The answer is C) covalent bond
To be completely honest, I think all of them, in a way, support the theory.
The common animals show that the animals were spread out over all the land, making it joined
The coastlines matching show they were once joined
the earthquakes only happen in boundaries, where the countries were joined before
I'm not so sure about the last one, sorry
The contractile units of skeletal muscles are myofibrils. Thus,option A is correct.
<h3>What is skeletal muscles?</h3>
Skeletal muscles are 32 to 40% of total body mass. The type of muscles that connect to bones and allow to perform a wide range of movements and functions.
Skeletal muscles are easily controlled and work according to the desire .
Skeletal muscles are specialized tissue that is connected to bones and allows movement.
Therefore, the contractile units of skeletal muscles are myofibrils. Thus option 1st is correct.
Learn more about myofibrils here:
brainly.com/question/1194286
#SPJ1
Answer:
A. It is warming faster than previous natural cycles.
