B. A dichotomous key uses question pairs to identify organisms by their characteristics.
Your answer is b Changes in the tempurature and salinity of water
Answer:
I think it's the immune and adaptive systems
Explanation:
Because BOTH link a d work together to defend against germs and harmful substances.
Answer:
Multicellular organisms are made of more than one cell and are complex organisms.
They are visible to the naked eye.
They possess distinct organs and organ systems.
They are eukaryotes, i.e., they contain membrane-bound structures.
Their cells exhibit division of labor.
Their size increases with the number of cells in an organism
Explanation:
If I am reading this right, I would say that that fiber would be a nerve.
