How many sphincters does the digestive system have?

Which nucleic acid is translated to make a protein? hints which nucleic acid is translated to make a protein? dna rrna mrna trna?

Which descriptions apply to prokaryotic cells? Check all that apply. are usually single-celled contain a nucleus do not contain membrane-bound organelles have DNA located in cytoplasm

Piper touches a block of ice, and she feels that it is very cold. How does she feel the sensation of cold?

Why is it possible for an observer on earth to see the phases of the moon? A. The moon revolves around the sun, B. The earth revolves around the sun, C. The earth rotates on its axis, or D. The moon revolves around the earth

What happens as the activation energy increases? A. The pressure of the system decreases. B. The kinetic energy of colliding molecules changes. C. The reactant surface area decreases. D. The reaction begins to slow down.

Which pair of terms best describes a wooden table? biotic and nonliving biotic and living abiotic and nonliving abiotic and living

Select the correct answer. Which term refers to a fact that naturally occurs in the universe? A. scientific law B. scientific inquiry C. conclusion D. hypothesis

The process of moving water from its source to some place where humans use it, such as homes and farm fields, is called

When Charles Darwin published the Origin of Species, he provided evidence for which of the following concepts related to evolution? (choose all that apply) a. descent with modification as a process for speciation b.

Which animal group has mostly live births?