an egg with a shell and/or external membrane that keep the embryo moist
100
What is the difference between unicellular an multi-cellular organisms?
unicellular organisms are comprised of one cell BUT multi-cellular organisms are comprised of many cells
100
What mnemonic device can be used to remember the 8 levels of classification?
Dumb Kids Playing Catch On Freeways Get Squashed
100
What is the difference between inherited and acquired traits?
inherited traits are passed down from generation to generation BUT acquired traits are traits that are learned and/or cannot be inherited
100
What is selective breeding?
The selection of individuals with desired traits for use in breeding
200
What is homeostasis?
the ability to maintain stable internal conditions
200
What is a eukaryote?
a cell with a nucleus
200
What are the 8 levels of classification (from most general to most specific)?
Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species
200
What is a Punnett Square? (for 400 extra points, solve the Punnett Square)
A chart used to determine all of the possible allele outcomes for an offspring
200
What is genetic engineering?
The deliberate modification of the characteristics of an organism by manipulating it genetic material
300
What is the difference between ectothermic and endothermic?
ectothermic organisms' body temperature controlled by envionment (cold blooded) AND endothermic organisms' body temperature controlled by body (warm blooded)
300
What is a prokaryote?
a cell with no nucleus.
300
What are the four kingdoms? (give a characteristic of each for 400 extra point!!)
Protista- eukaryotic organisms that cannot be classified as in any other kingdom; Fungi-eukaryotic organisms that reproduces using spores and are heterotrophs ; Plant-have cell walls and are autotrophs ; Animal-eukaryotic heterotrophs, this is the largest kindgom
300
What is the difference between dominate and recessive alleles?
A dominate allele is an allele whose trait always shows up in the organism when the allele is present. Represented by a capital leter BUT a recessive allele is an allele whose trait will only show up in the organism when the dominate allele is not present. Represented by a lower case letter.
300
What is natural variation?
differences among individuals of species; due to genetic variety, slight differences in the genetic code
400
What is the difference between radial symmetry and bilateral symmetry?
radial symmetry is having many lines of symmetry with one central point (ex. star fish or jelly fish) ANS bilateral symmetry is having one line of symmetry (ex. human or ant)
400
What are the 5 levels of organization (from smallest to largest)?
cells, tissue, organ, organ system, organism
400
What is an arthropod?
an inverterate in the animal kingdom that has an exoskeleton, segmented body and appendages
400
What plant did Mendel use to study heredity?
a pea plant
400
What is the difference between homozygous alleles and heterozygous alleles?
homozygous alleles are alleles that are the same(ex. BB xx zz DD) AND heterozygous alleles are alleles that are different (ex. Bb Xx Zz Dd)
500
What is the difference between vascular and non-vascular plants?
vascular plants have tube-like structures to help transport water BUT non-vascular plants do not. Water moves from cell to cell
500
What is the difference between an animal cell and a plant cell?
Plant cells have a cell wall and chloroplast
500
What is the difference between taxonomic levels "family" and "species"?
There are many species within a family AND living organisms of the same species are able to mate and reproduce with one another