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kogti [31]
3 years ago
13

Did Angiosperms evolved before gymnosperms.

Biology
1 answer:
bulgar [2K]3 years ago
3 0
Gymnosperms evolved about 319 million years ago. angiosperms evolved about 125 million years ago.


hope this helps
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the prokaryotes in figure 2 live in extremely hot deep-sea vents. these prokaryotes do not have peptidoglycan in their cell wall
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Answer:

A. Are classified in the Domain Archaea

Explanation:

Your clues for this is:

Extremely hot

do not have peptidoglycan in the cell walls

These are characteristics of the prokaryotes under the Domain Archaea. These characteristics also differentiate them from the prokaryotes of Domain Bacteria.

Prokaryotes under the Domain Archaea are known for being able to thrive in extreme environments, both hot and cold. They also do not have peptidoglycan in the cell walls, instead they only have S-layers or surface layers.  

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3 years ago
Given the choice of 4 bases and the number of bases needed to make up a codon, how many possible codons are there? 16 23 64 128
Lilit [14]

Answer:

64

Explanation:

A codon is a group of three nucleotide sequence in a mRNA that specifies a particular amino acid acid. There are only four nucleotides composed of the four nitrogenous bases viz: Adenine, Guanine, Cytosine and Thymine/Uracil.

A codon is composed of only three of these nucleotide bases at a time. Hence, considering the number of nucleotide bases that can make up one codon and the 4 nucleotide bases, there can only be 4^3 = 64 combinations of the four nucleotides. This means that there are 64 possible codons.

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3 years ago
This is the outermost layer of connective tissue surrounding a skeletal muscle.
Archy [21]

Answer: I believe this is called the epimysium

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In angiosperms, a zygote and endosperm form as a result of
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