Evolution Chapter-Wise Test 13

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which structure in whales, bats, and humans is an example of homologous organs?

Skin
Forelimbs
Eyes
Teeth
2

Forelimbs in whales, bats, and humans are homologous organs, indicating common ancestry despite different functions.

Which of the following is incorrect?

Natural selection favors individuals with traits that increase survival and reproduction.
Analogous organs have similar functions but different evolutionary origins.
Panspermia proposes that life originated from non-living organic molecules.
Mutation introduces genetic variation into populations.
3

Panspermia proposes that life came from outer space, not from non-living organic molecules.

Which species, with a brain size of 1400 cc, exhibited cultural behaviors like burying their dead?

Homo erectus
Neanderthal Man
Homo sapiens
Australopithecus
2

Neanderthal Man, with a brain size of 1400 cc, displayed cultural behaviors like burying their dead.

Which of the following is incorrect?

Darwin’s theory is based on the concept of natural selection.
Hugo de Vries proposed that mutations cause evolution.
Adaptive radiation is also known as divergent evolution.
The Hardy-Weinberg Principle states that allele frequencies change continuously in a stable population.
4

The Hardy-Weinberg Principle states that allele frequencies remain constant in a population unless disturbed by evolutionary forces.

Which of the following statements is correct?

Reproductive isolation does not influence speciation.
Genetic recombination increases genetic diversity in populations.
Industrial melanism is unrelated to environmental changes.
The Hardy-Weinberg principle allows for continuous allele frequency changes in stable populations.
2

Genetic recombination increases genetic diversity, contributing to evolutionary processes.

Which of the following is correct?

The first life forms on Earth were likely aerobic.
The theory of chemical evolution is based on the synthesis of organic molecules from inorganic substances.
Lamarck’s theory is based on genetic inheritance.
Genetic drift is more significant in large populations.
2

Chemical evolution suggests that life originated from simple inorganic substances through gradual chemical processes.

Which of the following is incorrect?

Darwin’s theory emphasizes natural selection.
Hardy-Weinberg Principle explains the evolutionary change in populations.
Adaptive radiation refers to the evolution of different species from a common ancestor.
Lamarck’s theory of use and disuse is widely accepted today.
4

Lamarck’s theory of use and disuse is not widely accepted; Darwin’s theory of natural selection is the accepted mechanism of evolution.

Which of the following is incorrect?

Homo sapiens is the only surviving species of the genus Homo.
Mutation introduces genetic variability into populations.
Panspermia suggests that life originated from non-living organic molecules on Earth.
Adaptive radiation leads to species diversification from a common ancestor.
3

Panspermia suggests that life came from outer space, not from non-living organic molecules on Earth.

Which group of mammals, such as whales and dolphins, are adapted for aquatic life?

Monotremes
Marsupials
Cetaceans
Rodents
3

Cetaceans, including whales and dolphins, are mammals adapted for life in water.

Which of the following is incorrect?

Fossils provide insights into extinct species and evolutionary history.
Genetic drift is more pronounced in small populations.
Homo sapiens appeared before Homo erectus.
Mutation introduces new alleles into the gene pool.
3

Homo erectus appeared before Homo sapiens in the evolutionary timeline.

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