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I am Lyosha [343]
3 years ago
10

Identify what A and B are.

Biology
1 answer:
Alinara [238K]3 years ago
6 0

Answer:

Answer b is the right one

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For a human baby to be born a boy he must receive A. an X chromosome from the father. B. a Y chromosome from the mother. C. a Y
diamong [38]
C. a Y chromosome from his father

This is because boys have one X and one Y chromosome, while girls have 2 X's, so the Y must come from the father.

Hope this helps :D
5 0
3 years ago
Enkephalins and endorphins are peptides that act like morphine. True or False
mariarad [96]

Answer:

True.

Explanation:

Enkephalins and endorphins are endogenous peptides while morphine is an exogenous peptide.

Enkephalins and endorphins are powerful analgesics 18 to 500 times more than morphine. Hence, morphine is less analgesic than enkephalins and endorphins.

Enkephalins and endorphins act on the  mu, kappa , delta receptors and morphine also acts on the same receptors. All of them has same effects on the body.

Hence, Enkephalins and endorphins are peptides that act like morphine.

4 0
4 years ago
Read 2 more answers
A car with a mass of 1,324 kilograms, traveling at a speed of 20 meters/second, crashes into a wall and stops. What is the kinet
Leto [7]

The kinetic energy of a car with a mass of 1,324 kilograms, traveling at a speed of 20 meters seconds is 264800J.

<h3>How to calculate kinetic energy?</h3>

The kinetic energy of a moving car can be calculated using the following formula:

K.E = ½ × m × v²

Where;

  • K.E = kinetic energy
  • m = mass
  • v = velocity

K.E = ½ × 1324 × 20²

K.E = 264800J

Therefore, the kinetic energy of a car with a mass of 1,324 kilograms, traveling at a speed of 20 meters seconds is 264800J.

Learn more about kinetic energy at: brainly.com/question/999862

#SPJ1

8 0
2 years ago
Translation requires ribosomes to read the nucleotides of the mrna chain to be read as triplicates and matched with a correspond
galina1969 [7]
Translation is converting the mRNA code from DNA to functional proteins. The requirements for translation to occur is an mRNA strand in the cytoplasm from the nucleus, ribosomes, and tRNA containing a specific amino acid. 

The first step is initiation where the ribosomal subunits attach to the mRNA strand then the tRNA will bind to the start codon (the mRNA sequence that signals the start of translation or AUG). The next step is the elongation phase where the subsequent codons are recognized and the respective amino acid from the tRNA is attached to the growing chain. Lastly, the termination phase where the growing amino acid chain will detach from the mRNA through the recognition of the stop codon (UAG, UGA, UAA).

8 0
3 years ago
Which of the following scenarios would be an example of diffusion? A.when you inhale oxygen into your lungs,it is sent through y
ankoles [38]

Diffusion is defined as the movement of particles from higher concentration area to lower concentration areas. It continues until the concentration of substances is uniform throughout.

So, the best possible answer to this question is option A - when you inhale oxygen into your lungs,it is sent through your bloodstream to the rest of your body.


4 0
3 years ago
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