The continents began to drift apart by the end of the _______ period.

2 answers:

5 0

<span>a. Cretaceous

</span>The continents began to drift apart by the end of the _______ period.

NOT:

b. Cambrian
c. Neogene
<span>d. Permian</span><span>

</span>

omeli [17]3 years ago

4 0

The right answer is Cretaceous

The Cretaceous corresponds to the last period of the Mesozoic (or secondary era). It ranges from -145.5 million years to -65.5 million years.

In the Cretaceous, the global climate was particularly hot, which allowed the massive development of plankton (chalk banks), but also that of large aquatic and terrestrial reptiles.

The end of the Cretaceous was marked by the biological crisis that saw the disappearance of the dinosaurs, but also 76% of the marine species of the planet.

You might be interested in

Which are characteristic of type A blood?

algol13

Answer:

b, c, and f

Explanation:

Since it is type A it will have antigen A on it's surface and only antigen A it will contain anti-B antibodies as that's the incorrect protein. These anti-B antibodies will cause agglutination with blood type B

5 0

3 years ago

Imagine that a researcher is studying a population of nerve cells known as the neural crest. In mice, when these cells fail to f

Svetlanka [38]

<h2>Neural crest </h2>

Explanation:

The neural crest likely forms: neurons and glia of the peripheral nervous system

The neural crest are bilaterally paired strips of cells arising in the ectoderm at the margins of the neural tube
In the body region, neural crest cells also contribute the peripheral nervous system (both neurons and glia) consisting of sensory ganglia (dorsal root ganglia), sympathetic and parasympathetic ganglia and neural plexuses within specific tissues/organs
The nervous system is made up of specialized cells which includes nerve cells (or neurons) and glial cells (or glia)
Neurons are the basic functional units of the nervous system, and they generate electrical signals called action potentials, which allow them to quickly transmit information over long distances
Glia are also essential to nervous system function, but they work mostly by supporting the neurons

7 0

3 years ago

if a cell has 20 chromosomes how many chromosomes will be in the daughter cells formed by mitosis how many will be in cells form

pashok25 [27]

Through mitosis, daughter cells will maintain 20 chromosomses. Meisosis will create cells with 10 chromosomes.

5 0

3 years ago

If you were designing a method to specifically inhibit prokaryotic transcription, but not eukaryotic transcription, interfering

kobusy [5.1K]

The correct answer is: B) recognition of the prokaryotic promoter by RNA polymerase

The similarities between prokaryotic and eukaryotic transcription are that DNA is template used for the mRNA synthesis and that this is process is facilitated by the enzyme RNA polymerase.

One of the difference between this process in eukaryotes and in prokaryotes is the promoter region: eukaryotes contain TATA box and CAT box, while prokaryotes don’t (they have Pribnow box that is similar to the TATA box). Promoter region in prokaryotes is always upstream to the start site, while in eukaryotes it can be downstream.

6 0

3 years ago

Explain how earthquake change the earth surface

solong [7]

Answer:

Answer:Earthquakes often cause dramatic changes at Earth's surface. In addition to the ground movements, other surface effects include changes in the flow of groundwater, landslides, and mudflows. Earthquakes can do significant damage to buildings, bridges, pipelines, railways, embankments, dams, and other structures.

Explanation:

<h3>I hope this helps!</h3>

7 0

3 years ago