Class 10 S Chand Biology Solutions. We covered all the Class 10 S Chand Biology Solutions in this post for free so that you can practice well for the exam.
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Class 10 S Chand Biology Objective Solutions for Students
The main factor of evolution is
(a) Mutation
(b) Achieved quality
(c) Vaginal birth
(d) Natural selection
Option d – Natural selection
Which of the following situations would most likely result in the highest rate of natural selection?
(a) Reproduction by asexual method
(b) Low mutation in a stable environment
(c) Little competition
(d) Reproduction by sexual method
Option d – Reproduction by sexual method
Genetic drift operates in
(a) large isolated populations
(b) small isolated populations
(c) fast reproductive populations
(d) slow reproductive populations
Option b – small isolated populations
The biological species concept of organisms is based on
(a) morphological traits
(b) evolutionary traits
(c) reproductive isolation
(d) geographical isolation
Option c – reproductive isolation
(a) phylogenetic species concept
(b) morphological species concept
(c) genetic species concept
(d) biological species concept
Option d – biological species concept
The biological concept of species is mainly based on
(a) reproductive isolation
(b) morphological features only
(c) method of reproduction only
(d) morphology and method of reproduction
Option d – morphology and method of reproduction
We covered all the class 10 s chand biology solutions above in this post for free so that you can practice well for the exam.
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