They all have different compositions of protons, neutrons, and electrons. This causes variety and makes atoms different so they can make up different substances
Cardiac output, peripheral resistance, hormonal changes coming from glands, blood volume & blood viscosity
The answer is:
Echinodermata
The word echinodermata is Greek which literally means "Spiny Skin". Echinodermata is a phylum under kingdom animalia. Not all of them have spiny skins, but most of them do. Other characteristics would be their radially symmetric body. They have appendages that grow outward from the center. Examples of echinoderms would be sea stars and sea urchins.
Answer:plate tectonics
Explanation: Because plate tectonics moved around the continents and they were moved to different locations which caused the climate change
