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klasskru [66]
2 years ago
7

Living things can weather rocks by both mechanical and chemical means. true or false

Biology
1 answer:
Sati [7]2 years ago
4 0

I think the answer is False

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A male cardinal's red color is an example of a trait affected by natural selection. The females of the species choose mates
kompoz [17]

Answer:

In the cardinals, if the females start using a different criterion than the color of the feather when they choose couple, most likely to happen is that decreased variation in the shades of red because no form of the trait is advantageous.

Explanation:

Options for this question are:

  • <em>Increased variation in the shades of red because the selection pressure has been relieved.</em>
  • <em>Increased variation in the shades of red because the cardinals try different ways to impress the females.</em>
  • <em>Decreased variation in the shades of red because no form of the trait is advantageous.</em>
  • <em>Decreased variation in the shades of red because the only reason for variation was selection pressure.</em>

In the context of natural selection, male cardinals court females using the coloring of their feathers as a form of sexual selection. This means that the shades of red in the feathers are a selection criterion in these birds, and the more visible shades represent an advantage.

But, if the selection criterion was not the color of the feathers, this trait would no longer represent an advantage in the competition between the males to be chosen as a mate. Instead, the trait that would determine sexual selection would be the one that experiences an increase in its variation<em>.</em>

5 0
3 years ago
There is a step 4 below i couldent fit in the pic
sweet [91]

1. Nucleus step1: DNA is transcribed into mRNA

2. Ribosome step2: mRNA is translated into protein

3. Endoplasmic Reticulum step 3: Newly synthesised proteins are transported.

4. Golgi apparatus Step 4: Proteins are modified then transported away

In Golgi body or apparatus, the proteins are modified, sorted and packaging occurs for secretion.

3 0
3 years ago
What is the interaction between organisms or animals for resouces mates shelter and space
Sever21 [200]

Answer:

Symbiosis

Explanation:

Another category of interactions between organisms has to do with close, usually long-term interaction between different types of organisms. These interactions are called symbiosis

3 0
2 years ago
Read 2 more answers
What inspired the free speech movement
kondor19780726 [428]
The struggle for the civil rights 

6 0
3 years ago
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3c. explain what a codon is. include the words "nucleotides" and "amino acid" in your answer.
Harrizon [31]
Each combination of 3 nucleotides are called a codon. The codons then determine which amino acids are going to be inserted in the protein
5 0
3 years ago
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