½
¾
¼
1
Correct answer is C
The expected genotype ratio when two heterozygotes are crossed is 1 (homozygous dominant) : 2 (heterozygous) : 1 (homozygous recessive).
All living organisms are constantly involved in a struggle for existence. This was proposed by
Morgan
Darwin
Lamarck
Wallace
Correct answer is B
No explanation has been provided for this answer.
An example of a poikilothermic organism is a
Lizard
Cockroach
rabbit
bird
Correct answer is A
No explanation has been provided for this answer.
The stream-lined shape of fishes is an adaptation for
Securing mates
easy movement
obtaining food
defence and attack
Correct answer is B
No explanation has been provided for this answer.
One of the advantages of outbreeding is
pests tolerance
disease resistance
fast growth
height
Correct answer is B
No explanation has been provided for this answer.