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Marrrta [24]
3 years ago
11

How do index fossils help scientist

Biology
2 answers:
Katena32 [7]3 years ago
7 0
Fossils are used to determine the ages of rock layers. Index fossils are the most useful for this.
Elena-2011 [213]3 years ago
4 0

Answer: C- They aid in comparison of rock layers at distant locations.

Explanation:

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Amino acids that are not manufactured by the body and must be derived from food sources are termed ____________ amino acids meta
ki77a [65]

essential amino acids.

the "essential" refers to it being necessary to derive them from the foods we eat, but in fact the amino acids that the body produces are just as essential to the proper functioning and health of our bodies.

5 0
3 years ago
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The sequencing of mitochondrial dna to trace changes in human ancestors over time involves which specialization of anthropology?
WARRIOR [948]
For the answer tot he questions above, the answer is "paleoanthropology"

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3 years ago
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r 4. Nervous 5. Endocrine 6. Cardiovascular 7. Lymphatic 8. Respiratory 9. Digestive 10. Urinary 11. Reproductive Which systems
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None of the above... Ingumentary system is the one that regulates body temperature. The ingumentary system is skin, hair , sweat glands and nails

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3 years ago
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Which arthropods are a part of the class maxillopoda?
kifflom [539]

Answer:

a) Maxillopoda is a diverse class of crustaceans including barnacles, copepods and a number of related animals. It does not appear to be a monophyletic group, and no single character unites all the members

b) General Characters of Hexapoda (Insects)

Ø A large taxa, includes insects and a small group of wingless arthropods.

Ø Body plan: 3 parts, head, thorax and abdomen.

Ø Head with six segments.

Ø Thorax with three pairs of jointed legs (hence the name hexapoda)

Ø Head bears a presegmental acron.

Ø Acron bears compound eyes.

7 0
3 years ago
What is the volume of a black hole?
Alex_Xolod [135]

Answer:

This value is 4*(pi)* (2Gm/c^2)^2 for nonspinning black holes, with G= Newton's constant, c= speed of light, and m= mass of the black hole. The 3-dimensional spatial volume inside a black hole, in contrast, depends explicitly on the definition of time, and can even be time dependent, or zero.

Explanation:

hope this helps

3 0
3 years ago
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