6-6 KINGDOM 5 ANIMALS Flashcards
What type of cells do animals have?
Animals are eukaryotes with organelles.
Are animals unicellular or multicellular?
Animals are multicellular.
What surrounds animal cells?
Animal cells are surrounded by a cell membrane.
From what did animals evolve, and when?
Animals evolved 540 million years ago from protozoan colonies.
How do animals obtain energy?
Hetertrophs and endosymbiosis
What are the different types of body symmetry in animals?
A symmetry Bilateral Radial symmetry
Asymmetry
Asymmetry refers to having no specific shape.
Radial syjmmetry
Radial symmetry means having the same shape all around the body.
bilateral
Bilateral symmetry means having the same parts on two sides, with a true left and right side.
What are invertebrates, and what percentage of all animals do they constitute?
Invertebrates are animals without a nerve cord or spine/vertebrate. Invertebrates make up 95% of all animals. Invertebrates constitute 70% of all living species.
What are vertebrates, and what are their distinguishing features?
Vertebrates are animals with a nerve cord or spine/vertebrate. Vertebrates typically have gill slits and a tail at some point in their lives.
What are the characteristics of sponges?
Sponges might be the first animals because they are only made of cells doing different jobs and have no tissues.
How do sponges feed
they are filter feeders
What are the characteristics of cnidarians?
Cnidarians have radial symmetry. Cnidarians are the first animals with tissues but no organs. Cnidarians have a nerve net. Cnidocytes are stinging cells at the end of tentacles used for attacks. Cnidarians have a polyp stage
What are the characteristics of flatworms?
Flatworms have bilateral symmetry. Flatworms have the first organ, which is a digestive tube.
Ganglion
A nerve cluster
What are the characteristics of roundworms?
Roundworms are round for burrowing.Roundworms have the first organ systems.Having a ganglion signifies a basic nervous system structure.
What are the characteristics of segmented worms?
Segmented worms have their body in segments, making them stronger for digging.Segmented worms have the first true brain.
setae def
Setae are bristles used for movement and protection
What are the characteristics of mollusks?
Mollusks have a ganglion or brain, making them very intelligent.A mantle is a body tissue that makes a shell. Mollusks are the first and only animals to have shells, which are hard secretions for protection and body support.
What are the characteristics of echinoderms?
Echinoderms have radial symmetry.Echinoderms are the first animals to have an endoskeleton, which is an internal skeleton.Echinoderms are the first animals to have an endoskeleton, which is an internal skeleton.
What are the characteristics of arthropods?
Arthropods have bodies in segments with complex jointed parts like legs, antennae, mouth parts, and wings Arthropods have an exoskeleton, an external skeleton made of chitin. Metamorphosis is the process of changing from a larva into a mature sexual adult.
How significant is the arthropod group in terms of species count?
Arthropods are the largest group of life, making up 60% of all species and 85% of all animals. A quarter of all species on Earth are beetles.
Name examples and their ecological function
Examples include worms, crustaceans, and insects, which act as detritovores, breaking down and recycling dead organic material.
