The total amount of resources available. Examples are food, shelter, water, nesting sites, etc.
What are limiting factors
100
Describe the relationship between a tapeworm and a dog.
What is parasitism.
100
How does the sun's energy arrive at earth?
as Radiation
100
Certain characteristics (color of fur, etc) may help an organism survive and reproduce. This characteristic is then inherited by offspring. Over time this makes the population change. What is the scientific name for this process.
What is Natural Selection
100
Sexual reproduction in animals allows traits to be passed ot offspring. In what part of the cell is genetic information stored?
What are chromosomes.
200
What would happen to the birds in an ecosystem if a chemical killed all of the insects?
The bird population would decrease due to lack of food.
200
When food becomes limited in an ecosystem, animals will become aggressive and defend the food they have. What is occurring in the population of animals?
Competition for resources.
200
The Electromagnetic Spectrum is organized by ________
Wavelength.
200
Darwin noticed that the finches on the Galapagos Islands had different beak structures. What is an explanation for the difference in the birds' beaks?
adaptation to different food sources
200
In Pea Plants the gene for tall stems (T) is dominant to the gene for short stems (t). What would the genotype for a plant with short stems be?
tt (Homozygous recessive)
300
Snakes are food for Hawks. Explain what would happen to the snake population if all of the hawks were killed by hunters.
The number of snakes would increase.
300
Explain how human beings can negatively affect populations of animals.
Decrease in population due to fewer habitats.
300
Scientists often use diagrams and pictures to explain difficult science concepts. What is a chart of the different types of radiation that arrive from the Sun called?
Electromagnetic Spectrum
300
A forest ecosystem contains many mammals like chipmunks live in the brown leaves on the forest floor. Why would a population of white mice not survive in this ecosystem?
White mice could not hide from predators
300
What would the phenotype of a pumpkin be?
What is orange color
400
What is the definition of Primary consumer?
The first consumer in a food web.
400
What is a secondary consumer?
the 2nd consumer in a food web
400
White light is made up of
A spectrum of many colors.
400
Bacteria are microscopic organisms that often cause disease. Antibiotics are given to people to cure bacteria-caused diseases. Scientists are noticing that over time Antibiotics are less effective. Why?
The genes of some kinds of bacteria make them resistant to antibiotics.
400
Each parent gives one piece of genetic code to their offspring for each characteristic. What is the name for this bit of code?
Allele
500
Cows have special bacteria in their stomachs to help them digest grass. The cow benefits because the bacteria aid in digestion. The bacteria benefit because they gain nutrients. What kind of a relationship is this?
What is Mutualism
500
Parasitism, commensalism, and mutualism are all examples of ________ relationships.
What are symbiotic relationships
500
What happens to a light wave when it is refracted?
the wave changes direction
500
Crickets living in caves eat fungi and only one type of insect. What would cause the cricket population becoming extinct over a long period of time?
Cricket produces FEW offspring and DOES NOT change its diet.
500
Scientists use Punnett Squares to show traits being passed from parent to offspring. What is a benefit to using a model like a Punnett Square?