs= Bbss (black, spotted) ⇒ ratio= 1/2 x 1/2= 1/4

bSbs= bbSs (brown solid) ⇒ ratio= 1/2 x 1/2= 1/4

bsbs= bbss (brown spotted) ⇒ ratio= 1/2 x 1/2= 1/4

So, we obtain 1/4 of black solid mice (BbSs), 1/4 of black spotted mice (Bbss), 1/4 of brown solid mice (bbSs) and 1/4 of brown spotted mice (bbss).

4 0

3 years ago

Actinobacteria sp. are fermenting organisms, which do not require oxygen to survive. These organisms break down organic material

nordsb [41]

Answer:

Decomposition

Explanation:

The "Carbon Cycle" consists of four processes and these are: Photosynthesis, Decomposition, Respiration and Combustion.

After the process of photosynthesis, the animals will consume the plants and then will die and so will the plants after many years later. They will decompose and turn into fossil fuels, which are organic materials. The organic materials will then be decomposed by Actinobacteria into inorganic materials. These stays into the soil and allows the growth of plants once more. Then, the Respiration process follows.

7 0

3 years ago

Describe the order of how living things arose based on the geologic timeline?​

Describe the order of how living things arose based on the geologic timeline?