Answer:
to continually produce energy,your organs need oxygen and the oxygen is carried in your red blood cells.
Answer:
The immune system is made up of a network of cells, tissues, and organs that work together to protect the body.
Explanation:
<u>Answer:</u>
Theory is used to describe a fact that has always been observed true but could at some future time not be observed as true.
Option: (B)
<u>Explanation:</u>
- Hypothesis is a guess that is based upon the observation. Hypothesis is an idea that might occur in future but doesn’t fall in present theory.
- Generally hypothesis is not based upon facts and also they aren’t proved. Interpreting certain fact is theory.
- Theories are only the explanation of something but facts is observable.
- Theory is something like a concept or idea that is observed to be true at present may fail in near future.
- Law is absolute and true. Generally, they are represented by mathematical expression or equation.
- For example, Newton's law, Law of gravity, Law of thermodynamics.
Answer:
Relative to prokaryotic cells, eukaryotic cells are usually larger and more complex.
