Type your response in the box. Based on the characteristics described, which category do you think humans belong to? Why do
you think they fit in this category?
porifera
cnidaria
nematoda
annelida
echinodermata
platyhelminthes
mollusca
arthropoda
chordata
Jollyrish natworms
round worms mollusk ragmented insects Starfish
worms spiders
backbo
segmentation
endoskeleton
coelom
body cavity
bilateral symmetry

b. the carbon cycle ensures living things have a source of hydrogen

rising temperatures because when water vapor in the air is cooled, it condenses. it turns back into a liquid and attaches to dust particles in the air. these very small water droplets group together to form clouds

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.