Kevin’s Cards about Animals and Species Flashcards
What are thought to be the most ancient life-forms on earth
Archaea
What are thought to have evolved before oxygen gas was substantial in earth’s atmosphere
Archaea
All kingdoms get energy from what
Organic and inorganic substances
Which phylum are sponges in
Phylum Porifera
How many species of sponges are there in the world and where do they live
There are about 9,000 species of sponges living in both freshwater and marine around the world
How many sponges live in freshwater
100
How are is the sponges movement
Sponges are sessile; they are anchored in one spot
How do sponges feed
Sponges feed by taking in water through the holes in the sides of their bodies and forcing it to flow out the top. By doing so, they strain out plankton and other small organisms, such as bacteria
How simple are sponges
Sponges are the simplest of animals and have no nerves or muscles
Osculum Definition
The opening at the top of the sponge through which water exits
Collar Cells Definition
The site of water movement and food capture
Epidermis Definition
The outer layer of cells and sponge
Pores Definition
Cells that are modified to allow water to pass into a sponge
Spongocoel Definition
The inside cavity of a sponge
What is a sponges gender
Most sponges are male and female at the same time
What reproductive substances do sponges produce
Sperm and eggs
How is sperm in sponges carried
By water currents
Where do eggs stay in a sponge
In the body of a sponge
What type of reproduction describes the union of sperm and eggs
Sexual Reproduction
How do sponges reproduce asexually
By budding
Where are flatworms found
Flatworms are thin, small, flat animals found on the bottom of lakes or in wet soil
How many species of flatworms are there
More than 18,000
Planarians are a type of what
Flatworm
Can a Planarian regenerate it parts
Yes
What reproduction substances does a Planarian produce
Eggs and sperm
What is the most important flatworm to humans
The tapeworm
What are tapeworms
Tapeworms are parasites that mostly live inside the bodies of vertebrates
Where do tapeworms attach themselves
Tapeworms attach themselves to the inside of an animal’s intestine and absorb nutrients
How do tapeworms spread
Tapeworms spread when someone when someone eats raw foods
Which animals are in the Cnidarians group
Cnidarians include jellyfish, anemones, and coral
Which animals are in the Mollusks group
Mollusks include squid, octopus, clams, and scallops
How ,any phyla do invertebrates consist of
15
What type of body structure does a starfish have
Radial Symmetry
What kind of symmetry does a centipede demonstrate
Bilateral Symmetry
What kind of symmetry does coral demonstrate
Asymmetrical
Where do Cnidarians live
In both freshwater and saltwater
Cnidarians are mainly what type of animal
Marine animals
How many phases does a Cnidarians’ life cycle contain
Two distinct phases
What animal is sometimes mistaken as an underwater flower
Anemones
What is unique about Cnidarians
They have sting cells
How do Cnidarians’ sting cells operate
Cnidarians have a unique type of sting cell. They are consumers, and these stingers are useful for predation, as well as defense
What is one unique characteristic about Cnidarians
Obtaining food by the use of stingers is one characteristic of most Cnidarians
How do sting cells work
When the trigger is touched, a long filament whips out of the cell. This filament may be pointed, barbed, or poisonous. A small animal, such as paramecium, might be immediately killed. However, some poisons are so deadly they can kill a person
How do jellyfish reproduce
Jellyfish can reproduce asexually by budding or sexually
Polyp Definition
The sessile stage in the life cycle of a cnidarian
Medusa Definition
The free-living in the life cycle of a cnidarian
Jellyfish spend most of their lives as what
As a Medusa
Roundworms are also called what
Nematodes
How do roundworms reproduce
Sexually
Where are roundworms found
Roundworms are widespread and are found in aquatic habitats, wet soil, and plant and animal tissue
What percent of roundworms are parasitic
A small percent of roundworms are parasitic
Roundworms in tropical areas cause a disease called what
Elephantiasis
What does Elephantiasis cause
It causes lymph in the body, which causes swelling in tissues
Roundworms can form what
Cysts
