Shared Flashcard Set

Details

Biology 155Q
Bio 155 Lab Exam #2 Flashcards: Eukaryotes and Prokaryotes
20
Biology
Undergraduate 1
04/13/2013

Additional Biology Flashcards

 


 

Cards

Term


Amphibians

Definition

Phylum: Chordata

Subgroup: Tetrapod

#Species in subgroup: 6150

Characteristics: Amphibian means "both ways of life", organisms in this group are adapted to both aquatic and terrestrial environments. They are mostly found in damp habitats liek swamps and rainforests. Rely on moisture and moist skin for gas exchange.

Ecological Impacts: There has been a rapid and alarming decline of amphibian population accross the world due to habitat loss, pollution disease and climate change. 

Term
Types of Amphibians
Definition

Salamanders: May be completely in the water. They live on land as adults or may be completely terrestrial. Salamander limbs gives them unique walk where their body bends from side to side. Adult frogs legs are better for land because they have strong hind legs

Caecilians: Legless, nearly blind amphibians that live in tropical areas where they can burrow themselves in most forest soil. 

 

Examples in Class: 

-Hell-bender Salamander: one of the largest salamanders found in North Georgia. Largest found in China

-Frog

-Toad

Term
Amniotes
Definition

Phylum: Chordata

Subgroup: Tetrapods

Types of Organisms in this Group: Mammals and Reptiles (including birds)

Characteristics: Produce an amniotic egg that is better suited for survival on land. Amniotic egg contains 4 specialized membranes which are extraembryonic layers. These layers grow from the embryo but don't develop into the body of the embryo itself. It allows the embryo to develop in an enclosed environment with the appropriate nutrients. It reduces itd dependence of water for survival. The amniotic egg of some are made of calcium or a leathery shell that surronds the egg. Some have embryos that develop withing mother's body: No need for shell.

-They use their rib-cage to ventilate their lungs while other organisms use their throat instead. 

 

Term
Reptiles
Definition

Phylum: Chordata

Subgroup: Tetrapods

Types of Organisms: Turtles, tortoises, lizards, snakes, crocodiles and birds

Characteristics: Reptiles have scales or feathers that protect the animal's skin. Internal fertilization, however they excrete eggs with shells. Snakes and lizards are cold-blooded (exothermic), while birds are warm-blooded (endothermic). Birds have had structural modifications, mostly to adapt to flight. They are also toothless. Turtles have box-like shells made up of shields. 

Ex: Rattlesnake, copperhead snake, humming bird, alligator and blue jay.

Term
Mammals
Definition

Phylum: Chordata

Subgroup: Tetrapods, Amniotes

Types of Organisms: Monotremes, Marsupials and Eutherians

Characteristics: Mammary glands which produce mile for their young. Hair on their bodies to help retain heat. More efficient respitory system (diaphram) and better circulation (4 chambered heart). Jaws of mammals have a variety of teeth with shapes and sizes for different foods. 

Term
Monotremes
Definition

Phylum:Chordata

Subgroup: Tetrapods, Amniotes, Mammals

Types of Organisms: Platypus and Echidna

Characteristics: Only found in Australia and New Guinea. Lay eggs and lack nipples. Their offspring get milk from glands are their fur. 

Example: Platypus

Term
Marsupials
Definition
Phylum: Chordata
Subgroup: Tetrapod, Amniote, Mammal
Characteristic: Give birth to live young. Their placenta is formed during development.
Ex. Kangaroo
Term
Eutherian
Definition
Phylum: Chordata
Subgroup: Tetrapod, Amniote, Mammal
Characteristics: Placental mammals. Their placentas are more complex than that of marsupials.
Types of Organisms: Elephants, manatees, aardvarks, primates. Humans both extinct and living are eutherians because they have a large brain and bipedal locomotion.
Term
Echinodermata
Definition
Invertebrate
#Species: 700
Characteristics: -Diverse group of slow moving marine animals that inhabit the ocean bottom.
-Internal calcarious skeleton is covered by a thick skin. In many forms the skeleton extends as bumps or spines.
-Tube feet- Used for locomotion, feeding and gas exchange
Types of organism:
-Starfish-power of regeneration, like it can replace a whole limb
-Sea cucumbers-can turn themselves inside out to escape predators. When they do this they leave some organs behind and the predators eat that while the sea cucumber slowly escapes.
-Sand Dollar
-Sea urchin
Term
Porifera
Definition
Invertebrate
Types of Organisms: Sponges
Characteristics: Don't have mouths but have pores in their walls which absorb water, then the cells within the sponge absorbs the nutrients in the water
Term
Cnidaria
Definition
Invertebrate
Characteristics: Found solely in marine environments
-Use cnidocytes to capture their prey
Examples: Jellyfish, corals, anemones, hydras
Term
Arthropoda
Definition
Invertebrates
Types of Organisms: Spiders, insects, crabs
-Bodies that are divided into repeated segments. usually with paired limbs. Hard exoskeleton.
Term
Nematoda
Definition
Invertebrate
aka. roundworm
-one of the most diverse of all the animal phyla.
-Have tubular digestive systems with openings at both ends
-Adapt to nearly all ecosystems, whether terrestrial or aquatic
-body is bilaterally symmetrical while the head is radially symmetrical.
-Slender worms that are usually less than 2.5mm in length
Term
Mollusca
Definition
Term
Annelida
Definition
Term
Difference between Volvox and Ameoba?
Definition
Volvox is an algae, which is a protist that is capable of photosynthesis. An Amoeba is a protozoan which has to depend on other organisms to obtain food (carbon source).
Term
Volvox
Definition
Green algae that is multicellular. It is a eukaryote. It has a nucleus, cell wall. Round and green.
Term
Amoeba
Definition
Unicellular
-Protist
-Consumes food by phagocytosis.
=Membrane enclosed organelles and nucleus.
-Moves by pseudopodia, where the amoeba throws out some ectoderm and the endoderm follows.
Term
Elodea
Definition
Aquatic plant
-Eukarya, plantae
-Multicellular
-Its green because the chlorophyll gives it its pigment.
-Contains cell wall, chloroplasts (which were moving), cell wall, and nucleus.
Term
Rotifera
Definition
Supporting users have an ad free experience!