What is a biosphere?
It is the layer of earth that is made up of living things.
What does the earth's crust provide for plants?
It provides nutrients for plants.
Why is the sun so important?
It is the source of energy for all living things.
What are the features that are common to all living things?
All living things reproduce, grow and change, need food and water, and need energy from food.
Why is it important to know the size of population?
You want to know if the population is getting too big or too small.
How are animal populations counted?
They are counted by getting marked. Bands are put on their legs, their ears are marked and radios are put on their bodies(deer or bears)
How are plant populations counted?
First the targeted area is marked off and divided into equal boxes. Then the plantsin one area are counted and that number is multiplied by the total number of boxes.
What happens if a population is growing too large?
Some may starve or die from disease. There would not be enough space.
What are the 3 stages in a life cycle?
birth, growth & development, death
What is the life cycle of a butterfly?
ELPA- egg, larva, pupa, adult
How does a bee help in pollination?
They move pollen from the anther to the stigma.
What are the four ways that animals reproduce?
splits in half, form buds, lays eggs, live births
How do plants reproduce?
buds(potatoes), runners(strawberries), seeds(fruit trees and flowering plants) spores(ferns and mosses)
Why do animals migrate?
to reach warmer weather, to find new sources of food, to raise their young under better conditions
What is the difference between migration and succession?
Animal migration is in a yearly cycle whereas plant succession in an area changes very slowly over a longer period of time.
What things cause a population to change in size?
deaths, births, movement to a new place
layer of the earth that is made up of living things
organisms that are neither plants nor animals
very small protists made up of one or more single cellls
a protist, such as a mushroom or mold that has no leaves or stems
a scientist who studies the world of living things
a number of the same kind of organism that live in the same place
series of stages in life of an organism
how long an organism lives fromits birth to death
the part of a flower that contains pollen
the part of the flower that receives pollen
a yellow powder made by the anthers of a flower
to begin to grow
small round objects found on ferns which can grow and form new fern
migrate or migration
the movement of animals from place to place
the movement of plant populations into an area
happens when a population grows very quickly
the colorful part of the flower that attracts pollinators
the male part of the flower made up of filament and the anther
holds up the anther
the long tube that goes to the ovary, holds up the stigma
the female part of the flower made up of the stigma, style, ovary and ovules
stored in the ovary and will become seeds
the base of the female part of the flower which contains ovules
little green leaves that cover the outside of a flower bud to protect the flower before it opens