cells
chemistry of life
evolution
Ecology
Gene expression
100
Which phase shows the nucleus disappearing and the chromosomes appearing?
Prophase
100
the smallest unit of matter that cannot be broken down by chemical means (contains a nucleus with protons and neutrons and an electron cloud)
Atom
100
was an English naturalist that established that all species of life have descended over time from common ancestors and proposed the scientific theory that this branching pattern of evolution resulted from a process that he called natural selection
Charles Darwin
100
a group of different species that live together in one area
ex. black bats, worms, moss, etc.
Community
100
The structure formed when a DNA molecule coils around histone proteins and is condensed
Chromosome
200
Which phase shows that mitosis is coming to an end?
Telophase
200
a pure substance made of only one kind of atom and represented by a symbol such as H for hydrogen
Element
200
a group of organisms share common descent if they have a common ancestor thus all living organisms on Earth are descended from a common ancestor.
Common ancestorey
200
he different species plus the environment; biotic factors and abiotic factors
ex. soil in that cave, light entering the cave, temperature in cave, humidity in cave, etc.
Ecosystems
200
The observable characteristics an organism, from the interaction between its genotype and environment
Phenotype
300
Cells which go through mitosis have a double set of chromosomes. This is called?
Diploid
300
atoms of an element that contain a different number of neutrons
Isotopes
300
to be paired for reproducing, or mate, with a closely related individual
Inbreed
300
sequence that links species by their feeding relationships
Good chain
300
The allele that is only expressed if there are two copies of it present
Recessive
400
Having a single set of unpaired chromosomes
haploid
400
when 2 or more atoms share electrons to form a molecule
Covalent bond
400
a structure that an organism has that is no longer useful to it, but that they have this structure because a common ancestor to that organism found it useful (Ex: Hip bones in whales)
vestigial structure
400
measure of the total dry mass of organisms in a given area
incorporated into the body of a consumer
Biomass
400
The fusion of gamete cells (ova-egg or sperm)
Fertilization
500
Humans have how many chromosomes?
23 pairs, 46
500
What percent of your body is water?
70%
500
trait controlled by a single gene (ex: attached or unattached earlobes)
Single gene trait
500
A characteristic that improves an individual's ability to survive and reproduce in a particular environment.
Adaption
500
3 adjacent bases on the mRNA (messenger RNA) that are read together during a process of Gene expression. However T (thymine) is replaced with U (Uracil)
Codon