Organized
how are cells related to tissues?
tissues are made of cells
name the 2 parts of the nervous system
1.Central Nervous System(CNS)
2.Peripheral Nervous System(PNS)
•What kind of signal do the eyes detect?
signals in the form of light rays
All living things are made up of ____________
Cells
Compare the human body to an oak tree. A human’s skin is most like which part of an oak tree?
acorn
bark
leaf
root
bark
how are tissues related to organ?
organs are made of tissues
Central Nervous System is made up of .........
Brain and Spinal cord
•What is the lens?
a clear structure that focuses light
•Cells divide for ___________ main reasons.
2
During recess, Renee scraped her knee, so the nurse put a bandage on it. Which function would normally be provided by healthy skin but is now provided by the bandage?
providing friction for fingers
regulating body temperature
sensing when it is being touched
keeping bacteria out of the body
keeping bacteria out of the body
Which of these diagrams shows the level of complexity from simplest to most complex?
A. organism organs organ systems
B. organs organ systems organism
C. organ systems organism organs
D. organs organism organ systems
B
PNS Sends message through __________ and __________ nerve
1.Sensory Nerve
2.Motor Nerve
•What kind of signal does the nose detect?
chemical in air
A cell is _______________________________________
the basic unit of structure and function in a living thing.
After playing soccer in the sun for one hour, Ana is hot. Her skin produces sweat, which contains water and salt. How does Ana’s skin keep her body cool?
a.Salt traps heat near the skin.
b. Water keeps skin from getting too dry.
c. Waste salt is removed from the body in sweat.
d. Evaporation of water removes heat from the body.
d.Evaporation of water removes heat from the body.
where in the body would you expect to find muscle tissue?
arms, legs, neck, heart
What is the job of the brain?
It receives messages from the rest of the body and sends instructions back to the body, telling it what to do.
the part of the eye that gives your eye color is the ___________
iris
Chromosomes are made of _______________.
DNA
____________ is the outer layer of the skin.
Epidermis
where in the body would you find nervous tissue?
brain, spinal cord, sense organs
Rasheed accidentally bumped his leg on a desk. What is the first thing that happened within Rasheed’s nervous system?
A. He yelled, “Ow!”
B. The nerves in his leg sensed pain.
C. The leg nerves sent a message to the brain.
D. The brain sent a message to the integumentary system.
C
light enters the eye through the _______________
Pupil
What takes place during mitosis?
One cell divides into two identical cells.
_________________ is the inner layer of the skin
Dermis