anatomy
these light receptors detect color of the light on the retina of the eye
cones
fish have a heart with this many chambers
Two
new blood cells are found in the
bone marrow
the first step in evolution
hereditary variation
what is your main muscle Muscular system
skeletal, smooth and cardiac
the colored part of the eye is called the
iris
which features of a bird do not help it fly better
A hollow bones
B webbed feet
C feathers
webbed feet
the spongy bone is found in what part of your body
epiphysis
how do humans evolve
new gens
muscular system function
responsible for movement
light comes into the eye through this open space
lens
this animal has the ability to live in the most difficult environment and climate
fish
bones are held together with what
tendons
how do human develop
thay do
muscular system major organ
heart
smell receptor cells are called
odorant cells
what are the five main vertebrates
fish, amphibians, reptiles, mammals and birds.
what is your biggest bone in your body
The femur
how do animals evolve
Natural selection
what is muscle in the body that hold you up
Erector spinae or skeletal system
the focusing of light that enters the eyes is carried out by the
lens
what is the earliest known vertebrates
jawless fish
what is your longest bone in your body
The femur
how do animals evolve to adapt
natural selection
what is the major muscle in a reptile
puboischiofemoralis