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vodka [1.7K]
3 years ago
11

Animal life appeared on land before in the water. True False

Biology
1 answer:
spayn [35]3 years ago
6 0
The answer is False, life on earth originated from water creatures who emerged from the seas to colonize land. 
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The vertical drop of a stream channel over a certain distance is called the _____.
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Gradient should be in the blank, hope that helps
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2 years ago
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Flura [38]

Answer:

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Assume that in cattle a spotted coat is dominant to an even coat, short horns are dominant to long horns, and the traits for coa
kow [346]

Answer:

C. 1/4

Explanation:

Let's assume that the allele for the spotted coat is "S" and the one for the even coat is "s". The allele "L" gives short horns while the recessive allele "l" imparts long horns. The genotype of the cattle heterozygous for both traits would be SsLl. A cross between two heterozygous cattle would produce progeny in following phenotype ratio=

9 spotted coat and short horns: 3 even coat and short horns: 3 spotted coat and long horns: 1 even coat and long horns.

Therefore, the proportion of the progeny with long horns = 4/16= 1/4

8 0
3 years ago
The complex of dna and protein that makes up a eukaryotic chromosome is properly called __________.
victus00 [196]

The complex of DNA and protein that makes up a eukaryotic chromosome is properly called <u>chromatin .</u>

<u></u>

  • Chromatin is a complex of DNA and proteins that forms chromosomes within the nucleus of eukaryotic cells.

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What is chromatin in cell?

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Where is chromatin found?

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5 0
1 year ago
Which macromolecules were present in the unknown solution? In the milk?
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Proteins are biological macromolecule and mostly composed of enzymes.<span> Proteins play a role in the physical make-up of a cell or acts as a cytoskeleton –maintains cell shape and figure. These proteins plays different roles and works with nucleic acids and other macromolecules in the cells including cell cycle, cell adhesion, immune response and cell indicators. <span> </span></span>

6 0
3 years ago
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