Zoo u14 Mammals Vocab

Gestation

• Period from fertilization to birth in placental mammals.

• Time taken for an egg to hatch in reptiles.

• Duration of pregnancy in marsupials.

• Interval between birth and weaning in mammals.

Synapsid

• A vertebrate distinguished by a skull with one pair of openings in the side behind the eyes, e.g., mammals and their close relatives.

• A type of reptile characterized by a hard shell and cold-blooded metabolism.

• An amphibian that undergoes metamorphosis from a larval stage to an adult stage.

• A fish known for its ability to survive in both saltwater and freshwater environments.

Order Lagomorpha

• Rabbits and hares.

• Rodents and squirrels.

• Bats and flying foxes.

• Cats and dogs.

Molars

• Back teeth that grind food.

• Front teeth that bite food.

• Teeth used for tearing meat.

• Teeth that are primarily for aesthetics.

Trophic level

• Step in a food chain or food web.

• Type of ecosystem

• Level of biodiversity

• Species interaction type

Cenozoic Era

• Era that began about 66 million years ago, known as the 'Age of Mammals'.

• Period characterized by the dominance of reptiles.

• Era marked by the formation of the first land plants.

• Timeframe when dinosaurs roamed the Earth.

Canine Tooth

• A sharp tooth positioned near the front of jaws present in mammals (most prominent in carnivores) that has a single point shaped for piercing and holding onto food.

• A flat tooth located at the back of the mouth used primarily for grinding food.

• A small tooth found in the middle of the jaw that is used for tearing flesh.

• A large tooth that is primarily used for chewing and grinding plant material.

Therapsid

• A prehistoric reptile ancestor of mammals that developed from the synapsid.

• A type of dinosaur that lived during the Jurassic period.

• A modern mammal known for its unique adaptations.

• An ancient amphibian that thrived in water.

Placenta

• A structure that provides oxygen to the mother during pregnancy.

• A tissue formed within the uterus through which nutrients are passed from the mother to the embryo and its wastes are removed.

• An organ that produces hormones to regulate the menstrual cycle.

• A protective sac that surrounds the fetus during development.

Order Pinnipedia

• Dolphins, porpoises, whales.

• Seals, sea lions, walruses.

• Sharks, rays, skates.

• Turtles, tortoises, terrapins.