An atom's atomic mass can be calculated by adding the number of protons and electrons.

True

False

What is the difference between a toad and frog?

Which of the following is NOT a part of a prokaryotic cell? A - Ribosome B - Nucleoid C - Chromatin D - None of the above

Which statement best describes how a catalyst can speed up a chemical reaction?

Small islands can form during the constructive process called A) erosion. B) glaciation. C) deposition. D) weathering.

What feature of the fossil Pikaia led scientists to classify it as a chordate? A. Tentacles B. A definite head region C. A notochord D. Segmentation

Statistics about the climate in a tundra ecosystem were collected for 30 years. which hypothesis about a population of caribou could be made based on the climate data collected? a. caribou calf survival is directly related to annual rainfall amounts.

Since plant cells do not have centrioles, how do they make spindle fibers during mitosis?

Plants use sunlight to produce some ATP during photosynthesis. How do plants produce ATP when the Sun is not out? a. Plants are secondary consumers. b. Plants also use cellular respiration. c. Plants extract ATP from the stars. d.

Describe 4 ways that we know the global climate is changing

What does each individual node in a cladogram represent