The muscles of a fossilized animal can sometimes be reconstructed because______.
A: they were preserved with the rest of the animal
B: they were lodged inside the animal's skull
C: they were hardened parts of the animal's body
D: they were attached to the animal's skeleton
A: they were preserved with the rest of the animal
B: they were lodged inside the animal's skull
C: they were hardened parts of the animal's body
D: they were attached to the animal's skeleton
举一反三
- In history, the southern peoples were mostly engaged in animal husbandry.
- If you were a physician, would you support animal research? Why?
- 【单选题】When we were young girls, we used to have a lot of _____ A. toy animal B. toys animal C. toy animals D. toys animals
- Functions of anatomical structures like the heart and lungs were investigated with animal vivisection. </p></p>
- If you were an animal rights activist, how would you stop the physicians doing anamal research?