Livingston Public Schools



CP Biology Name KEY Date Period

PRACTICE

PACKET

UNIT 1A: Characteristics of Living Things

CP Biology NAME:_______________________Date________ Pd____

Characteristics of Living Things

1) Circle any traits in the list below that are NOT mandatory characteristics of living things

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

_____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 / Development c Response / Stimuli

b) Development / Growth d) 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 / response C) stimulus / response

B) response / stimulus D) stimulus / stimulus

16) ________All living things are made of at least one:

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?

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

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

_____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?

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.

33) ________Two metabolic processes that can allow living things to obtain and use energy are:

A) Photosynthesis and Cell Respiration C) Heterotrophs and Autotrophs

B) Inhaling and Exhaling D) 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

A) It does not reproduce

B) It can not photosynthesize

C) It can not breathe

D) It can not perform metabolic functions

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”.

[pic]

_____41. Cellular respiration is performed by:

a. heterotrophs only b. autotrophs only c. all organisms

_____42. Photosynthesis (or chemosynthesis) can be performed by:

a. heterotrophs only b. autotrophs only c. 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?

A) Nutrition

B) Homeostasis

C) Responds to the environment

D) Reproduction

48) Circle all the examples of ASEXUAL reproduction.

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

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) kingdom C) phylum and class

B) genus and species D) mode of reproduction

_____56) The science of naming and classifying organisms is called:

A) taxonomy C) mutation

B) synthesis D) 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 kingdom c. phylum and class

b. genus and species d. order and family

_____60. For the organism Quercus rubra what is its genus?

a. Quercus b. 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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