CP BiologyNameKEYDatePeriod
PRACTICE
PACKET
UNIT 1A: Characteristics of Living Things
CP BiologyNAME:______Date______Pd____
Characteristics of Living Things
1) Circle any traits in the list below that are NOT mandatory characteristics of living things
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Made of Cells
Movement
Adapts and Evolves
Breathes (with lungs)
Responds to Stimuli
Obtains and Uses Materials & Energy
Based on a universal genetic code (DNA)
Shows Emotions
Maintains Homeostasis
Has specialized organs
Reproduces
Responds to the Environment
Evolve (as a group)
Grow and Develop
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_____2. In what basic way are living and nonliving things alike?
a. they are all made of atoms
b. they all exhibit all 8 features of life
c. they all are made of cells
d. they all can move
Directions: Read each scenario and answer questions based on your reading.
Scenario A: Computers can respond to stimuli in their environment. They are programmed to respond to typing and movements of the mouse. Computers also change over time. A state of the art computer this year will not be fast enough or have enough memory to keep up with the newer generations of computers in future years. Despite these characteristics, a computer is considered non-living.
3. What characteristics of life does a computer have?
___evolves as a group (change over time), respond to stimuli, obtain and use energy______
4. Why is a computer considered non-living if it has some of the characteristics of life?
___not maintaining homeostasis, not made up of cells, cannot reproduce, cannot grow and develop, no DNA (NOT ALL 8)
Scenario B: A scientist is studying a unicellular organism under a microscope. The scientist can see the cell go through cell division to make two identical cells. The organism will also move toward the light when given the option.
5. Explain what characteristics of life this organism is demonstrating by giving specific details from “Scenario 2”.
__made up of at least one cell, able to reproduce, respond to stimuli (environment), obtain and use energy
6. Explain which characteristics of life the scientist has not observed.
___DNA, maintain homeostasis, adapt and evolve, grow and develop______
______
7. What should the scientist look for in order to find evidence of these “missing” characteristics of life?
__change the temperature, observe over time, research (previous generations)__
______
Scenario C: When a person strikes a match it lights on fire. When you touch this fire to other objects, it creates more fire. The other objects (now on fire) can produce fire as well. If left alone, the flame will grow as long as it is near flammable objects.
8. What characteristics of life is the match demonstrating?
___reproduction, grow, respond to environment, obtain and use energy_____
______
9. What characteristics of life is the match not demonstrating?
__not maintaining homeostasis, not made up of cells, no DNA, cannot adapt or evolve
______
10. How might a scientist observe these “missing” characteristics to be able to determine that the match is or is not a living organism?
_____change conditions it cannot maintain homeostasis, use a microscope
______
Scenario D: Cows spend most of their day in the field eating grass. Grass is their primary source of food energy. In fact, cows have adapted to eating grass (which is hard to digest) by having multiples stomachs. Cows spend almost all of their time on their feet (even when they are sleeping), but when it is about to rain, cows will often lay down in the field.
11. What characteristics of life is the cow demonstrating?
__obtain and use energy, respond to stimuli, adapt and evolve, maintaining homeostasis
______
12. What characteristics of life is the cow not demonstrating?
_____grow and develop, DNA, cells, reproduce______
______
13. How might a scientist observe these “missing” characteristics to be able to determine that the cow is or is not a living organism?
__watch them over time, microscopes, record temperature______
______
14)______A increase in size or number of cells would be an example of __?__, while changes in an organisms form would be an example of __?__.
a)Growth / Developmentc Response / Stimuli
b) Development / Growthd) Metabolism / Energy
15)______A teacher suddenly turns on all the lights after her powerpoint presentation. The pupils in her students’ eyes quickly contract. In this scenario, the lights is the __?__ and the change in pupil shape is the __?__.
A) response / responseC) stimulus / response
B) response / stimulusD) stimulus / stimulus
16) ______All living things are made of at least one:
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a. DNA molecule
b. bone
c. cell
d. organ
17) List three examples of unicellular organisms
_bacteria______amoeba______yeast______
18) List three examples of multicellular organisms
_humans______dog______rose______
19) ______Algae are unicellular protists that live in large colonial groups (millions of cells all living together). A common name for algae is seaweed. Why is algae not considered multicellular?
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A) It does not move
B) It does not perform Cell Respiration
C) It does not have DNA
D) It does not have cell specialization
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20. Which of the following is the correct order for the cellular hierarchy?
a. atom, cell, tissue, molecule, organ, system organ, organism
b. molecule, cell, tissue, organ, organ system, organism
c. molecule, tissue, cell, organ system, organ, organism
d. molecule, cell, organ, tissue, organ system, organism
21. Classify each of the following as a “U” (unicellular) or “M” (multicellular) organism.
_U___a. a bacterium_M___c. a mushroom
_M___b. a human_U___d. a paramecium
22. Put the following in order from smallest/most basic (1) to largest/most complex (7).
__2__molecule__3__cell_4___ tissue
__5__organ__6__organ system
__7__organism__1__atom
23. Now do the same as you did above, with specific examples.
_1___ carbon, hydrogen, oxygen, nitrogen, iron atoms__3__ a cardiac muscle cell
__4__ layers of cardiac muscle__6__ circulatory system
__5__ heart__7__ a human being
__2__proteins, lipids, hemoglobin, carbohydrates, DNA
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_____30) Circle the examples that are NOT examples of adaptations and evolution.
a)individual coyote can run faster than the others
b)population of Bacteria become resistant to hand sanitizers
c)single polar bear adapts to the cold by suddenly deciding to grow white fur
d)species of fox has fur that changes color in the winter months
e) a frog grows from a tadpole to an adult
31) ______What creates new traits within a species?
