Answer:
1. hydrogen; 2
2. it means two strands of DNA twisted around each other like a winding staircase
The inner ear structures containing granules and helps with gravitational equilibrium are: the semicircular canals called utricle and saccule.
Ear is the organ involved in the hearing of sounds and also maintains the balance of the body. The ear is distinguished into three parts: the outer ear, the middle ear and the inner ear. The outer ear is called pinna. The middle ear consists of three most important bones called the malleus, incus and stapes.
Semicircular canals are the parts involved in balancing. These are the tiny tube like structures that contains a fluid. Apart from balancing, the semicircular canals are also able to detect the head position.
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Answer:
C
Explanation:
when there is limited food, then natural selection will occur
If i saw a peron in a house that's on fire, i'd probably panic and then run to help them. one way that i'd have to use my nervous system would have to be to be able to respond to the fire around me, my nervous system would let me know if i were getting burned while running through the house
