Question

In a species, the weight of newborn ranges from 2
to 5 kg. 97% of the newborn with an average weight
between 3 to 3.3kg survive whereas 99% of the
infants born with weights from 2 to 2.5 kg or 4.5
to 5 kg die. Which type of selection process is taking
place ?​

Answer 1

Heya!!

___________________________⭐⭐⭐

⚡⚡ Types of natural selection :-

(1) Stabilizing:- it was the average of normal phenotype and eliminates the extreme variants.

→ pics gets higher and narrower because more individuals acquire mean character value.

This is your answer. ✔️✔️☑️

(2) Directional and progressive selection:-

→ peak shifts in one direction because more individuals acquired value other than the main character value.

❌❎ it is not answer because here in question it is given that other varients completely eliminates.

(3) Disruptive selection :-

→ it is the natural selection members of both extreme are selected simultaneously and average value get rejected.Two peaks are formed.

so, your answer is stabilizing selection.

hope it helps!!

#PhoeniX

Answer 2

Stabilizing selection

Explanation:

Natural selection is the mechanism by which the species evolve as it selects the species which are favoured by nature in terms of the reproductive success.

Nature selects the species in one of the three ways: stabilizing, disruptive and the directional.

In the given question, the intermediate weight category for the trait is being favoured by nature as 97% of the newborn babies with the average between 3 to 3.3 kg survives and the babies with the extreme phenotype like babies with an average between the 2 to 2.5 and 4.5 to 5 kg is not favoured. and they die.

Since the intermediate trait is favoured therefore this will be considered as the stabilizing natural selection.

To learn more:

1. Natural selection: https://brainly.in/question/14858752