Individual traits are only influenced by a single allele.

a. True

b. False

Explain why the temperature of water stays the same for a while once it starts boiling?

What factor contributes most to the warm climate of Kuala Lumpur?

Which statement describes secondary succession? A. Only bare rock is present at the start. B. Some soil is present at the start. C. The climax community is always a grassland. D. The climax community is always a pine forest.

Explain why the amount of rainfall in region receives is a better determination of whether it is a desert than the temperature

Natural selection is the process by which organisms inherit advantageous traits, and tend to reproduce more successfully than other organisms. a. True b. False

What is the function of heart valves? They return blood to the heart. They force blood to flow out of the heart. They regulate the heart rhythm. They prevent blood from flowing backwards.

Scientists use different types of models to analyze the structure of ecosystems. Which characteristic is seen in a biomass pyramid

What field is used to classify organisms

Which best describes how the fossil record supports the theory of evolution? a. The fossil record shows exactly how all species have evolved. b. The fossil record refutes Darwin's theories. c. The fossil record cannot accurately be aged. d.

Which type of diagram illustrates the flow of energy through a group of particular species? A. food web B. food chain C. energy plate D. energy pyramid