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Rina8888 [55]
3 years ago
9

Human birth weights range very narrowly between 5.5 and 8.5 pounds. Babies much smaller than 5.5 lbs. suffer a higher mortality

due to low birth weight, while babies much larger than 8.5 lbs. can cause complications during birth and also have a higher mortality rate. This is an example of:a. Stabilizing selection b, Sexual selection c. Genetic drift d. Reproductive isolation e. Disruptive selection
Biology
1 answer:
Margarita [4]3 years ago
3 0

Answer:

a.  Stabilizing selection

Explanation:

Babies lower than 5.5lbs would suffer from various disorder because of low birth weight as their body would not be able to compete as well they would have weak immune system and malnourishment. Whereas high birth weight carry the equally above risk as their body wont be able to cope up and organs become insensitive to various hormones. for the survival the birth weight should be within a median range so that it would be favorable for themselves and surroundings.

Stabilizing selection occurs when a population stabilizes on a particular trait value and genetic diversity decreases. As in this example, an average baby weight has to favour against extreme variation for it's better survival.

therefore, this is an example of stabilizing selection.

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Filtrate is formed as fluid is forced through the walls of the glomerulus and
Goryan [66]

Answer:

initially, collects in the structure indicated by the letter B

Explanation:

Filtrate is formed as fluid is forced through the walls of the glomerulus and, initially, collects in the structure indicated by the letter B.

Urine formed by a kidney collects in the renal pelvis before being drained from the kidney by the urethra and transported to the urinary bladder.

The process by which glomerulus filtration occurs is called renal ultrafiltration. The force of hydrostatic pressure in the glomerulus (the force of pressure exerted from the pressure of the blood vessel itself) is the driving force that pushes filtrate out of the capillaries and into the slits in the nephron.

3 0
4 years ago
if the bleeding period of a woman is indicated by days of 1-5, then the days when the woman is highly fertile is between______,s
ladessa [460]

2-4 Explanation:

i do not know what u mint by between_____,show how it is?

4 0
3 years ago
Which of the following best describes the relationship between the sun and Jupiter?
Softa [21]

Answer: B) Jupiter and the sun have a similar composition.

Explanation:The only significant difference between the sun and Jupiter is in the sizes i.e jupiter is smaller compared to the size of the sun.

However their similarities is in their composition i.e what they are made up (helium and hydrogen).

The core of Jupiter is made up of liquid metallic hydrogen and the sun's core or center is also made up 34% mass plasma of hydrogen.

So option B (Jupiter and the sun have a similar composition) best describes the relationship between Jupiter and the sun.

3 0
4 years ago
How do cells behave in a multicellular protist?
Sindrei [870]

Answer:

2.They exhibit cell specialization.

Explanation:

A protist is an eukaryotic organism that can either be unicellular or multicellular. In the multicellular protist i.e. many cells, different types of cells are needed to bring about the organism's life processes. The different types of cells perform a specific different function in the organism.

The way that an organism makes it cells specialized to perform different functions is called Cell Specialization or differentiation. All multicellular organism, including a multicellular protist, contain many cells that have been specialized to perform different functions. Hence, the many cells of a multicellular protist will exhibit specialization in order to perform varying functions in the organism.

7 0
3 years ago
Read 2 more answers
Determine whether the following events occur during initiation, elongation, or termination. This is regarding protein synthesis.
erik [133]

Answer:

The provided events can be classified as:

Initiation

  • In prokaryotes, the Shine-Dalgarno sequence pairs with rRNA.
  • In E. coli, mRNA binds to the 30S ribosomal subunit.

Elongation

  • In E. coli, EF-Tu delivers an aminoacyl-tRNA to the ribosome
  • Initiator tRNA enters the P site.
  • In E. coli, EF-Tu hydrolyzes.
  • Translocation occurs

Termination

  • The ribosome has mRNA, an empty A site, and deacylated tRNA in the P site

Translation is the process by which polypeptide chain is synthesized based on the codon sequence of the mRNA (messenger ribonucleic acid).

It is divided into three stages:

Initiation: The small and large sub-units of the ribosome get assembled around the initiation codon. It forms three sites (A, P, and E site) for interaction tRNA and mRNA.

Elongation: Specific charged-tRNA enters from A site and transfers its amino acid to the growing polypeptide chain in P site. Uncharged tRNA exit from the E site. Ribosome moves or translocates to the next  codon.

Termination: As soon as ribosome reaches the termination codon, it releases the newly synthesized polypeptide chain.


8 0
3 years ago
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