Trichinosis Definition
A disease caused by eating undercooked pork and other meats, caused by the organism Trininella
What are cnidocytes
A unique type of stinging cell
How do mollusks reproduce
Sexually
Where do mollusks live
Mollusks live in fresh and marine waters and on land
Annelids include which animals
Segmented Worms
Arthropods include which animals
Insects and their relatives
Echinoderms include which animals
Sea stars and other relatives
The word “annelid” is Ancient Greek for what
“Little Ring”
Setae Definition
The paired bristles of earthworms and other annelids that emerge from each segment and aid in movement
What characteristics do some marine annelids have
Some marine annelids have fleshy, paddle-like protrusions
Clitellum Definition
The enlarged section of the earthworm body that is modified for reproduction
What are the characteristics of Annelids
Segmentation, Setae, Mouth and Anus, Clitellum
What is the digestive system in Annelids like
The digestive system is a straight tube
Annelids: Muscular System
Muscular— Contracts and expands to aid movement
Annelids: Digestive System
Digestive— Mouth and Anus; feed on decaying plants
Annelids: Nervous System
Nervous— Small brain in the front of the worm
Annelids: Circulatory System
Circulatory— large blood vessels run the length of the body and smaller ones arch around it
Annelids: Digestive System
Digestive— has an esophagus, gizzard, and intestine
Gizzard Definition
Where food is physically broken down
What does an Annelids Nervous System consist of
The Cerebral Ganglion and nerves
Cerebral Ganglion Definition
The major nerve center of the earthworm
Annelids: Respiratory System
Respiratory— oxygen comes through skin
Who are the most widespread and diverse groups of invertebrates
Arthropods
Insects, spiders, centipedes, lobsters, ticks, shrimp, and horseshoe crabs are apart of which invertebrate group
Arthropods
How many species of Arthropods are there
900,000
What does arthropod mean
“Jointed Foot”
Arthropod: Jointed Legs
Jointed legs— allow for a range of movement; a key factor in their success on Earth
Arthropod: Segmented Bodies
Segmented Bodies— bodies divided into 2 or more segments
Arthropod: Exoskeleton
Exoskeleton— a hard skeleton formed outside the body; made of a protein substance called chitin
Arthropod: Head
Head— in many arthropods, this includes well developed eyes
What are the characteristics of Arthropods
Jointed legs, segmented bodies, exoskeleton, head
What animal are the most numerous of Arthropods
Insects
Insects have jaw-like structures called what
Mandibles
How are insects circulatory and nervous systems
They have an open circulatory system and a complex nervous system
What does the abdomen of an insect house
Many of the organs
True of False: Insects do not have brains
False
What does Echinoderm mean
“Spiny skin”
Sea stars, brittle stars, sea urchins, sand dollars, crinoids, and sea cucumbers are in which group in the Kingdom Animalia
Echinoderms
What type of symmetry do most Echinoderms have
Radial Symmetry
Where is the mouth of a starfish located
Under the center of its body
Starfish: Digestive
Digestive— have two stomachs and digestive glands that run down the arms of the starfish
Starfish: Reproductive
Reproductive— Reproductive organs extend down their arms
How are starfish’s skin
Sea stars have skin that lies under an endoskeleton of hard plates
What is an unique system in Echinoderms
Echinoderms have a unique system called a water vascular system which is like a hydraulic system
Water Vascular System Definition
The hydraulic system of Echinoderms that aids in movement and promotes turgidity
Starfish: Tubular Feet
Tubular Feet— all the starfish to move
What is a ring canal
A ring canal is a ring structure that circles the central body and distributes water for the water vascular system (in starfish)
Vertebrates belong to which group
Chordates
Characteristics of Chordates: Notochord
Notochord— a stiff rod that develops down the back of the embryo
Characteristics of Chordates: Dorsal Nerve Cord
Dorsal Nerve Cord— a thick grouping of nerves that runs down the back, or dorsal, side of the embryo
Characteristics of Chordates: Pharyngeal Gill Slits
Pharyngeal Gill Slits— slits that develop in the throat area during embryonic development
What does the dorsal cord in humans develop into
The spinal cord