How do animals take in nutrients?
by feeding on other living things
What is the function of root hair cells?
they absorb water and minerals from the soil
How do decomposers take in nutrients?
by feeding on the remains of dead plants and animals
What is a cell?
The structural units of life
Put them in order from smallest to biggest:
Cell, organ, tissue, system, organism
Organism, system, organ, tissue, cell
Cell, organ, organism, tissue, system
Cell, tissue, organ, system, organism
What is cytoplasm?
It is a jelly like substance that fills the cell where chemical reactions happen
What 4 features do plant and animal cells share?
nucleus, cell membrane, cytoplasm and vacuoles
How do plants take in nutrients?
by producing their own food through photosynthesis
What is the smallest living unit in a living thing?
a cell
What is the function of the cell membrane?
It controls the substances that enter and leave the cell
What is the function of white blood cells?
Protect the body from bacteria, viruses and other foreign invaders. They are like bodyguards.
What two types of reproduction are there and how are they defined?
Asexual reproduction is when only one organism is required. Sexual reproduction involves two individuals of the same species.
What is the function of nerve cells?
They carry information from the brain to the rest of our body. The brain also receives information from the sensory organs from these cells.
What are the three life processes that all living things perform?
Nutrition, reproduction and interaction
What is an example of a multicellular organism?
Give an example of an organ.
All systems work together to ensure that we function properly as an ___________
Organism
What is the stomach?
Tissue
Cell
Organ
Organism
What is interaction?
When living things react to stimuli (changes in the environment)
What is the function of chloroplasts?
they contain chlorophyll which is needed for photosynthesis
What is the function of red blood cells? Why are they red?
They carry oxygen around the body. They are red because they contain hemoglobin, a bright red protein that contains iron.
Most cells work together with other similar cells to make layers, called ________.
Tissues
Organs work together to make _________.
Systems
What are the five kingdoms that living things can be classified into?
Monera, protist, fungus, plant, animal
What is the function of the nucleus?
It controls the functions of the cell, such as reproduction
What do vacuoles contain?
Water and minerals which the organism needs in order to grow
Give two examples of organisms that belong to the protist kingdom
Algae, amoeba
Is bacteria multicellular or unicellular?
Unicellular
What 2 features do plants cells have that animal cells don't?
cell walls, chloroplasts
What is an organism with many cells?
Multicellular organism
What is the function of cell walls?
they protect the cell
Give an example of a multicellular living thing that makes its own food and lives on land.
Plant
What is the function of leaf cells?
They absorb sunglight so photosynthesis can take place
What are organs made out of?
Layers of tissue