NEW
Font size
WorksheetsBiology unit 1
Total questions: 26
Worksheet time: 13mins
Define autotroph
Basic building blocks of protein molecules
Chemical reactions that do not require the presence of oxygen
Organisms that use energy from the sun or energy stored in chemical compounds to manufacture their own nutrients
Define Animalia
Number of live births per 1000 population in a given
that one of the basic groups of living things that comprises either all the animals or all the multicellular animals — compare animal kingdom, plantae, protista.
Basic building blocks of protein molecules
Define biomial Nomenclature
Two worded system developed by Carolyn Linnaeus to name species; first word identifies the genus of the organism, the second word is often a descriptive word that describes a characteristic of the organism.
A single cytoplasmic extension of a neuron; carries away from a nerve cell
Anything an animal does in response to a stimulus in its environment
Define classification
All the living organisms that inhabit an environment
Grouping of objects or information based on similarities
Field of biology that studies methods and implements plans to protect biodiversity
Archaebacteria
Chemosynthetic prokaryotes that live in harsh environments, such as deep sea vents and hot springs
Chemical reactions that do not require the presence of oxygen
And it’s a buck a hmmm it’s a buck a hmmm bye
Define class
Grouping of objects or information based on similarities
Taxonomic grouping of similar orders
Mircochondria is the power house of cells
Define cell
Basic unit of all organisms; all living things are composed of cells
When members of a species are held by people in zoos or other conservation facilities
grouping of objects or information based on similarities
Define Electron microscope
Cellular framework found within the cytoplasm composed of micro tubules and microfilaments
Instrument that uses a beam of electrons instead of light to magnify structures up to 500,000 times actual size; allows scientists to view structures within a cell
Abiotic factor is not Alive
Define external fertilization
Growth pattern where a population grows faster as it increases in size; graph of a exponentially growing population resembles a J-shaped curve
In fishes, fan shaped membranes used for balence, swimming and steering
Biotic factor is a living organism
Define Placenta
organ that provides food and oxygen to and removes waste from young inside the uterus of placental mammals
Molecule with unequal distribution of charge resulting in the molecule having a positive end and a negative end
Taxonomic grouping of similar classes
Protist
Algae
Bacteria
Soil
Define plantae
Plant
Fungí
Soil
Define tropism
Growth response is a plant to an external stimulus
Muscle that contracts under conscious control
Marrow composed of stored fats found in many bones
Define taxonomy
Growth response of a plane to an external stimulus
Branch of biology that groups and names organisms based in studies of their shared characteristics; biologists who study taxonomy are called taxonomists
Thick bands of connective tissue that attach muscles and to bones
Define spore
Smooth muscle bag that stores urine until it’s expelled from the body
Type of haploid reproductive cell with a hard outer coat that forms a new organism without the fusion of gametes
Define Dichotomous key
a key for the identification of organisms based on a series of choices between alternative characters.
An animal with no body cavities
Abiotic is a nonliving factor
Define kingdom
Taxonomic grouping of similar phyla or divisions
in insects, the free-living worm like stage of metamorphosis, often called a caterpillar
Genetic map that shows the location of genes on a chromosome
Define phylum
Small cell fragments in the blood that help blood clot after an injury
Molecules that absorb specific wavelengths of sunlight
taxonomic grouping of similar classes
Define order
A taxonomic rank used in classifying organisms, generally below the class, and comprised of families sharing a set of similar nature or character.
) A taxonomic group of one or more genera, especially sharing a common attribute.
Define Genus
Alteration of allergy c frequencies in a population by chance events; results in disruption of generic equilibrium
first word of a two-part scientific name used to identify a group of similar species
All of the alleles in a population’s genes
Define prokaryote
Unicellular organisms, such as bacteria, each of which is composed of a prokaryotic. Well. Prokaryotic cells lack internal membrane bound structures
Large molecule formed when many smaller molecules bond together.
Collection of dead marcophages and body fluids that form in infected tissues
Define eukaryotic
Procedure that tests a hypothesis by collecting information under controlled conditions
Unicellular or multicellular organisms, such as yeast, plants, and animals, composed of eukaryotic cells, which contain a true nucleus and membrane blind organelles
Fusion of male and female gametes
Define heterotrophs
Movement of individuals into a population
Organisms that cannot make their own food and must feed ok other organisms for energy and nutrients
Organism that is permanently attached to a surface
Total magnification
traits controlled by genes located on sex chromosomes
Growth and response of a llame to an external stimulus
For total magnification multiply the ocular power (10x) times the objective lens that is in place.
Define compound light microscope
When the population of a species is likely to become endangered
Instrument that uses light and a series of lenses ro
magnify objects in steps, can magnify an object up to 1500 times it’s original size
It’s an experiment, the standard against which results are compared
Define sucking
Substance composed of atoms of two or more different elements that are chemically combined
Period of inactivity in a mature seed prior to germination
sucking milk out of mammal
