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Animals
Invertebrates
Vertebrates
Body Symmetry
Other
100
Over half of animal phyla consists of what animal?
Over half of animal phyla consists of worms.
100
What are invertebrates?
Animal that does not have a backbone.
100
What are vertebrates?
An animal with an internal skeleton and a backbone.
100
What are the two types of symmetry?
The two types of symmetry are radial and bilateral symmetry. radial symmetry is a body plan that can be divided along any plane through a central axis into roughly equal halves. Bilateral symmetry is a body plan that can be divided along one plane, through the cantral axis into equal halves.
100
What is coelom?
A fluid-filled cavity that provides space for the development and suspension of organs and organ systems.
200
What is the largest number of spexcies found in the Phylum Arthropoda and what is the approximate number?
The largest of animak species that have been identified about 80,000 are in Phylum Arthropoda which includes insects, spiders, lobsters and crabs.
200
About what percentage of animals are invertebrates?
About 95% of animals are invertebrates.
200
What is a notochord?
A flexible rod-shaped structure found in chordate animals; during vertebrate development it is replaced by the spine.
200
What does it mean to have an asymmetrical body plan?
Some animals have an asymmetrical body plan which means their body shape is irregular.
200
Explain the body plan of acoelomate and coelomate animals?
Acoelomate animals have flattened bodies. Coelomate animals have a body cavity in which complex internal organs can develop.
300
What are four characteristics all animals share? How many characteristics make them different from organisms in other kingdoms?
They are eukaryotic, multicellular organisms. Their cells do not have cell walls. They heterotrophs that usually ingest and then digest their food . They are usually mobile or have the ability to move at least one stage of their lives. they reproduce sexually and produce an embryo that undergoes stages of development. There are several characteristics that distinguish animals from other organisms.
300
What ecosystems do invertebrares occupy?
Invertebrates occupy almost all terrestrial and aquatic ecosystems on Earth.
300
What is a cartilage?
The flexible, non-bony, tough material found in vertebrate endoskeletons.
300
What is an example of an asymmetrical body plan?
Sponges.
300
What is segmentation and what is one advantage of it?
Segmentation is division of body into repetitive sections or segments. One advantage is that if a single segment was damaged the other would still continue to properly function.
400
What are two main characteristics used to classify animals?
Invertebrates and Vertebrates.
400
What type of invertebrate animals form parts of fossil records?
Those with hard parts form substantial parts of the fossil record.
400
What is a tetrapod and of the 5 major vertebrate animals which is not a terapod?
A tetrapod is a vertebrate with two pairs of limbs; an ambphibian, reptile bird or mammal. Fish are not includedand classified as a tetrapod.
400
Which animals are radial symetrical and which are bilateral?
Animals woth radial symmetry include corals and jellyfish. Animals withbilateral symmetry include worms, insects and vertebrates.
400
What are endoderm, mesoderm and ectoderm?
There are three layers of cells in all animals. Endoderm is the inner layer, mesoderm is the middle layer and ectoderm is the outer layer.
500
What is phyla? What number of phyla makes up thwe animal kingdom?
Phyla is a taxonomic rank below kingdom and above class. 35 phyla make up the animal kingdom.
500
What are the two body forms of cnidarians and name the other 5 invertebrate animals?
The two body forms of cnidarians are polyp and medusa. Polyp is the tube-shaped sessile body form of cnidarians.Medusa is the umbrella-shaped, free-swimming body form of cnidarians. The other 5 invertebrates are sponges, molluscs, echinoderms and arthropods.
500
How many species roughly are in the phylum of vertebrate animals and which are 5 major classes that divide the species?
The roughly 50,000 species in this phylum divide into 5 major classes- fish, amphibians, reptiles, birds and mammals.
500
What makes a hydra radial symmetrical and what makes a trutle bilateral?
The hydra is divided into 6 parts along any plane while the turtle is divided into 2 equal halves along one plane.
500
What is the difference between birds and reptiles and what is ectothermy and endothermy?
Reptiles are ectothermic and have a three-chambered heart. Birds are endothermic and have a four-chambered heart. Ectothermy is the reliance on environmental heat for determining internal body temperature.Endothermy is the metabolic heat to maintain a high constant body temperature.