Which characteristic is LEAST likely to be found in a species exhibiting K-selection?
Long lifespan
High fecundity
Large body size
Extensive parental care
Related Questions
Mutations are considered raw materials of evolution because they
Cause death of organism
Contribute to new variations
Are stable
Random
Darwin judged the fitness of an individual by
Its physical strength and ability to survive.
The number of offspring it produces that survive and reproduce.
Its lifespan.
Its ability to adapt to changing environments.
Mendel described the frequency of …A… for offsprings of a single …B…
Choose the correct options for A and B to complete the given NCERT statement
A: different types of genotypes; B: monohybrid cross
A: different types of phenotypes; B: dihybrid cross
A: different types of genotypes; B: test cross
A: different types of phenotypes; B: back cross
Darwinian ‘natural selection’ of evolution was inspired by
Thomas Malthus
Alfred Wallace
Dr. David Lack
August Weismann
Which process is primarily responsible for the increase in the frequency of beneficial alleles in a population?
Genetic drift
Gene flow
Mutation
Natural selection
Gradual accumulation of adaptation of changing environment leads to the origin of
New species
A genus
Old structures
All of these
Arrange the following events of modern concept of evolution sequentially: I. Genetic variations in population, II. Natural selection, III. Heredity IV. Isolation ,V. Speciation. The correct option is
I, III, II, IV, V
I, II, III, IV, V
II, I, III, IV, V
III, II, I, IV, V
According to the Darwin’s theory of evolution, differences between the species occurs due to
The disuse of body structures
The transmission of acquired characteristics
Natural selection
Mutagenic agents
Natural selection: I. tends to increase its characters that enhances survival and reproduction, II. causes adaptation, III. acts on organism phenotype, IV. mechanism of evolution explained by Darwin. Which of the following statements are correct?
I, II, III
I and II
II and IV
I and III
Biological concept of species is mainly based on
Reproductive isolation
Morphological features only
Methods of reproduction only
Morphology and methods of reproduction
