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3 years ago

Which statements describe long-term environmental changes

Biology

1 answer:

stellarik [79]3 years ago

3 0

Answer:

Deforestation, Extinction, pollution and more.

Explanation:

If something happens over a long period of time, like deforestation for example. Deforestation is when people cut down trees in a forest and leave a huge area of dirt to make way for roads, farms, or anything else. In order to get the forest back, it would take years and years for it to become a forest again.

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Agata [3.3K]

It's C. RNA uses Uracil in place of Thymine

TGCAAT
ACGUUA

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3 years ago

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GIVING 20 POINTS!!! PLEASE HELP!!! WILL MAKE BRAINLIEST!!!!

9966 [12]

Answer:

The correct answer is D sister chromatids;centromere

Explanation:

After DNA replication during s phase or synthesis phase of interphase of the cell cycle,each chromosome has a copy and the cell that is newly formed is now 4n.

We cal these identical pairs sister chromatids and they are held together by a centromere

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3 years ago

A cell that has two of every kind of chromosome is

deff fn [24]

Answer:

B. diploid

Explanation:

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2 years ago

Now consider a single base mutation in a codon for leucine that creates a codon for phenylalanine. A true reversion changes the

madam [21]

Answer:

options A, B, D and E

Explanation:

leucine codons include: UUA, UUG, CUU, CUC, CUA, CUG

phenylalanine codons include: UUU, UUC.

CUU

replace C with U to give

UUU phenylalanine codon

replace underlined with A

UUA leucine codon

CUC

replace underlined with U

UUC phenylalanine codon

replace underlined with A or G

UUA, UUG leucine codons

UUG

replace underlined with U

UUU phenylalanine codons

replace underlined with C

CUU leucine codon

UUA

replace underlined with U or C

UUU or UUC phenylalanine codons

replace U with C

CUU or CUC leucine codons

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2 years ago

Compare and contrast the skin and GI tract microbiome?

Vikentia [17]

In contrast to the stratified squamous epithelium of the skin, the intestinal barrier is composed of a single layer of columnar epithelial cells However, this single layer of intestinal epithelial cells is made of diverse cell types with absorptive, secretory, and immune function

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