Bees 🐝
Heart, blood and blood vessels are part of the ________ system
Circulatory
Type of consumers that eat only plants
Herbivores
What is necessary in order for life to develop and survive on a planet?
Water in liquid form
It is the main sign of atmospheric pollution
Smog
Air pollution is an example of
Negative human impact
This layer of soil is also called "topsoil"
O horizon
Two characteristics of this system are automatic and involuntary
Respiratory
It is when a solid becomes a gas
Sublimation
What does the hydrosphere consist?
It consists of all the water on Earth
Type of consumers that eat other animals
Carnivores
It is the total percentage of fresh water on Earth for human consumption
3%
It is the buildup of harmful material in our environment
Pollution
It comes from the use of fossil fuels
Acid rain
What function do blood vessels have?
They are tubes that transport blood to all parts of the body
We get rid of carbon dioxide when we…
Exhale
The combination of Red blood cells, white blood cells and platelets makes…
Blood tissue
The composition of soil is:
25% water, 25% air , 45% minerals and 5% organic matter
What happens though respiration?
Though this process our body takes oxygen from the air
Type of consumers that feed on other animals without killing them
Parasites
One of its consequences is damage of plant life
Acid rain
Type of consumers that eat both plants and other animals
Omnivores
70% of Earth’s surface is covered by…
Ocean
What is the heart?
It is a muscular organ that contracts to pump blood through the organism
Natural phenomena that can alter a food system
Volcanic eruptions, floods, droughts , glacial periods
Describe what blood is
It is a liquid tissue that carries substances such as nutrients, oxygen and waste.
The ozone layer is being destroyed by
CFCS
Average human heartbeat in a lifetime
2,500,000,000 times
What is an ecosystem?
It consists of all the living and non living things that live in the same place
What function does the ozone layer have?
This layer protects the planet from the Sun's ultraviolet rays
There are two models of the Earth, which are
Chemical and physical
What does the lithosphere consist?
It consists on Earth's crust and the mantle
The function of the circulatory system is…
To transport water, nutrients, and cell waste through the organism and keep every part of the body supplied with the necessary elements to function.
The biosphere includes…
all living things and the outer layers of Earth
A bruise is formed when…
Blood vessels break internally
Define abiotic factors
Non-living things in an ecosystem
System that converts food into nutrients
Digestive
What does CFCs stand for?
Chorofluorocarbons
Type of consumers that consume waste and carrion
Scavengers
These are some of the gases found in smog
Carbon dioxide, sulfur ,and nitrogen oxides
What is the atmosphere?
It is a layer of gas almost 10,000 km thick that covers the entire surface of Earth
Human causes of ecosystem alterations
Hunting, farming
The three states of water are:
Solid, liquid , gas
Which substances does acid rain form?
Sulfuric and nitric acids
Lungs and ___________ are part of the respiratory system
Pulmonary Airways
It is when a gas becomes a liquid
Deposition
CFCs have been used in…
Refrigeration devices and aerosol sprays
Bleeding happens when…
blood comes out externally.
Define biotic factors
Living things in an ecosystem
It is the lowest soil layer and consists of whole rocks
R horizon
What does the excessive accumulation of greenhouse gases cause to the atmosphere?
A worldwide increase in temperature heat