Abeka 7th grade Science Quiz 21

instinct

Many animals are born with a built-in knowledge called ______.

syrinx

A bird's sound-producing organ is called n _______.

flyways

In their annual movement between habitats, birds follow the same routes, called _________.

incubation

In order for the chicks to develop properly, birds keep their eggs warm by __________.

rodent running

Birds will use _______________________ to alert other birds in the area of a predator's presence and to draw a predator away from a nest.

yolk. (C.)

Where are the nutrients stored in an egg?

air chamber. (D.)

Located at the end of an egg. When a chick hatches, it will pierce the inner shell membrane to breathe air in this chamber until it can beak through the thick egg shell.

germinal spot. (B.)

where the embryo will develop into a bird

albumen. (E.)

the white of an egg

chalaza. (A.)

a twisted cord on each end of the yolk that hold the yolk in the center of the egg