External structures
External organs are located ________ the body.
outside
inside
Why do we think penguins have a thick layer of fat beneath their feathers?
Penguins live in very cold environments. The thick layer of fat helps to keep them warm.
One external organ most animals have, including squid, is their eyes. What type of organ are the eyes?
sensory
Some animals have one heart as an internal organ. How many hearts does a squid have?
three
Why do we think a stick bug looks like a stick?
Looking like a stick allows the stick bug to blend into its environment. This adaptation helps it hide from predators.
The buccal buld surrounds the squid's mouth. What is the function of the buccal bulb?
Opens and closes the squid's mouth, allows it to eat
Some of the internal structures of a squid allow them to create new life. These are called the ________________ organs.
reproductive
Why do we think wolves hunt in packs?
Wolves hunt in packs because it increases the liklihood of catching/killing their prey. This behavioral adaptation helps them survive by getting them more food.
Some animals have feathers as an external structure. Others have scales. What do mammals, including humans, have?
hair/fur
What internal organ gives many animals, including squid, the ability to digest food?
stomach
Why do we think hummingbirds have a long, narrow beak?
Hummingbirds have a long, narrow beak because this structural adaptation makes it easier for them to drink nectar from flowers.
Which external structure on the squid gives it the ability to move around and interact with its environment?
tentacles
The hearts of the squid pump blood throughout its body. Many other animals have a similar internal structure. The heart, blood, and blood vessels in an animal are called the ______________ system.
circulatory
Why do we think male peacocks have bright colored feathers?
Male peacocks have bright colored feathers to attract the females, which are called peahens. This helps them to reproduce.