NEET BIOLOGY

GENETICS AND EVOLUTION

EVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A new predator moves into an area with a population of rabbits. The rabbits with longer back legs have an advantage because they can run faster and escape the predator. Which will be the most likely effect on the rabbit population?
A
The population will become extinct due to stress.
B
The rabbit population will produce fewer offspring
C
The rabbits with shorter back legs will learn to hide.
D
The future generations of rabbits will have longer legs.
Explanation: 

Detailed explanation-1: -The rabbits with longer back legs have an advantage because they can run faster and escape the predator. Which will be the most likely effect on the rabbit population? The population will become extinct due to stress.

Detailed explanation-2: -Animal Adaptations in the Tundra Biome The animals here tend to have thicker and warmer feathers and fur. Many of them have larger bodies and shorter arms, legs and tails which helps them retain their heat better and prevent heat loss. Many of the birds of the tundra have two coats of feathers to help keep them warm.

Detailed explanation-3: -Camouflage allows organisms to become almost invisible to predators. Some species have evolved morphological adaptations that allow them to blend in with their environments.

Detailed explanation-4: -Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism’s offspring).

Detailed explanation-5: -Summary: New research that analyzed more than 270 million years of data on animals shows that mammals and birds–both warm-blooded animals–may have a better chance of evolving and adapting to the Earth’s rapidly changing climate than their cold-blooded peers, reptiles and amphibians.

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