the smallest unit of a living thing that can perform all life processes
gel-like liquid found in cells that contains things needed to carry out its life processes
the control center of the cell
the special parts in plant cells that trap the Sun's energy
a group of closely related living things
a group of similar organisms that can mate and produce offspring that can also produce offspring
animals with backbones
animals without a backbone
Why are cells called the building blocks of life?
All living things are made of cells.
made of groups of the same type of cells
made up of groups of tissues that work together
made up of groups of organs that work together
surrounds the outer area of the cell and controls what substances move in and out of the cell
found in plant cells outside the cell membrane that supports and protects the cell
the largest classification groups of living things
kingdoms of living things
ancient bacteria, true bacteria, protists, fungi, plants, animals
why is a classification system important to scientists?
it helps them to study and compare living things in an organized way.
Name the smaller groups of the animal kingdom.
What are some characteristics scientists use to classify organisms?
the organisms' features such as body parts and certain behaviors
Which kingdoms have living things that can make their own food?
ancient bacteria, true bacteria, protists,and plants
What are vascular plants?
plants that have tube like structures that move water and nutrients to the organs of the plant.
Name some vascular plants.
bamboo, grass, trees
non vascular plants
plants without a tube like system...they pass water and nutrients only from one cell to the cell next to it.
Name three nonvascular plants.
mosses, hornworts, liverworts
Name two ways to classify plants.
how they transport water and nutrients and how they reproduce
Name the two groups of plants by reproduction.
plants that produce seeds and plants that produce spores
Name two groups of seed plants.
flowering plants (ex. apple trees) and conifers (ex. evergreens)
plants that produce seed in cones
tiny cells that grow on ferns and mosses that can grow into a new plant
List the 5 groups of vertebrates.
fish, amphibians, reptiles, birds, and mammals
Name 5 groups of invertebrates.
arthropods, worms, sponges, sea stars, and mollusks
What are the largest group of invertebrates?
anthropods (ex. insects, spiders, crab, and shrimp)
Name the largest group of animals.
a physical feature or behavior that helps an animal get food, protect itself, move, or reproduce
What do animals need to survive?
food, water, oxygen, and shelter
Name some adaptations of animals.
birds have feathers to fly; polar bears have thick fur; crab eating seals have teeth that can sift krill.
Name some adaptations to avoid predators.
tricking enemies with colors and markings; blending in with surroundings;poisonous glands; and the ability to escape
explain the difference between instinct and learned behaviors.
instinct behaviors are inherited ( born with) and learned behaviors are a result of training or changes in experience.
traveling in search of food or a place to reproduce
a state of inactivity that occurs in some animals when outside temperatures are cold