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krok68 [10]
2 years ago
12

What shows the flow of energy in a food chain? WILL MARK BRAINLIEST

Biology
1 answer:
soldi70 [24.7K]2 years ago
3 0

Do they have a picture for this question since you said "Shows"?

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What are the primary sites of protein production in a living eukaryotic cell?
Scorpion4ik [409]
Hi!

The answer is ribosomes.

Hope this helps!

-Payshence xoxo
3 0
3 years ago
Do all sperm look alike? What are some differences that sperm cells can have?
igor_vitrenko [27]

Answer:

The more different the human is between human sperm to the eggs might just look different that every sperm is different because of the way their inherited DNA.

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3 0
3 years ago
Please explain the difference between a frameshift mutation and a base substitution mutation.
harina [27]

Answer:

A frameshift changes every codon past it. A base substitution only changes one codon.

Explanation:

DNA is comprised of nucleotides (A, C, T, G) that make up amino acids. Every three bases is called a codon and represents an amino acid.

In a frameshift mutation, a nucleotide is either added or deleted from the sequence. This offsets the entire sequence after it because the reading frame shifts. Here's an example:

ACTGCTATCGTCATC

If another T is added in between the first and second codons, then every codon after will be changed.

ACT>T<GCTATCGTCATC

A substitution mutation is usually less severe, as it only alters one codon in the sequence. These occur when one nucleotide is replaced by another one. Here's an example:

ACTGCTATCGTCATC

Let's say the first G is replaced by a T.

ACT>T<CTATCGTCATC

As you can see, none of the other codons changed.

Typically, a frameshift mutation is considered worse than a substitution mutation.

7 0
3 years ago
Read 2 more answers
1. Muscles move tendons attached to bone by performing an action called _______.
REY [17]

1. Contraction

2. Actin

3. Tendons

4. Epidermis

5. Dermis

6. Acne

7. A nerve signal from the brain arrives at the intersection of the nerve and muscle cells and releases acetylcholine from the neuron. This triggers chemical changes in the muscle cell involving ions, including Ca2+. Calcium triggers the thick filaments, made of myosin, to attach to the thin filaments, made of actin, in the muscle cell, and the myosin pulls the actin toward the center of the muscle cell. ATP causes the release of the actin fibers, allowing the muscle to relax and the process to begin again.

For Penn Foster.

5 0
3 years ago
Please help me with this!
zepelin [54]
Small tt because there are large TT on the top
7 0
3 years ago
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