Practice Quiz Characteristics and Needs of Living Things

Directions Click anywhere on the screen or hit the down arrow to move to the next slide. Write each answer on a piece of paper to test yourself. Count the number correct. Study the ideas and words that you get wrong. Good Luck!

Question 1: How many characteristics of life have we discussed in class?

Answer: 7

Question 2: What is the word that helps us remember the characteristics of life?

Answer: CARRUGS

Question 3: What does the “C” stand for?

Answer: All living organisms are made of cells.

Question 4: What does the “A” stand for?

Answer: All living organisms are adapted to their environment.

Question 5: What does the “R” stand for?

Answer: All living organisms have the ability to reproduce.

Question 6: What does the next “R” stand for?

Answer: All living organisms respond to stimuli.

Question 7: What does the “U” stand for?

Answer: All living organisms obtain and use energy.

Question 8: What does the “G” stand for?

Answer: All living organisms grow and develop.

Question 9: What does the “S” stand for?

Answer: All living organisms maintain a stable internal environment.

Question 10: Identify the stimulus and response: A wasp smells the sweet odor of a plant and flies toward the plant.

Answer: Stimulus = scent (odor) of plant Response = wasp flying toward plant

Question 11: Identify the stimulus and response: A plant’s leaves grow toward sunlight.

Answer: Stimulus = sunlight Response = growth toward sunlight

Question 12: What is an autotroph?

Answer: An autotroph is an organism that can produce its own nutrients.

Question 13: What is a heterotroph?

Answer: A heterotroph is an organism that must obtain its nutrients because it cannot produce its own nutrients.

Question 14: Is a plant considered to be an autotroph or a heterotroph? Why?

Answer: A plant is an autotroph because it makes its own nutrients through photosynthesis.

Question 15: Based upon our yeast lab, are yeast considered to be autotrophs or heterotrophs? Why?

Answer: Yeast are heterotrophs because they cannot produce their own nutrients. The yeast became active when we gave them nutrients (sugars).

Question 16: What is the difference between a multicellular organism and a unicellular organism?

Answer: A unicellular organism is made of one cell, while a multicellular organism is made of more than one cell.

Question 17: Are you unicellular or multicellular? Why?

Answer: Humans are multicellular because we are made of billions of cells.

Question 18: Why do organisms need to take in nutrients?

Answer: Organisms use nutrients to create energy.

Question 19: List one behavior and one physical adaptation that enables a squirrel to survive.

Answer: Physical adaptation examples: Claws, fur, large eyes, tail Behavior adaptation examples: Climbing, building nests, running away from danger

Question 20: What is the first question that we could ask to figure out if something is a living organism?

Answer: Is it made of cells?

How many did you get correct? Awesome! You’re ready - continue your review Pretty good. You’re ready, but should review a bit more Hmm. You need to study more. < 13 - You really need to study your definitions and practice problems.