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3 years ago

Look at the sample of sedimentary rock to determine which fossil is the oldest.

Biology

2 answers:

zysi [14]3 years ago

4 0

.....

Z zz

Ostrovityanka [42]3 years ago

4 0

Answer:

Option (D)- which is fossil 4, as given in the image

Explanation:

From the law of superposition of rocks, it is known that the rock layer forming the bottom of an undisturbed sedimentary sequence are the oldest rocks because they those sediments were first deposited there and due to compaction and lithification it formed a rock layer, and subsequently new sediments are deposited on top of it. The rocks that are found to be present at the apex portion of a rock sequence signifies the youngest rocks, where the recent sediments are deposited.

So the fossils present in the bottom layers will be oldest and those fossils that are present on the top rock layers are the youngest.

Thus, the fossil sample number 4 (trilobites), as given in the image is the oldest fossil.

Hence, the correct answer is option (D), which is fossil 4.

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Answer:

D) infectious proteins with no associated nucleic acid.

Explanation:

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2 years ago

Select the correct statements about glycolysis. a) Major products of glycolysis include pyruvate, ATP , and NADH . b) Glycolysis

dalvyx [7]

Answer:

a). Major products of glycolysis include pyruvate, ATP , and NADH

b) Glycolysis is the process by which glucose is converted to two molecules of pyruvate.

Explanation:

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2 years ago

2. How does temperature change in the troposphere?

velikii [3]

Answer:

OPTION-A IS CORRECT

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Explanation:

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2 years ago

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Which of the following statements is false in reference to heart regulation? at rest, parasympathetic stimulation predominates b

scoray [572]

<h2>Baroreceptors </h2>

Explanation:

Baroreceptors are splash type nerve endings in the walls of veins and the heart that are invigorated by without a doubt the degree of, and changes in, blood vessel pressure. They are amazingly rich in the mass of the bifurcation of the inner carotid corridors (carotid sinus) and in the mass of the aortic curve. The essential site of end of baroreceptor afferent strands is the NTS.
The capacity of the baroreceptors is to keep up foundational circulatory strain at a moderately steady level, particularly during an adjustment in body position. Flawless baroreceptors are very viable in keeping quick changes in pulse from minute to minute or hour to hour, but since of their versatility to delayed changes of circulatory strain (> 2 or 3 days), the framework is unequipped for long term regulation of blood vessel pressure.

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3 years ago

Before starch can enter a cell, it must be

SOVA2 [1]

Answer:

Explanation:

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3 years ago

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