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Lerok [7]
3 years ago
5

Most of the animals in existence today had their origins during the:

Biology
1 answer:
frutty [35]3 years ago
4 0

Answer: During the Cambrian Explosion of Animal Life

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Based on what you know about natural selection, which of the following must be true if evolution is the explanation for what the
igor_vitrenko [27]

Answer:

The Grants's research shows that variation  within species increases the likelihood of the species' adapting to and surviving the environmental change.

Explanation:

The beaks of individual birds can change depending on what food is available.

Over time, individuals can evolve to better fit the environment by changing heritable traits.

Beak depth and length must affect survival and/or reproduction of birds.

 Beak depth and length must be heritable.

Beak depth and length must show variation among individuals of a single species.

8 0
3 years ago
1. At what pH do the following enzymes work best?<br> Suerase:<br> b. Trypsin:
tekilochka [14]

Answer:

1.7

b.Trypsin is an enzyme that helps us digest protein. In the small intestine, trypsin breaks down proteins, continuing the process of digestion that began in the stomach. It may also be referred to as a proteolytic enzyme, or proteinase. Trypsin is produced by the pancreas in an inactive form called trypsinogen.Apr 13, 2018

Explanation:

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2 years ago
What is true about elements and compounds? A. Elements contain two or more compounds. B. Compounds contain two or more elements.
spin [16.1K]

Answer: B) Compounds contain two or more elements

Explanation:

5 0
3 years ago
What would you need to provide in order for plants to carry out photosynthesis
IrinaVladis [17]
The answer to this question is:

Light (sunlight), water, and carbon dioxide! Oh, and chloroplasts. 
7 0
2 years ago
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What are some of the characteristics of life that plants must fulfill?
PIT_PIT [208]

The most characteristic of the plants which can fulfill is the use of energy, maintain homeostasis,and composed of the cells.

<u>Explanation:</u>

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USES OF ENERGY: The plant uses the energy of the sun to change the water and the carbon dioxide into the sugar called glucose and it is used by the plants for the energy.

CELLS: It has cell walls, cell membranes, and it is composed of cellulose, pectin, hemicellulose. The cell in the plants varies from species to species.

8 0
3 years ago
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