Organization of Living Things
The smallest unit of life
Cell
How many bones are in the human body?
206
Muscles work with this system to help you move.
Skeletal
This system circulates blood through the body.
Circulatory System
This group of organisms creates its own food using sunlight and a process called photosynthesis.
Producers
A group of similar cells working together is called this.
Tissue
This part of the bone produces blood cells
Bone marrow
This happens when muscles shorten to create movement.
Contractions
This system breaks down food and absorbs nutrients.
Digestive System
Living factors in an ecosystem are called this.
Non living factors in an ecosystem are called this.
Biotic
Abiotic
This level includes heart, lungs, and kidneys working together.
Organ System
Who has more bones: a baby or an adult human? Why?
A baby.
The bones of the skull are not fully fused yet. This makes it easier for the mother to give birth to the child.
This type of muscle is found in your heart.
Cardiac
This system takes in oxygen and releases carbon dioxide.
Respiratory System
Name all three correctly:
Consumes only plants
Consumes only meat
Consumes both plants and meat
Herbivore
Carnivore
Omnivore
This level includes all ecosystems on Earth.
Biosphere
These connect bones to other bones.
Ligaments
These muscles work without you thinking about it.
Involuntary
The skin is the main organ of this system
Integumentary System
Only about this percent of energy passes to the next trophic level.
10%
This term describes a group of organisms that can breed and produce fertile offspring.
Species
This condition causes bones to become weak and brittle.
Osteoporosis
This type of muscle is found in organs like the stomach and intestines and works without you thinking about it.
Smooth Muscle
Name 10 different bones of the skeletal system
Skull, Humerus, Radius, Ulna, Tibia, Fibula, femur, pelvis, ribs, spine, clavicle, sternum, phalanges, vertebrae, etc.
This type of consumer only eats dead organisms.
Detritivore