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gavmur [86]
3 years ago
10

Plz help ASAP plz and thanks

Biology
1 answer:
kompoz [17]3 years ago
8 0

Answer:

B.

Explanation:

B. is the best choice here because it is the only characteristic listed that only describes a eukaryotic cell. Both prokaryotic and eukaryotic cells have cell membranes, cytoplasm, and cillia. However, only eukaryotic cells have a nucleus to store their DNA.

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If a DNA molecule is found to be composed of 35% thymine, what percentage of cytosine would be expected, and why?
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We use Chargaff's rule to get the answer. [A] + [G] = [C]+ [T].    [A] + [G] + [C] + [T] = 100% Where is A is Adenine, G is Gaunine, T is Thymine and C is Cytosine. In DNA, Adenine always pairs with Thymine, and Guanine always pairs with Cytosine. Therefore if Thymine is 35%, then Adenine will also be 35% to make 70% in total. The remaining percentage will be 100% - 70% = 30%. The 30% will be shared equally among Cytosine and Guanine, at 15% each. Therefore Cytosine will be 15% 
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If a human wanted to have the most efficient absorption of energy, what trophic level would they want to eat from?
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Hermaphrodite, cellular respiration, invertebrate, medusae, metamorphosis, bilateral symmetry, coelomate, acoelomate1. an animal
givi [52]

Answer:

1. an animal without a body cavity acoelomate

2. condition in which the left side of an organism's body is a mirror image of the right side bilateral symmetry

3. a series of chemical reactions that break down sugars and produce energy cellular respiration

4. an animal with a fluid-filled body cavity that lies within the mesoderm coelomate

5. an animal that has both male and female reproductive organs Hermaphrodite

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7. free-floating aquatic animals with a structure similar to a jellyfish medusae

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Explanation:

Body cavity is a fluid-filled space inside a multicellular organism  with the protective role. The coelom is the main body cavity, found in allmost all animals. Those that don't have coelom are called acoelomata. An example are Platyhelminthes.

Symmetry refers to the proportion of an animal: its reflection, rotation or scaling. The body symmetry of animals might be radial, bilateral, spherical or asymmetric.

Two major group of animals are Vertebrate and Invertebrate, with or without with backbone.

Hermaphrodite organisms are those that contain both, male and female reproductive organs, characteristic for invertebrates.

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Multiple sperm must reach the egg for fertilization to occur? true or False
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