Answer:
The nervous system provides the link between thoughts and actions by relaying messages that travel so fast you don't even notice. Nerves and muscles, working together as the neuromuscular system, make your body move as you want it to.
Explanation:
Answer:
C. Multi-celled eukaryotic organisms began to diversify
Explanation:
The Proterozoic is an eon in which numerous important things occurred. There were multiple organisms that appeared in this eon. They were able to perform the process of photosynthesis which resulted in gradual pilling up of oxygen into the atmosphere, thus changing the composition of the atmosphere, and setting up the terrain for the future development of other organisms. It is an eon though in which there were only single-celled organisms, while the diversification of multi-celled eukaryotic organisms occurred in the next eon, the Phanerozoic.
Increases the amount of variation in the offspring. the variation could eventually become so great that the two become different species
<span>The average conditions of the atmosphere in a particular area are referred to as the area’s climate. The correct option among all the options that are given in the question is the fourth option or option "D". The other choices are incorrect. I hope that the answer has come to you desired help.</span>
Answer:
In the closed circulatory system, blood is confined to a heart and blood vessels, whereas in an open system, hemolymph (blood) moves from a heart through vessels into interconnected spaces called a "hemocoel."
Explanation:
An open circulation the blood is not blood vessels, it instead is pumped into a cavity called Hemocoel.
A closed circulatory system, the blood is pumped through vessels SEPARATE from the interstitial fluid of the body.
