Test 9 Flashcards
What is a hermaphrodite?
An organism capable of producing both male and female gametes, allowing it to reproduce independently.
What is metamorphosis?
A developmental stage where an immature organism undergoes significant changes in body structure to become an adult.
What is radial symmetry?
A body plan where parts are arranged around a central axis, creating mirror images from any angle.
What is an open circulatory system?
A circulatory system where blood is pumped into body cavities and comes in direct contact with organs.
What is external fertilization?
Fertilization that takes place outside the parents’ bodies.
What is mating?
The act of pairing male and female organisms for reproduction.
What is a compound eye?
An eye consisting of many small units, each producing part of an image.
What is a pollinator?
An animal that transfers pollen from one plant to another, aiding fertilization.
What are the different kinds of worms?
Worms can be classified into six groups, including flatworms, roundworms, tapeworms, segmant worms, flukes, hookworms and pinworms
How many legs do insects have?
Insects have three pairs of legs (six total) attached to their thorax.
How many legs do arachnids have?
Arachnids (e.g., spiders) have eight legs
What are myriapods?
Myriapods have many segments, each with legs attached.
What is an example of a mutualistic relationship in cnidarians?
Clownfish and sea anemones exhibit mutualism. Clownfish clean anemones, provide nutrients, and chase predators, while anemones protect clownfish by preying on other fish.
What are the two stages of life in cnidarians?
Cnidarians have two main life stages: the medusa stage and the polyp stage.
