Montwood - Biology Eoc Vocabuary - Part 5

Front 1

radial symmetry

Back 1

type of symmetry exhibited by a sand dollar

Front 2

Mollusca

Back 2

phylum that contains organisms with a mantle, bilateral symmetry, a digestive tract with two openings, and a muscular foot (some organisms with contain a hard shell - univalve or bivalve

Front 3

sessile

Back 3

term used to describe non-motile asymmetrical organisms

Front 4

swim bladder

Back 4

thin-walled, internal sac, found just below the backbone in bony fishes (used to control water depth)

Front 5

amphibians

Back 5

organisms with three-chambered hearts, eggs without shells laid in water, smooth moist skin, live larval stage in the water and adult stage on land and water

Front 6

birds (aves)

Back 6

organisms with adaptations for flight, feathers, a keel-shaped sternum, four-chamber heart, endothermic, reinforced hollow bones, a beak and air sacs

Front 7

reptiles

Back 7

organisms that are ectotherms that have dry, scaly skin, internal fertilization, and amniotic eggs

Front 8

amniotic egg

Back 8

provides nourishment to the embryo and contains membranes that protect it while it develops in a terrestrial environment

Front 9

uterus

Back 9

hollow, muscular organ in which offspring of placental mammals develop

Front 10

imprinting

Back 10

learned behavior in which an animal, at a specific crucial time in its life, forms a social attachment to another object

Front 11

digestive system

Back 11

system that functions to digest food, absorbs nutrients, and eliminates undigested food and other wastes

Front 12

negative feedback

Back 12

internal mechanism in which a substance is fed back to inhibit the original signal and reduce production of a substance (example: hormones in the endocrine system)

Front 13

homeostasis

Back 13

regulation of internal environment to maintain conditions suitable for survival

Front 14

cell specialization

Back 14

each cell does a specific function for a larger organ or tissue

Front 15

DNA replication

Back 15

process in which chromosomal DNA is copied before mitosis or meiosis takes place

Front 16

testosterone

Back 16

hormone in males that stimulates production of sperm, secondary sex characteristics, production of FSH and LH

Front 17

acquired immunity

Back 17

defending against a specific pathogen by gradually building up a resistance to it

Front 18

biomes

Back 18

group of ecosystems with the same climax communities; terrestrial or aquatic

Front 19

carrying capacity

Back 19

number of organisms of one species that an environment can support indefinitely

Front 20

chromosomes

Back 20

cell structures that carry the genetic material that is copied and passed from generation to generation of cells