FISH
Fish use this to adjust their depth in the sea:
Strong, light-weight feathers that give birds their sleek shape:
contour
These traits belong to:______________
Give birth to live young
Young crawl into the mother's pouches
Includes opossums and koalas
marsupials
This structure is sensitive to water currents in a fish:
Trial-and-Error is a type of ___________.
Conditioning
cartilaginous or Chondrichthyes
The gizzard's purpose:
Mammals have a _______ chambered heart.
4
All vertebrates have a _____________
dorsal nerve cord
What type of behavior is done perfectly the first time with NO training?
innate
Describe the fish heart:
1 atrium and 1 ventrical
How does the gizzard work?
stones crush the food
HON: What is a fixed-action pattern?
HON:series of actions that an organism performs in response to a specific, called a sign stimulus
Agnathans are _______ fish.
Jawless
innate
This structure covers and protects the gills:
operculum
The YOLK provides____________ for the developing embryo.
nutrients
Connects the offspring to the placenta
umbilical cord
An example of a jawless fish would be:
sea lamprey
The ____________ is the shaft within the vane area of a feather.
rachis
EC: find it first in the book or notes!
smallest vessels carrying oxygen and nutrients to the body's tissues:
capillaries
What is incubating?
keeping the eggs warm before they hatch.
What is unusual about monotremes?
They lay eggs.
A perch would be in this group of fish: