Read pages 13-19. Complete the worksheet.
Biology- study of life
DNA- a code; traits
Stimulus- a trigger; a signal to which a living thing reacts
Homeostasis- balance; constant; esp. in the human body
Ex: body temp, blood sugar, blood pressure
Metabolism- breaking down of material
1. All the information that an animal needs to live is stored in its _DNA__
2. The part of earth where all living things are found is called the __biosphere__
3. All the reactions by which a living thing builds up and breaks down matter is called __metabolism_____
4. What is the difference between sexual reproduction and asexual reproduction?
Sexual reproduction requires two living things; asexual reproduction requires just one
5. Suppose you feel hungry, so you reach for an apple. How do stimuli both inside and outside your body lead you
to take the apple? It’s a response. You smell it and your mouth starts to water (salivate); stomach growling;
stomach hurts/feels empty. Seeing food pictures/or in real life
6. Suppose that two scientists are doing an experiment using dangerous chemicals. How might their safety be
affected by not using common measurements?
It could blow up because the measurements are off. Too much in one beaker; overflowing
7. Which field of biology is most interesting to you, and why?
Marine biology (Jon)- you can study sharks and other marine life
(Lance) Marine life- because it deals with animals
(Tyler Sc.) study of the tree of life-its talking about living organisms and putting it into one
Mrs. Shaak –Biotechnology- reduce illnesses
Big Ideas in Biology
8. Cellular basis of life
Key Ideas
Living things are made of cells; can have only 1 cell
(bacteria), or more than one cell
Information and Heredity
Code in DNA; universal genetic code;
“inheritance” –think widows peak or hair color, or
Val looking like her mom
Matter and Energy
Life needs matter (energy) found in foods to fuel
the body
Plants need sunlight (photosynthesis)
Growth, Development, and Reproduction
Structure and Function
Unity and Diversity of Life
Interdependence in Nature
Science as a Way of Knowing