Q: What two systems are the lungs part of? Choices: - stomach and excretory - heart and excretory - stomach and nervous - respiratory and excretory A:
respiratory and excretory

(Question)
Q: In mammals, four specialized types of what serve to cut, tear, and grind food? Choices: - scales - plates - spines - teeth A:
(Answer)
teeth

Ques: Q: What term is used to describe major changes in the genetic material? Choices: - generational alterations - eukaryotic alterations - mutational alterations - chromosomal alterations A:
Ans: chromosomal alterations

(Q).
Q: What is paleobotany? Choices: - study of diseased plants - study of new plants - study of fresh plants - study of extinct plants A:
(A).
study of extinct plants

Ques:Q: Organism's changing over time is called? Choices: - generation - heterogenicity - variation - evolution A:

Ans:evolution

Ques: Q: The bones of the skull are connected by what type of joints? Choices: - semi-mobile - pivoting - adjustable - immovable A:
Ans:
immovable