Nat Geo Notes for:

How Do Parts of Living Things Work Together?

  1. Organs in the human body – An organ is a ______in the human body that carries out specific jobs as you live and grow.
  1. These organs all work together to help the ______live and grow
  1. ______also have organs to carry out their life functions

Organ / System / Function / Facts
skin / 1. protects the body
2. cools the body
3. gets rid of waste
4. helps you feel _____and______/ Largest organ in the body
bones / 1. provides ______for the body
2. protects other organs
3. helps to make ______
4. stores ______your body needs / Spongy part of bones helps keep the bones lightweight but still ______. Adults have ______bones that are different sizes and shapes. Bones come together at ______.
muscles / 1. muscles ______(pull) and relax to help ______move
2. can be voluntary or ______/ 3 kinds of muscle:
1. skeletal – connected to ______(voluntary)
2. smooth muscle tissue - ______, bladder (involuntary)
3. ______muscle – heart only
circulatory / 1. pumps blood out to the body / 1. has ___ chambers
2. blood enters the top right chamber and then flows to the bottom ______chamber
3. Blood then goes to the ______.
4. Then it enters the top ______chamber and flows to the lower left
5. Then blood goes to the rest of the body carrying ______and oxygen to the other ______.
Organ / System / Function / Facts
respiratory / Where blood and air meet and exchange ______. / 1. involuntary
2. all body cells need ______and they produce ______as a waste that the body must remove
3. the blood can store only so much oxygen and carbon dioxide at any given time
stomach / digestive / Food mixes with other ______your body makes / ______churn the food much like a ______
small intestine / digestive / Nutrients are absorbed for the body to use / 1. most digestion happens here
2. about ______feet long
3. very small in diameter
pancreas / Makes ______that helps digest proteins and starches and keeps the right amount of sugar in your blood
digestive / Produces ______that helps digest ______food / A hamburger takes about _____ hours to digest
large intestine / digestive / Absorbs ______into the blood and keeps the waste until it leaves the body
excretory / Filters the ______/ 1. removes waste and extra ______from the blood
2. mixes the waste from the blood with the water that is absorbed by the ______
3. this makes ______.
bladder / excretory / Collects and stores urine until it leaves the body
brain / nervous / Controls the entire body and is the ______/ 1. cerebrum – controls ______muscles, speech and senses, and it allows you to think.
2. cerebellum – controls ______and posture, controls the movement of the body
3. brain stem – controls bodily functions that are ______- breathing, heartbeat, swallowing
4. sends and receives messages through the ______
eyes / sensory / Nerves that detect different kinds of information / detects light and ______
sensory / Nerves that detect different kinds of information / detects sound vibrations
sensory / Nerves that detect different kinds of information / detect particles in the air
sensory / Nerves that detect different kinds of information / detect taste
  1. Organs in Plants and Animals (Comparing/Contrasting humans to other animals and plants)
  1. Plants and animals other than humans have organs, too
  2. Mammals, birds, fish, etc. all have ______on the inside of their body (like humans)
  3. Insects, arthropods (shellfish) have ______, or skeletons on the outside of their body
  4. ______have the stem which acts to support the plant like a skeleton
  5. Getting Food
  1. Cows have a four-sectioned ______to help them break down the grasses they eat
  2. ______have a 2-sectioned stomach, one of which breaks down seeds because they don’t have ______to chew their food
  3. Spiders put digestive juice on or into solid food that turns it into a ______, then they drink it
  1. Getting oxygen
  1. Many animals have lungs that have the same function as human lungs
  2. Grasshoppers (insects) and spiders have a series of ______that carry gases to different parts of their body
  3. Fish have ______. Water moves over the gills and the ______moves from the water into the fish’s blood
  1. Plants need food and air, but they get and use materials differently than animals
  1. Plants can’t move around to get food, so they have to ______their own
  2. ______(an organ in the plant) anchor the plant and absorb water and nutrients from the soil
  3. ______are where the food is made (photosynthesis)
  4. leaf absorbs light
  5. ______from the air enters the leaf
  6. water from the roots enters the leaf
  7. these combine, mix together to make ______and ______
  8. the plant uses the glucose (food) and releases the oxygen into the air
  9. the water moves up the ______to the leaf, and the glucose moves down the stem to different parts of the plant