The basic unit of life
a collection of tissues and similar structures that all function as one
What is an organ?
any living thing that is composed of various organ systems that function altogether
What is an organism?
This is formed when organisms or individuals reside a common environment at a given time
What is a population?
a very huge geographic area where various ecosystems exist, and different organisms adapt to it.
A group of interconnected cells that has the same function
What is a tissue?
an association of different organs and other anatomical structures that perform a certain physiological process
What is an organ system?
This is formed when such individuals reside a common environment at a given time
What is a population?
the interaction of different organisms, populations,and communities to their abiotic or non-living environment.
What is a ecosystem?
a global system that generally comprises everything where life exist and the abiotic environments they reside in, all blending with each other.
What is the biosphere?

This liquid is a tissue that brings oxygen and nutrients through the body.
What is blood?
This organ pumps the blood throughout the body by contracting and relaxing its tissues.
What is a heart?
This living thing is the most domesticated animal in the world, as it is the most common form of livestock

What is a chicken?
the weather, sunlight, water, and the availability of nutrients
What are abiotic components?
This is basically the sum of all the ecosystems on planet Earth; another term for the biosphere
What is ecosphere?
What is an organelle?
This includes the heart, blood vessels, and the blood that to carry oxygen, nutrients and other materials around the body
What is the circulatory system?
The movement of organisms from one place to another often in a seasonal basis that causes the population to increase or decrease at a certain area
What is migration?
Happens when a predator like a cat eats a prey like a mouse
What is predation?
A kind of biome that is characterised by rolling grassland scattered with shrubs and isolated trees, which can be found between a tropical rainforest and desert biome.
What is a savanna?
This level comes after organ systems and represents a complete living thing, whether it's a bacterium, a tree, or a human.
What is an organism?
This system provides structural support, protects organs, and stores minerals like calcium.
What is skeletal system?
Flow of energy in an ecosystem always begins with these organisms that convert sunlight into chemical energy.
What are producers? What are autotrophs?
In this type of interaction, both organisms benefit—like bees and flowering plants.
What is mutualism?
This biome is dominated by permafrost and includes animals like caribou and Arctic foxes.
What is tundra?