Answer:
It has a postanal tail.
It has pharyngeal arches.
Correct answer: A) Extension
Extension is a physical position that occurs when angle between the bones and the limbs of joint increases.
It takes place when there is a contraction of muscles and bones move the joint from a bent to a straight position, it is opposite of flexion, in which the angle between the bones and the limb at the joint decreases.
Example: During straightening of the leg, the angle between the tibia and femur increases, which shows extension has taken place.
Answer:
The correct answer will be option-C.
Explanation:
Gregor Mendel is known for his experiments performed on the pea plants on the basis of which he was able to predict the principles of inheritance. He used seven different characters to understand the inheritance pattern of the traits in generations.
He performed monohybrid (single) and dihybrid (two) crosses by growing the plants from the seeds and performing cross-fertilization and self-fertilization. He performed self- fertilization by emasculation and cross-fertilization by shedding the pollen of another plant over ovules of another plant.
Thus, Option-C is the correct answer.
