Biology Introduction Quiz

True or False: All cells have DNA.

• True

• False

Answer explanation

True. All cells, whether prokaryotic or eukaryotic, contain DNA, which carries genetic information essential for growth, development, and reproduction.

Tags

NGSS.MS-LS1-1

Every organism must pass on its ________________, stored in DNA.

• metabolism

• response

• growth

• genetic code

Answer explanation

Every organism must pass on its genetic code, which is stored in DNA. This code contains the instructions for building and maintaining the organism, making 'genetic code' the correct choice.

Tags

NGSS.MS-LS3-1

NGSS.MS-LS3-2

The biggest animal on Earth

• elephant

• hammerhead shard

• blue whale

• giraffe

Answer explanation

The blue whale is the largest animal on Earth, reaching lengths of up to 100 feet and weights of around 200 tons. In comparison, elephants, hammerhead sharks, and giraffes are significantly smaller.

Breathing organ of Mammals

• gills

• lungs

• skin

• hair

Answer explanation

Mammals primarily use lungs for breathing, allowing them to take in oxygen and expel carbon dioxide. Gills are used by fish, while skin and hair do not serve as primary breathing organs.

Animals with fur or hair and feed their young with milk

• penguins

• mammals

• birds

• amphibians

Answer explanation

Mammals are the only animals that have fur or hair and produce milk to feed their young. Penguins are birds, and amphibians do not have fur or hair, making 'mammals' the correct choice.

Tags

NGSS.MS-LS4-2

Animals with backbones

• Invertebrates

• Insectivores

• Vertebrates

• Plants

Answer explanation

Animals with backbones are classified as vertebrates. Invertebrates lack a backbone, while insectivores refer to a diet type, and plants are not animals. Therefore, the correct answer is vertebrates.

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Which of these is the basic unit of life in all living things?

• tissue

• organ

• cell

• atom

Answer explanation

The cell is the fundamental unit of life, making up all living organisms. Tissues and organs are made of cells, while atoms are the building blocks of matter, not specifically related to life. Therefore, the correct answer is 'cell'.

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

What is the correct ordering of life from smallest to largest?

• organism, organ, organ system, tissue

• organism, organ system, organ, tissue, cell

• cell, tissue, organ, organ system, organism

• All choices are correct

Answer explanation

The correct order from smallest to largest is cell, tissue, organ, organ system, and organism. This hierarchy reflects the organization of biological structures, starting from the basic unit of life, the cell.

Tags

NGSS.MS-LS1-3

Which of the following is NOT an organism?

• Kangaroo

• Mushroom

• Computer

• Oak tree

Answer explanation

A kangaroo, mushroom, and oak tree are all living organisms, while a computer is a man-made device and does not possess life. Therefore, the correct answer is 'Computer'.

What are the different types of land biomes?

• Desert, Forest, Grassland, and Tundra

• deciduous, arctic, marine, wetlands

Answer explanation

The correct answer lists the main types of land biomes: Desert, Forest, Grassland, and Tundra. These biomes are characterized by distinct climates and ecosystems, unlike the incorrect options which include aquatic and non-biome categories.

Tags

NGSS.MS-LS2-2