Ecology
What is the difference between abiotic and biotic factors?
abiotic is nonliving and biotic is living
What is an adaptation?
a feature that increases survival and reproduction
What does heterozygous mean?
Two different alleles, one dominant and one recessive
What charge do protons have?
positive
What is the order of Earth's layers from outside in?
Lithosphere, asthenosphere, mantle, outer core, inner core
Commensalism
What drives an organism to evolve?
changes in the environment that make survival more challenging
Which type of dominance shows a blend between two dominant traits---like a pink flower from red and white parents.
Codominance
How many electrons are in the second electron shell?
8
Which rock forms from heat and pressure?
metamorphic
What is the difference between a food web and a food chain?
Food chain is linear and web is more complex, made of many food chains.
What is a transitional fossil?
A fossil of organisms that are intermediate to modern organisms and extinct organisms
Is this genotype dominant or recessive? Rr
Dominant because it has one dominant allele
What happens in a covalent bond?
Electrons are shared between atoms
Which law says that deposits are laid horizontally and that if they are tilted or folded, that happened after the layers were formed?
Law of Superposition
What are two examples of mutualism?
Clownfish and anemone
remora fish and shark
bees and flowers
Oxpecker and buffalo
Give an example of natural selection and an example of artificial selection.
natural--giraffe's necks, cheetah speed, camouflage
artificial--racing dogs, larger ears of corn, cat breeds
What is the difference between a genotype and a phenotype?
Genotype is the actual genes and alleles, whether dominant or recessive
Phenotype is the physical characteristic or expression of the gene--color, size
What is the activation energy?
The amount of energy needed to start a chemical reaction
subduction of oceanic crust
Why is only a small part of the energy produced in an energy pyramid moved up to the next level?
The energy is used in movement, reproduction, and growth
What is the difference between a molecule and a compound?
a molecule is two or more atoms in it and a compound is made of two or more different elements