Carboniferous and Permian Periods - Keywords

Carboniferous and Permian Periods - Keywords - Key Word...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Key Word Definition Key Points Abdomen The region of the body that contains much of the digestive tract and sometimes part of the reproductive system; in insects, the region behind the thorax Houses the digestive system In females it contains the eggs Albumen The most abundant protein in blood plasma, important for osmotic balance and pH buffering; also, the portion of an egg that serves as the main source of nutrients and water for the embryo Contains protein nutrients Allantois In an amniote egg, an extraembryonic membrane sac that fills much of the space between the chorion and the yolk sac and stores the embryo's nitrogenous wastes Packages waste Ametabolous metamorphosis Hemimetabolous Metamorphosis used by wingless insects Adults continue to mold Amnion In an amniote egg, an extraembryonic membrane that encloses the embryo, forming the amniotic cavity and secreting amniotic fluid. Which provides an aquatic environment in which the embryo develops “Encapsulated mini ocean” Embryo is suspended in here Reptiles use this strategy Amniotes Amphibia Came up to escape poor oxygen waters and to feed on insects Most are insectivores Appendages are directly connected to vertebral column Locomotion compressed lungs, still not perfect Have lungs, but most gas exchange occurs through the skin
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Skin is still moist Mucus glands secrete fluid to keep it moist for gas exchange They cannot do terrestrial reproduction Arbuscular mycorrhizal fungi Symbiotic association between a glomeromycete fungus and the roots of a wide range of plants, including nonvascular, nonseed and seed plants. Archegonium The flask-shaped structure in which brophyte eggs form Arthropod Ascocarp A reproductive body that bears or contains asci Ascomycota Ascus A saclike cell in ascomycetes (sac fungi) in which meiosis gives rise to haploid sexual spores (meiospores) Background extinction Extinction in which less than 50% of life is lost Basidium A small, club-like structure in which sexual spores of basidiomycetes arise Basidyomycota Occur in high moisture content Carboniferous period Had a small ice age, but not a massive one Big changes here, we start to see the use of lignin Large arthropods Amphibian start to flourish due to high moisture Oxygen levels sore to a 32-35%, will never reach this height again Fossilized wood becomes coal Very large plants Plants today were
Background image of page 2
trees back then Trees that have seeds will dominate Chorion In an amniote egg, an extraembryonic membrane that surrounds the embryo and yolk sac completely and exchanges oxygen and carbon dioxide with the environment; becomes part of
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 9

Carboniferous and Permian Periods - Keywords - Key Word...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online