Reptiles
lay eggs, have scaly skin, are cold blooded, doesn't need to feed their hatchlings
Mammals
Gives birth to life offspring, have hair on their bodies, are warm blooded, needs to provide food for young
Answer:
1) A few things that sound waves can go through pushing the particles of the medium, closer together, the particles that have been upset at that point push adjoining particles, prior to bobbing once again into their unique positions. An example can be a guitar string producing sounds.
2) Light waves can travel however space through a vacuum a totally airless space.
Explanation:
I believe the answer is B.
The correct answer is sarcomere.
A sarcomere refers to the fundamental unit of striated muscle tissue. It is the reiterating unit between the two Z lines. The skeletal muscles comprise tubular muscle cells known as muscle fibers or myocytes that are produced in the procedure called myogenesis.
When the muscle fibers of a motor unit attain an impulse, it instigates a response in each sarcomere between the myosin and actin filaments. This response leads to a start of a contraction and the sliding filament theory.
