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HACTEHA [7]
3 years ago
15

What is the tough outer layer of a seed called

Biology
1 answer:
defon3 years ago
7 0
It would be called the seed coat
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What information can a scientist learn directly from a single fossil? A. The organism's shape and size B. The life expectancy of
Elena L [17]

C. How the organism is related to others

Explanation:

From a single fossil, a scientist can learn how the organism is related to others. Fossils are the preserved remains of organisms that are usually found in rocks.

  • Organisms must posses certain characteristics to ensure their preservation as fossils.
  • Most organisms that are preserved usually have hard parts.
  • Some climatic influence can also arrest decay and provide a platform organisms to be preserved wholly.
  • Fossils are used for relative dating of events in nature.
  • They can also be used to determine how an organism is related to another.
  • This is called phylogeny. It is the study of evolution and how organisms relates to one another.
  • Fossils are very good and useful phylogenetic tools.

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3 years ago
What are some reasons for immunodeficiency?
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in sociology which term is used to refer to people who have shared experiences and interests and possibly loyalties? A. gatherin
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If you turned a frog egg upside down, you would expect it to reorient relative to gravity because?
lianna [129]

If you turned a frog egg upside down, you would expect it to reorient relative to gravity because the dense yolk granules concentrated in the vegetal hemisphere of the egg respond to gravity.

The frog egg is very large as compared to the normal egg cell. It is unevenly distributed with a top dark colored pole called animal pole and a light yolky pole called a vegetal pole.

The vegetal pole is concentrated with the yolk that is present for providing the nourishment to the growing embryo. The animal pole is the one from where the sperm enters and the development of embryo take place.

As the vegetal pole is denser as compared to animal pole so it will respond to the gravity and reorient along the direction of gravity.

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2 years ago
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