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Tanzania [10]
3 years ago
10

Jesslyn needs to create a project that shows geographic insulation in action in the city to make a video which of the following

would make the best project ASAP
Biology
1 answer:
kompoz [17]3 years ago
7 0

Answer:

a video that shows a large river that has penguin populations on both sides

Explanation:

Have A Great Day!

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What type of lenses were used for the first microscopes?
sergeinik [125]

Answer:

Here is some background information...

Explanation:

Leeuwenhoek (1633-1723) used melted glass balls to form lenses for apparently crude simple microscopes that nevertheless magnified up to 275 times! Modern tests have concluded that he could have achieved a resolution of two micrometres.

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2 years ago
Major functions of animals include obtaining food and oxygen, keeping internal conditions stable, movement and__
erma4kov [3.2K]
Answer choice B, reproduction
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3 years ago
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(02.04 MC) What does the theory of evolution tell us about how organisms adapt to their environment over time? Select one:
Gennadij [26K]

Answer:

d

Explanation:

Survival of the fittest.

5 0
3 years ago
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For two autosomal dominant genes, what is the probability that a cross between two heterozygotes (i.e. AaBb x AaBb) will produce
oksian1 [2.3K]

Answer:

1 in 16

Explanation:

When two heterozygotes (AaBb x AaBb) for two autosomal genes are crossed the expected probability for the offspring is 9 A-B-, 3 A-bb, 3 aaB- and 1 aabb. In other words, out of sixteen offspring, 9 are expected to be dominant on both genes (either homozygous AA or BB or heterozygous Aa or Bb), 3 are expected to be dominant on the A gene but recessive on the b gene, 3 are expected to be recessive on the a gene but dominant on the A gene, and only 1 is expected to be recessive on both genes aabb.

7 0
3 years ago
Classify each description as true of introns only, exons only, or both.A-present in eukaryotic genomesB-generally absent from ba
maxonik [38]

The right answers are:

A-present in eukaryotic genomes ==> Both exons and introns

B-generally absent from bacterial genomes ==> Introns

C-part of the final mRNA strand ==> Exons

D-code for an amino acid sequence ==> Exons

E-removed from initial mRNA strand prior to translation ==> Introns

F-present in the DNA used as the template for transcription ==> Both exons and introns

In the genes of eukaryotic organisms, the exons are the segments of an RNA precursor that are conserved in the RNA after splicing and that are found in mature RNA in the cytoplasm. The segments of the RNA precursor that are removed during splicing are called in opposition to introns. Exons are mainly found in messenger RNAs (mRNAs) encoding proteins. Some mRNAs may sometimes undergo an alternative splicing process in which one or more exons may be excised or some introns preserved in rare cases.

6 0
3 years ago
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