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olchik [2.2K]
2 years ago
6

Please please help me ill give 100 points

Biology
1 answer:
dedylja [7]2 years ago
3 0

Explanation:

For Organelles that are the same are

Nucleus

mitochondria

endoplasmic reticulum

For Organelles that are not the same are

cell wall

chloroplasts

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The table compares prokaryotes, plant cells, and animal cells
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Answer:

The answer is in the picture

Explanation:

I don't really know how to explain I mean cells were just made that way so I hope this answer helped.

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In ducks, the trait for normal feathers is dominant to the trait for silky feathers. If
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Answer: The genotype ratio is 2Ff : 2ff

The phenotype ratio is two normal feathered birds to two silky feathered birds.

Explanation: Let F represent the gene for normal feather and f represent the gene for silky feather. F is dominant while f is recessive, therefore a male that is hybrid for trait of normal feather is heterozygous and will have a genotype of Ff, a female that is homozygous for silky feather will have a genotype of ff.

A cross between Ff and ff will yield 2Ff birds and 2ff birds. Since F is dominant, a bird having genotype of Ff will manifest outwardly as blue feathered birds while ff will manifest outwardly as silky feathered birds because f is recessive and must occur in a homozygous condition in order to manifest phenotypically. Therefore, the genotype ratio is 2Ff: 2ff.

See the punnett square attached for more information

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3 years ago
Most land-dwelling invertebrates and all of the amphibians _____. _____ Select one: a. are ectothermic organisms with variable b
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A.)are ectothermic organisms with variable body temperatures.

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Invertebrates animal are animals that lack a backbone, Land invertebrates include insects,spiders, centipedes ,coelenterate, an arthropod, mollusc and the rest.

Ectotherms are also called called cold-blooded animal because their bl body temperature regulation is dependendent on external sources, such as sunlight or a heated rock surface. Some of the examples of ectotherms are fishes, amphibians, invertebratesand reptiles. The aquatic ectotherms body temperature is usually compare closely to the temperature of the surrounding water

Ectothermic species that lives in temperate regions usually experience rapid and potentially stressful changes in body temperature simply because of weather changes even among amphibians there is variation in their temperature

It is believed that naturally occurring periods of temperature variation negatively impact amphibian health.

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