Life Cycle
What is the series of changes in the life of an organism including reproduction?
Life Cycle
An animal of a large group distinguished by the possession of a backbone or spinal column.
(e.g) mammals, birds, reptiles, amphibians, and fishes
Give examples of a food chain
butterfly-small birds-fox
corn-chick-snake-man
fruits-bats-eagles
dead plants-centipede-robin
What is an ecosystem?
A biological community of interacting organisms and their physical environment.
What is Recycling?
The process of collecting, separating, reusing and remanufacturing used materials and products.
Name at least 3 stages in Product Life Cycle
Product Development
Product Research
Development StageIntroduction
Growth
Maturity
Why is a tiger consider as a vertebrate?
warm-blooded and mammals
A system of interlocking and interdependent food chains.
Food Web
What are the three major classes of ecosystems?
Freshwater Ecosystems
Terrestrial Ecosystems
Ocean Ecosystems
Name at least 3 importance of recycling
reduces the consumption of fresh raw materials
reduces pollution
reduces energy usage
reduces lower greenhouse has emissions
How long is the life cycle of a butterfly?
one month to a whole year
An animal lacking a backbone
invertebrate
A hawk eats a snake, which has eaten a frog, which has eaten a grasshopper, which has eaten grass.
Food Chain
Name at least 3 of the components of most ecosystem include
water
air
sunlight
soil
plants
microorganisms
insects
animals
Mostly composed of non-biodegradable waste which takes a long time to decompose.
Reduces waste products in landfills
What do humans and animals have in common?
They all go through a life cycle
Name one of the invertebrates without legs
earthworm
leech
fluke worm
tapeworm
Why do scientists usually use a food web instead of a food chain?
Producers, or autotrophs, make their own organic molecules. Consumers, or heterotrophs, get organic molecules by eating other organisms. A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another.
What does a desert ecosystem contain?
Deserts are areas of land that are arid, or dry, and get less than 10 inches of rain per year. Deserts can be hot or cold. Plants and animals in the desert ecosystem have adaptations that allow them to survive the lack of rainfall and extreme temperatures.
Trees are cut down to make paper
(e.g) one day there will be no more trees left if we continue to cut down all the trees
Name at least 5 stages of a human life cycle
pregnancy
infancy
toddler
childhood
puberty
older adolescents
adulthood
middle age
senior years
What do vertebrates and invertebrates have in common?
Both vertebrates and invertebrates are:
animals
live on earth
composed of cells
consumers
life cycle
Why are humans the top predators?
Predators that exert top-down control on organisms in their community are often considered keystone species. The presence of any top predator (bear, big cat, wolf, dog, or especially human) can greatly alter the behavior of such smaller predators a badger.
Why the ecosystem is important?
Ecosystems are communities of organisms and non-living matter that interact together. Each part of the ecosystem is important because ecosystems are interdependent. Damaged or imbalanced ecosystems can cause many problems.
What is the three R's? Explain why it is important to maintain these three R's.
reduce
reuse
recycle
All help to cut down on the amount of waste we throw away. They conserve natural resources, landfill space, and energy. Plus, the three R's save land and money communities must use to dispose of waste in landfills.