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AnnZ [28]
3 years ago
8

What is a mass extinction?​

Biology
2 answers:
rjkz [21]3 years ago
8 0

Answer:

A mass extinctions is a rapid decrease in the biodiversity on Earth.

Explanation:

For example, the Dinosaurs.

Korvikt [17]3 years ago
6 0

Answer:

The extinction of a large number of species within a relatively short period of geological time.

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One who has recessive trait but does not show symptoms of that disorder
Ket [755]

Answer:

A carrier!

Explanation:

hope this helpsss

7 0
3 years ago
What will happen If cork is not formed in older stems and roots
ra1l [238]
The corfk, part of the planjt camb,ium, has a very important role of protection on trees against parasites and adversne environmental effects. The cork is made up of dead cells that act like the skin on our body-as a mechanical barrier. An important character of the cork is that it is water and gas resistant.
4 0
3 years ago
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Dan ""threw out his back"" after lifting heavy furniture and complained of pain radiating down the back of his right leg. Use an
Blababa [14]

When Dan "threw out his back", the anatomical terminology regions with the possibility of the injury occurrence is in alignment with the lumbar segment of the spine, having and impact on the sciatic nerve and leading to pain which is often known as the posterior region of the lower right limb. The imaging technique that would be employed in the diagnostics is Nuclear Magnetic Resonance Imaging.

Explanation:

One of the aftermath of physical activity - comprises of lifting weighty objects - is lower back injury, which often varies from painful muscle contraction, muscle tearing, or damage to the inter-vertebral disc of the lumbar spine.

In Dan's situation, the intent to lift the furniture could result to:

Protrusion of the disc that is found admist two vertebrae, known as herniated disc.

Lumbar disc hernias could results in compression of the sciatic nerve.

Sciatic nerve damages would lead to a variety of symptoms including pain or neurological disorders - which includes tingling, numbness, painful current, amidst others - in the region of that nerve.

Dan happened to feel pain at the back of his right lower limb, where the damage sciatic nerve flows through.

Which imaging technique would you prescribe to diagnose a spinal problem?

The best imaging technique to estimate the possibility of the occurrence of lesion with the diagnosis of a spinal injury is the Magnetic Resonance Imaging, which permits in studying the bone structure and the soft tissue (cartilage, muscle) of the influenced region.

The X-rays would only permit observation of the structures of the bones, that plays a important role in diagnosing fractures, deformities or structural variation, but would not reflect the actual form of the ligaments, inter-vertebral discs or muscle.

5 0
3 years ago
Yo can someone help me out
timama [110]
B is the answer since it needs to be improved
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3 years ago
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Ocean surface currents circulate in clockwise direction in the Southern Hemisphere.
ch4aika [34]
The ocean surface currents circulate counter clockwise direction in the southern hermisphere duebto the coroilis effect.
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4 years ago
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