Terms in this set (154)
The study of life
"Naked seeds", such as pine cones and other conifers.
A flowering plant which forms seeds inside a protective chamber called an ovary.
The study of plants
Broad, flat portion of a leaf.
vascular tissue that carries water upward from the roots to every part of a plant
Living vascular tissue that carries sugar and organic substances throughout a plant
Basic unit of life
A mature ovary of a flower that protects dormant seeds and aids in their dispersal.
A leaflike structure that encloses the bud of a flower.
The female reproductive part of a flower
The tip of the female reproductive structure of a flower where the pollen lands
Male part of the flower; made up of an anther and a filament.
Stalk that supports the flower
The fruit of a plant (bears seeds)
container; vessel; holder
Science of classifying organisms. Provides universal names for organisms.
Classifications of Living things.
End of a long bone
shaft of a long bone
Basic units of life
Groups of tissues that work together to perform a specific function or related functions
Groups of cells with a common structure and function.
groups of organs that perform specific functions in the human body
A large structure of the hindbrain that controls fine motor skills.
(Largest part of the Brain) Area of the brain responsible for all voluntary activities of the body
A flab of tissue that prevents food from entering the trachea, or windpipe, during swallowing
soft tissue hanging from the middle of the soft palate
-Blood is composed of cells (red and white) suspended in a liquid matrix called plasma
Membrane surrounding the heart
Divides the right and left chambers of the heart
A disease that is caused by a pathogen and that can be spread from one individual to another.
A tiny, nonliving particle that invades and then reproduces inside a living cell.
develop from hair follicles, on skin, inactive until puberty, secrete sebum
A structure that allows an embryo to be nourished with the mother's blood supply
the center of control of the endocrine system that secretes a large number of hormones (MASTER GLAND)
Hormone secreted by the anterior lobe of the pituitary gland; growth hormone.
hormone that stimulates the gonads
endocrine gland located below the voice box; it produces hormones which control metabolism
Islets of Langerhans
groups of pancreatic cells secreting insulin and glucagon.
glands that help the body recover from stress and respond to emergencies (Adrenaline)
A brain structure located near the thalamus that secretes melatonin.
Layers of skin
Epidermis, dermis, hypodermis
Filter blood from the renal arteries and produce urine as waste
the moment at which a female becomes pregnant
The period of time during which an embryo develops before being born
An abnormal state in which the body is not functioning normally
a bacterium, virus, or other microorganism that can cause disease.
single-celled organisms that lack a nucleus; prokaryotes
Began pasteurizing milk to kill bacteria
Father of microbiology
White blood cells
Red blood cells
English natural scientist who formulated a theory of evolution by natural selection
Survival of the fittest
the regular moth is speckled black and white, the evolution of them turned them all black
The gradual change in a species over time
The preserved remains or traces of organisms that once lived on Earth.
A random error in gene replication that leads to a change
All living things are composed of cells
Intermediate or in-between forms that show the stages of evolution
A system in which rock systems are arranged in their correct chronological order.
method used to determine the age of rocks using the rate of decay of radioactive isotopes
A community of organisms and their abiotic environment
A group of individuals that belong to the same species and live in the same area
A group of interdependent organisms inhabiting the same region and interacting with each other
An organism that lives on or in a host and causes harm to the host
An organism that can make its own food.
An organism that obtains energy by feeding on other organisms
An animal that hunts other animals for food
An organism that is killed and eaten by another organism
A relationship between two species in which both species benefit
A relationship between two organisms in which one organism benefits and the other is unaffected
(ecology) a community of organisms where each member is eaten in turn by another member
(ecology) a community of organisms where there are several interrelated food chains
the struggle between organisms to survive in a habitat with limited resources
a relationship in which one organism is harmed and the other is unaffected
Neither species benefits or is harmed
shows the relative number of individual organisms at each trophic level in an ecosystem
Diagram representing the biomass in each trophic level of an ecosystem
A model that illustrates the biomass productivity at multiple trophic levels in a given ecosystem.
Place where an organism lives
a community with stable vegetation existing in equilibrium with the environment
A community of living organisms of a single major ecological region.
An organism's particular role in an ecosystem, or how it makes its living.
Describes an organism that remains attached to a surface for its entire life and does not move
Capable of movement
Animals that chew cud
scientist who studies birds
Food material stored in the egg to nourish the embryo
The white of an egg
Primates without tails
Primates with tails
order of mammals that are capable of true flight
Animals with hooves
organism that obtains energy by eating animals
Chemical Reaction in which energy is primarily given off in the form of heat
a special scent organ locted on the roof of the snakes mouth
Receptor of infrared radiation (heat) on the heads of some snakes (pit vipers)
Scientists who study fish
studies reptiles and amphibians
Frogs and toads
Body Regions of Fish
Characteristics of Animals
Multicellular, Heterotrophic, Internal digestion, and Some mobile stage
A body covering, typically made of chitin, that provides support and protection
scientist who studies insects
Characteristics of Insects
3 pairs of legs, antennae, jointed legs, exoskeleton, compound eyes, wings on some
Half wings (true bugs)
A group of protozoans that move by waving tiny, hair-like organelles called cilia.
animal-like protists that use pseudopods for feeding and movement (ameba)
A free-living flatworm found in unpolluted ponds and streams.
a group of protozoans that move using a whip-like organelle called a flagellum
series of events that cells go through as they grow and divide
(adenosine triphosphate) main energy source that cells use for most of their work
A cell structure that controls which substances can enter or leave the cell.
A rigid layer of nonliving material that surrounds the cells of plants and some other organisms.
A jellylike fluid inside the cell in which the organelles are suspended
Powerhouse of the cell, organelle that is the site of ATP (energy) production
Found only in PLANTS! The color is green, make glucose in the plant, use C02
Site of protein synthesis
an internal membrane system in which components of cell membrane and some proteins are constructed
Organelle that packages and distrubutes molecules produced by the eurokaryotic cell.
Uses chemicals to break down food and worn out cell parts
Cell organelle that stores materials such as water, salts, proteins, and carbohydrates
A part of the cell containing DNA and RNA and responsible for growth and reproduction
A network of long protein strands in the cytosol that helps support the cell
Compounds that reduce the concentration of hydrogen ions in a solution.
Arrangements of music transferred from one medium to another
Process by which mRNA is decoded and a protein is produced
Copying process by which a cell duplicates its DNA
DNA segments that serve as the key functional units in hereditary transmission.
An organism's physical appearance, or visible traits.
An organism's genetic makeup, or allele combinations.
monomer of nucleic acids made up of a 5-carbon sugar, a phosphate group, and a nitrogenous base
A change in a gene or chromosome.
An organism that is genetically identical to the organism from which it was produced
Passing of traits from parents to offspring