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A) Introduction of a Predator
B) Mutations
C) Cell Respiration
D) Homeostasis
32. The Story of the Peppered Moths
Directions: Read ALL of the following sentences and number them in the CORRECT order based upon Charles Darwin’s concept of natural selection.
____2___Lighter moths were hard to spot against the light colored trees found around England.
____6___The population of peppered moths now consists of predominantly darker moths.
___3____During the Industrial Age, soot covered the trees, and turned them dark.
___4____Darker moths were easier to hide, and the lighter moths were much more visible against the dark trees.
__1_____Two shades of peppered moths lived simultaneously together in England before the Industrial Age – lighter moths and darker moth.
__5_____Birds spotted the lighter moths easier. The population of lighter moths decreased.
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33) ______Two metabolic processes that can allow living things to obtain and use energy are:
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A) Photosynthesis and Cell RespirationC) Heterotrophs and Autotrophs
B) Inhaling and ExhalingD) Transport and Movement
34)______Some organisms can perform___?___, but ALL organisms must perform ___?___.
A) Photosynthesis / Cell Respiration C) Heterotrophs / Autotrophs
B) Inhaling / Exhaling D) Cell Respiration / Photosynthesis
35) ______Any organism will die if
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A) It does not reproduce
B) It can not photosynthesize
C) It can not breathe
D) It can not perform metabolic functions
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36) Nutrition provides “food” for an organism. The organism later breaks down food molecules for energy to fuel life processes. Describe two strategies an organism can use to obtain nutrition.
A)___photosynthesis / chemosynthesis (autotrophs)______
B)___consuming (heterotroph)______
37) What are three life processes an organism would be unable to perform if cell respiration stopped?
__cellular respiration __reproduction______growth______
_____38. The tree in your backyard is
a. a heterotrophic organism that undergoes metabolic reactions such as cellular respiration.
b. an autotrophic organism that undergoes metabolic reactions such as cellular respiration.
c. an autotrophic organism that undergoes adaptation and evolution.
d. a heterotrophic organism that undergoes metabolic reactions such as photosynthesis.
_____39. What is the relationship between photosynthesis and cellular respiration?
a. the reactants of one become the products of the other
b. the reactants of one become the reactants of the other
c. the products of one become the products of the other
d. the products of one become the reactants of the other
40. In the sample food chain below, identify each consumer with a “C” and each producer with a “P”.
_____41. Cellular respiration is performed by:
a. heterotrophs onlyb. autotrophs onlyc. all organisms
_____42. Photosynthesis (or chemosynthesis) can be performed by:
a. heterotrophs onlyb. autotrophs onlyc. all organisms
_____43. What do producers need to make food during photosynthesis?
a)Oxygen and water
b)CO2 and sugar
c)CO2 and water
d)Sugar and oxygen
_____44. What types of organisms undergo cellular respiration?
a. Plants
b. Animals
c. Bacteria
d. All of the above
_____45. What are the products of cellular respiration?
a)Oxygen and water
b)CO2 and sugar
c)CO2 and water
d)Sugar and oxygen
_____46. Which of the following is an example of homeostasis?
a. regulation of blood glucose levels
b. maintaining water balance in cells
c. controlling body temperature
d. all of these
_____47) You notice that your neighbor's dog pants a lot in hot weather. Your neighbor explains that dogs don’t sweat, so they release excess heat by evaporation from the dog’s tongue while panting. The dog is maintaining what as a result of this behavior?
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A) Nutrition
B) Homeostasis
C) Responds to the environment
D) Reproduction
48) Circle all the examples of ASEXUAL reproduction.
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An acorn grows into a tree
A bird hatches an egg
A mold spore grows into new mold
A jellyfish buds
A sperm fertilizes and egg
A bacteria cell divides into two new cell
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Choose the type of reproduction that best fits each of the following statements:
a. asexual reproduction
b. sexual reproduction
c. both asexual and sexual reproduction
___C____49. Can be used to produce offspring
___B____50. Offspring have a combination of their parents’ genes
___B____51. Most beneficial type of reproduction environment that is changing
___A____52. Offspring are identical to the one parent that produced them
___B____53. Type of reproduction performed when plants make seeds
___A____54. Type of reproduction where only one parent is necessary
_____55) Using the system of binomial nomenclature, an organism is assigned a scientific name by its:
A) kingdomC) phylum and class
B) genus and speciesD) mode of reproduction
_____56)The science of naming and classifying organisms is called:
A) taxonomyC) mutation
B) synthesisD) adaptation
57. What is KPCOFGS? What does it stand for? Taxonomy hierarchy: Kingdom, Phylum, Class, Order, Family, Genus, Species.
Now, D (Domain) is added before phylum.
_____58. Which of the following sets of organisms are most closely related?
a. Homo sapiens and Felis domesticus
b. Rana pipiens and Rana clamitans
c. Quercus alba and Morus alba
_____59. What two classification categories make up an organism’s scientific name?
a. domain and kingdomc. phylum and class
b. genus and speciesd. order and family
_____60. For the organism Quercus rubra what is its genus?
a. Quercusb. rubra
_T__61. True or False: All organisms have a lifespan.
62. Why is a virus not considered a living thing?
______It does not exhibit ALL 8 characteristics of life. It is dependent upon a host to fulfill its needs (reproduction, energy requirements, etc.) Also, it is not made up of cells.______
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