Shared Flashcard Set

Details

science final
vocab
20
Science
7th Grade
05/04/2012

Additional Science Flashcards

 


 

Cards

Term
hereditary
Definition
the passing of traits from parent to offspring
Term
genetics
Definition
the study of how traits are inherited through the actions of alleles
Term
gregor mendel
Definition
The father of genetics
Term
punnet square
Definition
a tool to predict the probability of certain traits in the offspring
Term
alleles
Definition
an alternate form a gene may for a single trait
Term
genotype
Definition
the genetic makeup of a organism
Term
phenotype
Definition
outward physical appearance and behavior of an organism as a result of its genotype
Term
homozygous
Definition
describes an organism with two alleles that are the same trait
Term
heterozygous
Definition
describes a organism with two diffrent alleles for a trait
Term
mutation
Definition
any permanent change in a gene of chromosome
Term
cilia
Definition
in protist short threadlike structures that expand from the cell membrane to the ciliate and enable the organism to move quickly
Term
pseudopods
Definition
temporary cytoplasmic extension used by some protists to move and trap food
Term
saprophyte
Definition
organism that uses dead organisms as a food source and helps recycle nutrients so they are available for the other organism
Term
cuticle
Definition
waxy protective layer that covers the stem leaves and flowers and helps prevent water loss
Term
cellulose
Definition
chemical compound made out of sugar forms tangled fibers in cell wall of plants
provides structure and support
Term
vascular plant
Definition
plant with tubelike structures that move minerals water and other substances throughout the plant
Term
nonvascular plant
Definition
plant that absorbes water and other substances directly through its cell walls instead of through tubelike structures
Term
rhizoids
Definition
threadlike structre that anchor the nonvasucular plant to the ground
Term
pioneer species
Definition
first organism to grow in new or disturbed areas break down rock and build up decaying plant material so that other plants can grow.
Term
stomata
Definition
tiny openings in plants epidermis through which water vapor, and carbon dioxide and oxygen enter and exit
Supporting users have an ad free experience!