1.

Which age structure category include human individuals that are capable of

reproduction ? - reproductive ages

2. Based on 2015 Census of Population, the City of Tagum has 1325 persons living in a

square kilometer considering a population of 259 444 individuals and a land area of

195.80 km² (Philippine Statistics Authority, 2016). Which property of human population

is described by “1325 persons living in a square kilometer”? -population density

3. Which of the following refers to those species that normally live and thrive in a particular

ecosystem ?- native species

4. The average number of children born to the women in a population during their

reproductive years is known as the _____________. - total fertility rate

5. Which of the following refers to the variety of terrestrial and aquatic ecosystems found in

an area or on the earth?- ecological diversity

6. Which of the following is the best modern definition of evolution?

-change in the number of genes in a population over time

7. Which term do ecologists use to describe the ability of a community either to resist

change or to recover to its original state after change? - stability

8. Which of the following refers to the variety of genes found in a population or in a species
which enable the earth’s species to survive and adapt to dramatic environmental changes? -
genetic diversity

9. Which of the following statements are TRUE of the current human population trend?

i. The rate of population growth has slowed.

ii. Human population growth is evenly distributed.

iii. People have moved in large numbers from rural areas to urban areas.

I and III

10. What are adaptations? - these are inherited characteristics of organisms that enhance
their survival.
 11. What interactions exist between a tick on a dog and the dog? - parasitism

12. Which of the following refers to the number of individuals in a population found within a

defined area? - population density

13. Which of the following refers to the role that a species plays in an ecosystem? - niche

14. Some butterfly species gain protection by looking and acting like other, more dangerous

species, a protective device known as _________. - mimicry

15. Some moths have large eyespots on their wings. What is the function of these eyespots?

to startle the moth’s predator.

16. Which of the following refers to the movement of individuals out of a population? -
emigration

17. More-developed countries have high rates of resource use per person. This points out to

the problem known as __________. - overconsumption

18. Which of the following refers to the process in which an entire species ceases to exist? -
Extinction

19. Which of the following could be a density-independent factor limiting human population

growth? - earthquakes

20. Which of the following refers to those species that provide early warnings of

environmental change in a community or an ecosystem? - indicator species

21. Which of the following factors lead to a decrease in human population?

I. Birth II. Death

III. Emigration IV. Immigration

II and III

22. Which of the following is defined as the maximum number of individuals that an area

can support? - Carrying capacity

23. Which of the following refers to the number of individuals in a population?

size/population size
 24. What interaction exists between a bee and a flower? - mutualism

25. Which of the following is most likely to contribute to density-dependent regulation of

populations? - intraspecific competition for nutrients

26. A tree offers a safe nesting site for birds, while birds eat the insects that cause damage to

trees. Which kind of interspecific relationship exists between involved species? - mutualism

27. Which of the following statements is TRUE of organisms which belong to the samespecies? -
the organisms can breed in natural setting

28. Evidence shows that some grasses benefit from being grazed. Which of the following

terms would best describe this plant-herbivore interaction? - mutualism

29. Which of these individuals is likely to be most successful in an evolutionary sense?

an organism that dies after five days of life but leaves 10 offspring, all of

whom survive to reproduce

30. Which characteristic of population refers to the scatter of individuals within its range? -
dispersion

31. Which of the following refers to the process in which one species splits into two or more

different species? - speciation

32. Many bad-tasting, bad-smelling, toxic, or stinging prey species have evolved brightly

colored advertising that helps experienced predators to recognize and avoid them. This

strategy is known as ____________. - warning coloration

33. Which of the following factors lead to an increase in human population?

I. Birth II. Death

III. Emigration IV. Immigration

a. I and IV

34. Top predators such as wolves and lions feed on and help to regulate the populations of
other species. These predators are considered as _____________. they only inhabit one
type of habitat
35. Which of the following is NOT true of generalist species? -these species can live in many
different places

36. Provided that all other factors remain constant, what will happen to population size if

birth rate equals death rate? - it remains the same./stable

37. Which of the following contributed to rapid human population rise?

i. l. early and modern agriculture development

ii. ll. technological advancement

iii. lll. death rates dropped

iv. lV. vaccine and antibiotic developments

I, II and IV

38. Which of the following terms refers to the number of offspring produced in a standard

time? - Birth rate

39. Which of the following refers to changes in the DNA molecules of a gene in any cell that can
be inherited by offspring? - mutation

40. What kind of interaction exists in a lion feeding on or all part of a zebra? - predation

41. What interactions exist between cellulose-digesting organisms in the gut of a termite and

the termite? - mutualism

42. Which of the following includes all others? - biological diversity

43. Which of the following refers to group of human individuals inhabiting a certain

geographic area? - population

44. When population growth levels off and then declines as birth rates equal and then fall

below death rates, then this population is said to be in ________ stage of demographic

transition. - postindustrial

45. Which stage in demographic transition is characterized by rapid population growth

because birth rates are high and death rates drop because of improved food production and
health? - transitional
46. If someone who studies ecosystem is known as ecologist, then someone who specifically
studies human population is best known as_____. - demographer

47. What is the basic unit of evolution? - population

48. According to Darwinian theory, which of the following exhibits the greatest fitness for

evolutionary success? The individuals within a population that have the greatest
reproductive success

49. Which of the following processes are also considered as functions of biodiversity?

i. l. Air and water purification ll. Decomposition of wastes

ii. lll. Renewal of topsoil lV. Pollination

iii. I, II, III and IV