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Dvinal [7]
3 years ago
7

Natural selection chooses which variations become prevalent in a population through environmental pressures. Which of these is a

n environmental pressure which can lead to natural selection?
Biology
1 answer:
Maru [420]3 years ago
8 0
A drought could decrease an amount of food, or a competitor for the same food could.
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If cysteine is specified by the codons UGC and UGU, what are the anticodons present on tRNAs that carry cysteine?
MrRissso [65]

Answer:

AGC and ACA

Explanation:

Codons and anticodons are present in the form of triplets.Codons are present on the coding strand of DNA and on mRNA and their anticodon is present on transfer RNA.When codon present on mRNA binds to its anticodon on tRNA then appropriate amino acid is carried by tRNA on ribosomes for protein synthesis. For example, AGC and ACA anticodons are present on tRNA that binds to UGC and UGU on mRNA for amino acid cysteine.

7 0
2 years ago
Find the slope between (0,-7) and (7,0). Reduce it.<br> show work
lana66690 [7]

Answer:

\displaystyle m=1

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Algebra I</u>

  • Coordinates (x, y)
  • Slope Formula: \displaystyle m=\frac{y_2-y_1}{x_2-x_1}

Explanation:

<u>Step 1: Define</u>

Point (0, -7)

Point (7, 0)

<u>Step 2: Find slope </u><em><u>m</u></em>

Simply plug in the 2 coordinates into the slope formula to find slope <em>m</em>

  1. Substitute in points [Slope Formula]:                                                             \displaystyle m=\frac{0+7}{7-0}
  2. [Fraction] Add/Subtract:                                                                                 \displaystyle m=\frac{7}{7}
  3. [Fraction] Divide:                                                                                                \displaystyle m=1
5 0
3 years ago
Which one(s) contribute the most to the mass of a plant? 1. Soil Il. Carbon III. Water es ) I only B) || only c) I and III only
Eva8 [605]

Explanation:

i guess tha answer should be D

4 0
3 years ago
At a location, rainwater runs off the face of a cliff that is 15 meters high. How is the face of the cliff most likely to change
natka813 [3]

The answer is;  Physical weathering by water would carve out the face of the cliff.


The bottom of the cliff would register the greatest weathering because of the force of the water hitting the rocks in the fall. As a cave is curved from the base of the cliff, the overhanging part of the cliff eventually collapses hence retracting the cliff a small distance upstream of the river. The diagram below demonstrates this;


3 0
3 years ago
Which substance is constantly processed by some excretory organs even though it is not excreted by the excretory system?
jolli1 [7]
Blood is constantly processed by some excretory organs even though it is not excreted by the excretory system.
5 0
3 years ago
Read 2 more answers
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