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3 years ago

What are the two main ways that scientists learn about Earth's interior and what do these two things indicate?

2 answers:

5 0

Scientists use seismic waves from earthquakes to study the interior and the Earth's magnetic field. The seismic waves indicate the mantle is molten rock that flows like plastic, the outer core is completly molten rock, and the inner core is a solid ball of iron. The magnetic field indicates the inner core is spinning faster than the rest of the planet

Marta_Voda [28]3 years ago

3 0

The two main ways that scientists learn about Earth's interior is by studying the data collected by body waves and surface waves. The body waves travel in the interior part of the earth in all direction while the surface waves travel along the surface of the Earth. Now these body waves can travel through all liquids and solids while the surface waves can travel through only solids. The physical characteristics studied are density and state of material to which these waves respond and studying their seismographic recording would give a description of the composition of the Earth’s interior.

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A stroke victim has great difficulty moving his right hand and right leg. He also has trouble speaking. Which of his cerebral he

Fofino [41]

Answer:

The correct answer is left cerebral hemisphere.

Explanation:

The left cerebral hemisphere of the brain is accountable for the motor control of the right side of the body, for sensory stimulus from the body’s right side, for analysis and calculations, for the speech, comprehension, and language, for the recognition of letters, words, and numbers, and for time and sequencing.

The left cerebral hemisphere is accountable for the processing of the sensory information and motor information for the body’s right side. Thus, as left cerebral hemisphere monitors the movement of the body's right side, so, based on the extremity of the stroke, which may result in motor skill impairment or functional loss of the right side of the body, shows that the left side of the brain has got affected.

6 0

2 years ago

Although prokaryotic and eukaryotic cells seem very different, they actually have

NISA [10]

Answer:

A. Cell membrane, DNA, ribosomes

Explanation:

I'm not so sure, sorry if i'm wrong ):

8 0

3 years ago

How has technology influenced our understanding of cells and cell division?

gogolik [260]

New technology drive progress in many research fields,including cell biology.

7 0

3 years ago

GenAlex Medical, a leading manufacturer of medical laboratory equipment, is designing a new automated system that can detect bor

SashulF [63]

Answer:

The minimum mass of dissolved cholesterol that the new system must be able to detect is 0.43 milligrams.

Note: The question is incomplete. The complete question is:

GenAlex Medical, a leading manufacturer of medical laboratory equipment, is designing a new automated system that can detect borderline high levels of dissolved cholesterol (170, to 200. mg/dL), using a blood sample that is as small as 250 μL Calculate the minimum mass in milligrams of cholesterol that the new system must be able to detect Be sure your answer has the correct number of significant digits.

Explanation:

Range of the equipment to detect cholesterol in blood = 170.0 to 200.0 mg/dL

Minimum amount of cholesterol that can be detected by instrument = 170 mg/dL

Volume of blood sample = 250 μL= 0.0025 dL (1 dL = 100000 μL)

Amount of dissolved cholesterol in 250 μL sample of blood =

170 mg/dL * 0.0025 dL = 0.425 mg

The minimum mass of cholesterol that the new system must be able to detect is 0.43 milligrams.

7 0

2 years ago

Which scenario most likely reveals an organism lacking the proper reactants for cellular respiration? a tree responding to a fun

Lorico [155]

I believe that it's an exhausted bear. Cellular respiration is the way plants and animals receive energy. If the bear is exhausted, it means it's cellular respiration is lacking.

4 0

2 years ago