Trevor wanted to determine which fertilizer worked best for growing plants. He planted sunflower seeds, marigold seeds, and Petunias seeds in separate pots. In one pot he used Miracle Grow, Scotts Fertilizer in another, and no fertilizer in the third pot. He watered the plants the same amount of water each day. After a month, he measured and recorded the plant's height. What did Trevor do wrong in this experiment?

• The pot sizes were too big.

• He did not give the plants enough time to grow before measuring the heights.

• He should have used a different amount of water for each plant.

• He has more than one independent variable.

Tags

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

NGSS.MS-LS2-1

If fish are caught faster than they can breed, the population will __________________.

• Decrease

• Increase and then decrease

• Increase

• Stay the same

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

If all members of a species disappear from Earth, that species is ____________________.

• Threatened

• Nonrenewable

• Extinct

• Endangered

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NGSS.MS-LS4-1

What did Darwin observe about the Finches in the Galapagos Islands?

• Their feathers helped them camouflage into their environment.

• They all looked identical

• Their beaks were adapted to match the food they ate

• Their DNA was identical

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NGSS.MS-LS4-2

Bacteria are prokaryotic because ________________________.

• They have membrane-bound organelles, including a true nucleus to contain DNA.

• They have no membrane-bound nucleus to contain their DNA.

• They are multicellular.

• Their cells do not contain DNA.

Which of the following characteristics do NOT apply to both prokaryotic and eukaryotic cells.

• Can have a cell wall

• Can be unicellular

• Have ribosomes

• Have a nucleus

Plants, animals, protists, and fungi are all _______________________.

• Prokaryotic

• Eukaryotic

Tags

NGSS.MS-LS4-2

The invention of the microscope made it possible for people to discover and learn about ______________________.

• Cells

• Plants

• Skin

• Animals

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NGSS.MS-LS1-1

Which of the following statements is NOT part of the cell theory?

• Living cells come from other living cells

• All living things are composed of cells

• Cells are the smallest unit of structure and function in living things.

• Only plants and animals are made of cells.

Tags

NGSS.MS-LS1-1

How does a bacterial cell differ from a plant or animal cell?

• It does not have a nucleus

• It is larger

• It has no cytoplasm

• It has no ribosomes