11. which of the following animals is not a scavenger that gets food from dead plants and animals washed up on the beach?
a) sand hoppers b) plow snails c) sea turtles d) ghost crabs
12. sea turtles are: a) reptiles b) marsupials c) mammals d) amphibians e) skates

11.C

12.A

Explanation:

11.

Scavenger:

 Those animals consumes dead organism is called scavenger.

Among all the given option expect sea turtles all are scavenger.

Sand hoppers eats decaying plant bodies ,plow snails eats the decaying animals and ghost crabs also eat decaying animals and dead matters.

12.

Sea turtles is a reptiles.This also called marine turtles.

true. earthquakes are felt whenever there is a slip around a fault in the rocks below the earth. this reorientation of faults create sesmic waves and is known as earthquake, the severity of which is measured in richter scale. these are more prominent in hilly regions as the rocks usually form faults to balance the pressures on it.

question

which are human systems?

the amazon rain forest

the appalachian trail

the george washington bridge

the himalayas

the hoover dam

the north american free trade agreement