Answer:
They are bilaterally symmetrical and have a soft body sometimes covered with a shell.
Explanation:
Mollusks are bilaterally symmetrical organisms which means only two planes can divide their bodies into two identical halves. They are triploblastic organisms with organ system level of body organization. Mollusks have a soft body that is usually covered by a dorsal shell composed mainly of calcium carbonate. The foot is a broad, flat and muscular structure located ventrally. Foot serves these organisms in locomotion. The various body organs are present as visceral mass located above the foot. The visceral mass is covered by a thin sheet of tissue called mantle. Example: clams, snails, and squids.
Answer:
i would say a or b
Explanation:
sowwy i took a class on this but it was a while ago
Answer:
B modern society
Explanation:
If we still lived in the Dark Ages, we'd all be so busy farming and fighting for survival that there would be no space for leisure goods like contact lenses or developing technology like cell phones. Our modern society enables us to have job specialization: not everyone has to farm. Some people can take time to invent contact lenses. Some people can make those contact lenses.
Why not A: scientific discoveries didn't really impact rock concerts, unless you count the speaker systems. That's too loose.
Why not C: factories produce those items, but they don't directly influence their generation.
Why not D: political change has nothing to do with these items.
Answer:
Sperm and egg have 23 the number of chromosomes as a body cell.
Hope this helps =)
Water moves from an area of higher concentration to a lower one