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Ksenya-84 [330]
2 years ago
13

What have we learned from fossil evidence about evolution?

Biology
1 answer:
Lyrx [107]2 years ago
6 0

Answer: the answer is B

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Identify one marine species with an outer layer which is similar to the chamois cloth, and one with an outer layer which is simi
Nezavi [6.7K]
Echinoderms, they are among the most common invertebrate animals in the marine environment of virtually any part of the world, among them we can find species such as sea cucumber , salmon and cod fish, they have chamois cloth like outer layer, then we have the Crinoids, another example of marine species with feather, popularly they are called sea lilies and feathery stars, they have a solid calcite skeleton; they were so abundant in the paleozoic seas that their remains formed large limestone thicknesses.
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What type of property cannot be seen just by observing with senses
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The atom? gas? either one of those two would work
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In a certain species of plant, the allele to produce green melons (G) is dominant over the allele to produce yellow melons (g).
marishachu [46]

Answer:

4.26

Explanation:

Let the green-melon parents be Gg, then we expect the cross with the yellow-melon plant gg so as to produce 50% Gg and other 50% of gg offspring. What we observed was that 53 green and a 41 yellow. Based on the total number of 94 offspring , we expected half and a half ratios to be 47 of each color.

                                Observed(o)   Expected(e)   (o-e)    $(o-e)^2$      $(o-e)^2/e$

Green-melon plant        53                    47               6          36             0.766

Yellow-melon plant        41                    47              -6          36             0.766

Therefore the chi-square value is 1.53 which is less than the critical value of 3.84. Therefore, the null hypothesis is accepted.

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What process happens in endoplasmic reticulum
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It produces proteins for the cell to function
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In DNA, only the _____ varies from one nucleotide to another.
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Only the bases varies from one nucleotide to another.

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