What is the excretory system that removes water, salt, and body heat

Bones, joints, ligaments, and cartilage are parts of the a) refrigerator b) muscles c) skeleton

What does homeostasis regulate

Identify the molecule that is a carbohydrate. A. lipid B. sucrose C. propylene D. methane

If a mutation in the dna of an organism results in the replacement of an amino acid containing a polar r-group with another amino acid containing a nonpoler group, how might the structure of the protien be affected

When the body receives stimuli, which structure typically processes the stimuli? sensory nerve cell motor nerve cell brain meninges

Gregor Mendel developed several laws of heredity over the course of his genetic research. What does the first law of heredity, the law of segregation, state about genes?

What can you learn from a set of embryo drawings of vertebrates of different phyla? A) the genotype of the species of different phyla B) the phenotype of the species of different phyla C) the ecological relationships between species of different

Which of the following is true of plant cells but not of bacterial cells? A. Have cell walls b. do not undergo mitosis c move by means of flagella d. have chromosomes located in a nucleus

Which is correctly expressed? A. toco cartas B. juego el violín C. juego fútbol D. toco béisbol

How are solar cells different from most other power sources?