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After the digestive system converts food into nutrients,these nutrients pass into the:
Bloodstream
When blood comes out externally it is called…
Bleeding
Non-living things in an ecosystem are called
Abiotic factors
Type of consumers that eat only plants
Herbivore
Type of consumers that eat both plants and other animals
Omnivores
Type of consumers that feed on other animals without killing them
Parasites
Type of consumers that consume waste and carrion
Scavengers
What is the job of red blood cells?
To carry oxygen
When we exhale, we get rid of:
Carbon dioxide
It includes all living things and the outer layers ofEarth
The biosphere
What are the main parts of the circulatory system?
Heart, blood, and blood vessels.
What are white blood cells?
Cells that fight infections
Two characteristics of the respiratory system
Automatic and involuntary
What are the three parts of the circulatory system?
Heart, blood, and blood vessels.
The components of the circulatory system are:
Heart, blood and blood vessels
The respiratory system consists of the:
Pulmonary airways and lungs
Average human heartbeat in a lifetime
2,500,000,000 times
What is necessary in order for life to develop and survive on a planet?
Water in liquid form
An example of negative human impact in thebiosphere is:
This layer protects the planet from the Sun's ultraviolet rays
The ozone layer
What is an herbivore?
An animal that eats only plants
What is a carnivore?
An animal that eats only meat.
What is the lithosphere?
Consists on Earth's crust and the mantle
What causes earthquakes?
Movement of tectonic plates.
These are the three states of water
Solid, liquid, gas
There are two models of the Earth, which are
Chemical and physical
Where does acid rain come from?
From the use of fossil fuels
Which substances does acid rain form?
Sulfuric and nitric acids
What is a consequence of acid rain ?
Damage of plant life
What is a biotic factor?
Living things in an ecosystem
Define pollution
It is the buildup of harmful material in our environment
This three cells make blood tissue
Red blood cells, white blood cellsand platelets
What is the main function of the respiratory system?
To take in oxygen and release carbon dioxide.
What is the main function of the digestive system?
To break down food and absorb nutrients.
Natural phenomena that can alter a food system
Volcanic eruptions, floods,droughts , glacial periods
What are the parts of the digestive system?
Mouth, esophagus, stomach,intestines, and more.
The composition of soil is:
25% water, 25% air , 45% mineral sand 5% organic matter
What is a renewable resource?
A resource that can be replenished,like sunlight or wind.
What is a non-renewable resource?
A resource that cannot be easily replaced, like coal or oil.
What is the difference between a vertebrate and an invertebrate?
Vertebrates have a backbone; invertebrates do not.
What is the water cycle?
The process by which water moves through evaporation, condensation,precipitation, and collection.
What it the hydrosphere?
It is a layer of gas almost 10,000 km thick that covers the entire surface of Earth
What is the heart?
It is a muscular organ that contracts to pump blood through the organism
What is the atmosphere?
It is a layer of gas almost 10,000 km thick that covers the entire surface of Earth
What is an Ecosystem?
It consists of all the living and nonliving things that live in the same place
What do producers do in an ecosystem?
Make their own food through photosynthesis.
What does the excessive accumulation of greenhouse gases cause to the atmosphere?
A worldwide increase in temperature heat
These are some of the gases found in smog
Carbon dioxide, sulfur ,and nitrogen oxides
What are consumers in an ecosystem?
Organisms that eat other living things.
What is the difference between weather and climate?
Weather is short-termatmospheric conditions; climate is the average over a long time