Answer:
Cnidarians represent a more complex level of organization than Porifera. They possess outer and inner tissue layers that sandwich a noncellular mesoglea. Cnidarians possess a well-formed digestive system and carry out extracellular digestion.
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B,Because Hibernation is a seasonal heterothermy characterized by low body-temperature, slow breathing and heart-rate, and low metabolic rate. It most commonly occurs during winter months.
A because water is collected in clouds from bodies of water than falls back down as rain snow or hail
Salt on the pretzel causes thirst idk tbh
Answer:
The change is greatest for the solid ball
