Answer:
b. muscle
Explanation:
The Sponges usually known as Porifera (pore bearers) are aquatic filter feeders. The sponges consist of structural materials (spongin, spicules) which are usually made of calcium carbonate and/or silica. These structures forms their skeletal materials giving their body a thin sheet of cells over a frame (skeleton). As invetebrate and at the unicellular level of organization, Sponges lack muscle.
Answer:
plant produces oxygen that is option a
Answer:
The overies release progesterone and estrogen
Theres three major estrogens estradiol, estrone, and estriol, those work together to help develop female characteristics during puberty to ensure fertily.
Answer:ITS B GRAVITY PULLS AN INWARD FORCE!
