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AlekseyPX
3 years ago
7

The "Lucy" fossil is famous because:

Biology
1 answer:
stiv31 [10]3 years ago
4 0

Answer:

D. her skeleton was 40% intact and undisturbed

Explanation:

Lucy was one of the most important discoveries in human evolution. Before the finding of Lucy majorities of the human ancestor bones were not much more than only some bone fragments.

Lucy was the first most complete Australopithecus which was ever found. Lucy was approximately 40% complete fossil. It was found that her brain size was smaller than today's man but she was bipedalism. She was a new species of Australopithecus- Australopithecus afarensis. So the right answer is D.

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A normal adult's pulse pressure should range from _____ to _____ mm hg.
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30 to 40.

Hope this helps !

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6 0
3 years ago
Is paper abotivc or biomtic
Lana71 [14]

Hi there!


Biotic means that something is living, and abiotic means something isn't alive. Paper, since it came from trees, a living thing, is a biotic factor.


Hope this helps!

Message me if you need anything else! I'd be happy to help you! :D

7 0
3 years ago
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The size of a food chain can vary, but the number of levels that a food chain can reach is limited. Why does this limit exist ?
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Producers are limited by consumers.

Explanation:

7 0
3 years ago
What is the typical F2 ratio in the case of dominant epistasis?
inysia [295]

Answer:

12:3:1

Explanation:

<em>The typical F2 ratio in cases of dominant epistasis is 12:3:1.</em>

<u>The epistasis is a form of gene interaction in which an allele in one locus interacts with and modifies the effects of alleles in another locus</u>. There are different types of epistasis depending on the type of alleles that are interacting. These include:

  • Dominant/simple epistasis: Here, a dominant allele on one locus suppresses the expression of both alleles on another locus irrespective of whether they are dominant or recessive. Instead of the Mendelian dihybrid F2 ratio of 9:3:3:1, what is obtained is 12:3:1. Examples of this type of gene interaction are found in seed coat color in barley, skin color in mice, etc.
  • Other types of epistasis include <em>recessive epistasis (9:3:4), dominant inhibitory epistasis (13:3), duplicate recessive epistasis (9:7), duplicate dominant epistasis (15:1), and polymeric gene interaction (9:6:1).</em>
5 0
3 years ago
The original regimen known as Pasteurization consisted of:
algol13

Answer:

The correct option is: 4. Heat at 62.8 degrees C for 30 minutes

Explanation:

Pasteurization is the process or technique of heating packaged as well as the unpackaged liquid food, to remove pathogens and extend the shelf life. In this process,<u> the food is usually heated at temperatures below 100 °C.</u>

Originally, this process involved heating the food at 72.2 °C for 15 seconds and <u>62.8 °C (145 °F) for 30 minutes, for batch pasteurization.</u>

4 0
2 years ago
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