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Name one animal that has bilateral symmetry
Name one animal that has radial symmetry
Bilateral: Humans, Lizards, Dogs, Cats
Radial:Sand Dollar, Octopus
What is Bilateral Symmetry?
A body plan in which an organism can be divided into two parts that are nearly mirror images of each other
What is radial symmetry?
A body plan which can be divided into two parts that are nearly mirror images of each other anywhere through its central axis
What is asymmetry?
A body plan that cannot be divided into any two parts that are nearly mirror images of each other
What is the main difference between invertebrates and vertebrates?
Vertebrates have a backbone and Invertebrates don't have a back bone.
What is an adaptation?
An inherited trait that increases the organisms chance of survival
What are mammary glands?
Special Tissues that produce milk for young mammals.
What is amunion?
A protective membrane that surrounds the embryo.
What is behavioral adaptation
Instincts you are born with
What are functional adaptations
Adaptations that enable animals to increase survival
What change in the habitat would cause amphibians population to decline?
If the body of water in the habitat dried up, then the amphibians couldn't lay their eggs.
What are parasites?
Animals that survive by living inside or on another organism, get food from that organism, and do not help that organism survive.
What is a notochord?
A flexible rod-shaped structure that supports the body of a developing chordate.
What are functional adaptations
Adaptations that enable animals to increase survival
What is a hydrostatic skeleton?
A fluid-filled internal cavity surrounded by muscle tissues.
Compare and Contrast:
Plants and Animals
Compare:
Both have cells with a nuclei.
Contrast:
Plants use photosynthesis to get their energy
Animals digest food to get their energy.
What are ectotherms?
Animals that heat their bodies from heat in their environments.
What are endotherms?
Animals that generate their body heat from the inside.
What is a exoskeleton?
A thick, hard outer covering
What is an endoskeleton?
The internal rigid framework that supports you and other animals
What type of habitat do amphibians need to survive?
They need a moist, warm, wet, climate.
Compare and Contrast: ectotherms and endotherms.
Ectotherms heat their body from the heat in their environment while endotherms generate their body heat from inside their body.
What is a mantle?
A mantle is a thin layer if tissue that covers a mollusk’s internal organs
What is metamorphosis?
The body form of an animal changes as it grows from an egg to an adult
What is molting?
An outer covering is shed and replaced is called molting.