1.
ISO
What is the process by which plants and animals release waste materials from their bodies called?
2.
ISO
Which of the following is the main function of the nervous system in the human body?
3.
ISO
Which of the following is the process by which a seed begins to grow into a new plant?
4.
ISO
What is the process by which an organism changes its physical or behavioral traits to survive in its environment called?
5.
ISO
What is the process by which a gas changes into a liquid called?
6.
ISO
What is the process by which a liquid changes into a solid called?
7.
ISO
Which of the following is the layer of the Earth's atmosphere closest to the surface?
8.
ISO
Which of the following is the hardest substance found in nature?
9.
ISO
Which of the following is the primary function of the circulatory system in the human body?
10.
ISO
What is the process by which light waves bounce off a surface called?