Answer:
Trace fossils include footprints, trails, burrows, feeding marks, and resting marks.
Explanation:
By studying a particular species .
The secondary consumers will be able to survive, as well as decomposers, as they kill the primary consumers, which depends on the plants, and teaches them to their offspring
Answer: Option B
Pigs wallow in the mud to cool themselves down.
Explanation: Pigs' skin contains lots of fats, and fats serves as thermal insulator during cold (low temperatures); unfortunately, this feature turns becomes a disadvantage during heat (high temperatures). Hence, pigs frequently wallows in the mud (or any nearby cool water place) - to reduce their body temperature.