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oee [108]
2 years ago
7

How do index fossils help scientists?

Biology
1 answer:
krek1111 [17]2 years ago
5 0
Answer: Index fossils are used to identify layers of rocks. The layers will form an arrangement that relates to their age. In simpler terms, a layer that contains fossils are unique to that certain layer.
Index fossils are fossils that are mostly used by scientists due to it being easily found anywhere around the world and in abundant amounts. It can also be easily identified since they are fossils of widely varied organisms that lived during one short time period.
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Fill in the blank; Mercury's _______ strongly resembles that of _______'s ________, with very large impact ________
algol13
Please find the answers CAPITALIZED below.
Mercury's SURFACE strongly resembles that of EARTH's SURFACE, with very large impact CRATERS

Mercury, the second densest of all planets shares an exterior similarity with the Earth's moon. Given the rough-like exterior feature of the moon, Mercury surface is scarred by craters due to the collisions of comets and meteroids. 
4 0
3 years ago
Match the function to the correct part of the neuron.
Ratling [72]

Answer: Huh?

Explanation:

Where the picture so I can see what you are talking about.

6 0
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Radiation can cause breaks in human chromosomes. However, insects can survive much higher lecels of exposure. Why?
galben [10]

Explanation:

The influence from radioactivity is inversely proportional to the number of chromosomes , since , humans have more DNA , chromosomes than the insects , and  therefore , due to less chromosomes in insects , they are more resistant towards radioactivity .

As the target of the radiation is the DNA .

Hence , It is clear that insect due to lesser DNA are less prone to Radiations .

4 0
3 years ago
Give one example of an extrinsic homeostatic mechanism overriding an intrinsic homeostatic process.
NeTakaya

Answer:

Extrinsic regulatory mechanisms are external and depend on the firing of some factor outside the population itself. Among them are interspecific competition, food and space restrictions, very strong climatic variations, weathering and inharmonious relationships with other populations (parasitism and predatism).

Good examples of interspecific competition appear when rabbits, caves, rats compete for the same plant, or different fish and birds, such as the heron, vie for the same species of smaller fish. This is because these different species keep their populations in the same ecological niche. Competition is often so strong that some species eventually, as one example of an extrinsic homeostatic mechanism overriding an intrinsic homeostatic process is their disappearance or migration to other regions.

In this competition, the presence of adaptations among individuals in the population that promote better food search, speed, vision, and others can make the difference between elimination and survival.

8 0
2 years ago
Que pasaría si que pasaría si que pasaría si?
Sergeeva-Olga [200]

Answer:

What if what if what if what if?

Explanation:

What if- I turn into a What if ?

3 0
2 years ago
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