Unit 4 Chapter 1 (1st Secondary) Biology

1. Match the following:

Moth

Ant

Dragonfly

Includes several species

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2. The scientific name of broad beans is …….

Vicia faba

Vicia Faba

3. Taxonomy is the scientific study of ---------- .

Plants

Unicellular organisms

Animals

Classification

4. Which of the following characteristics would be most useful for a scientist classifying organisms into distinct groups?

Mode of nutrition

Method of excretion

Rate of cellular respiration

Rate of growth

5. It is difficult for mules to make gametes because they have an odd number of chromosomes. What does this lead to?

This leads to mules being found in a certain habitat.

This leads to mules not being considered a species.

This leads to mules being considered extinct animals.

This leads to mules being different from their parents in appearance.

6. Which group contains ONLY living or once-living matter? (Once-living matters are objects that used to be alive, but now are not).

Steel, wood, rubber, rock.

Hair, glass, steel, ink.

Hair, wood, blood, leaf.

Paper, sand, basalt, wood.

7. Assertion (A) Members of the same species cannot mate with each other. Reason (R) Zygote is produced as a result of fertilization.

(A) and (R) both are true and (R) is the correct explanation of (A)

(A) and (R) both are true and (R) is not the correct explanation of (A)

(A) is true and (R) is wrong

(A) is wrong and (R) is true

8. The taxonomic hierarchy of classification is ............

Kingdom - class - family - order - phylum

Kingdom - family - class - order - phylum

Kingdom - phylum - class - order - family

Kingdom - phylum - order - family - class

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10. Two organisms of same class but different families will be kept under the same ------.

Genus

Species

Order

Family

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12. One of the greatest contributions that Linnaeus made to science was his method of naming species. How are binomial names written correctly?

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14. Which of the following is less general in characters as compared to genus?

Species

Order

Class

Family

15. A student discovers an arachnid with a segmented abdomen, long legs, and a tail with no stinger. The student uses the dichotomous key below to identify it. Which arachnid has the student found?

Whip Scorpion

Wind Scorpion

Daddy long legs

Emperor Scorpion

16. ---------- classified animals into red blooded and bloodless ones.

Linnaeus

Aristotle

John Ray

Mendel

17. Dichotomous Key is ---------

The recognizable remains or body impressions of an organism that lived in the past

A tool that uses pairs of descriptive statements to identify an organism

The science of identifying, classifying, and naming living things

Grouping objects based on what they have in common

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19. An organism's binomial nomenclature is made up of its ----------.

Genus and Species

Order and Class

Family and Species

Kingdom and Phylum

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21. Which of the following best describes the difference between the DNA of bacteria and the DNA of eukaryotes?

Eukaryotes do not contain any unused sections of DNA, but bacteria do.

Bacterial DNA contains uracil instead of thymine.

Eukaryotic DNA contains uracil instead of thymine.

There are no differences between the DNA of bacteria and eukaryotes.

Bacteria do not contain any unused sections of DNA, but eukaryotes do.

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24. The following table for a dichotomous key is provided, where A fish is caught that has eyes on the side of its head and a wide body covered in spots. What kind of fish is this?

Cornetfish

Flounder

Puffer fish

Snappe

25. Which of the following best explains why coronavirus is not classified in any of the five kingdoms of Whittaker's system of classification?

Unlike all other classified organisms, coronavirus was discovered years after Whittaker's death.

Coronavirus, like all other types of viruses, has not been completely classified as a living or nonliving organism.

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27. Classification helps in:

Placing the new living organisms in their suitable places

Studying the evolution of living organisms

Studying the living organisms

All the previous

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29. Assume that two living organisms of the same genus, but different species, interbreed. This gives rise to a hybrid organism. To consider this hybrid organism a species, it must be --------- .

Significantly different in its morphology than its parents

Significantly different in its anatomy than its parents

Able to mate and produce fertile offspring

Able to mate and produce sterile offspring

30. Tigon is not given the term "species" because it ............

Is similar to its parents

Produces fertile offspring

Is a sterile organism

All the previous

31. Which classification level is the MOST specific?

Order

Family

Genus

Species

32. The ............. is classified into genera.

Family

Class

Phylum

Species

33. According to the dichotomous key shown below, to which order does the insect belong? Question1- Does the insect have wings? If Yes, …. Go to Q.2 If No,……….. Order Hymenoptera Question2- How many pairs of wings does the insect have? If One, …….. Order Diptera If Two, Go to Q.3 Question3- Does the insect have very tiny and difficult to see.? If Yes, ……Order Odonata If No, they have long ones ……. Go to Q.4 Question4- Are there two or three tail-like appendages at the tip of the abdomen? If Yes, ……. Order Ephemeroptera If No, Go to Q.5 Question5- Does the insect have five segments on each leg? If Yes, ……. Order Neuroptera If No, ……. Order Isoptera

Isoptera

Odonata

Diptera

Ephemeroptera

34. Why is it difficult to classify viruses into Whittaker's system of classification?

Because Whittaker’s system did not include classification of microorganisms

Because they have very few defining features

Because they were discovered after Whittaker created his system of classification

Because they share characteristics with both Kingdom Plantae and Kingdom Fungi

Because they are generally considered to be nonliving

35. Which of the following cannot be classified into a kingdom in Whittaker's system of classification?

Prions

Humans

Bacteria

Yeast

36. In binomial nomenclature, the 2nd name represents the .............

Genus

Species

Phylum

Class

37. Which of the following is not correct about the genetics of the three domains (Archaebacteria, Bacteria, and Eukaryotes)?

Bacteria have genes with no unused sections of DNA.

Archaebacteria have genes with unused sections of DNA.

Archaebacteria have cells that contain a nucleus.

Eukaryota have cells that contain a nucleus.

Bacteria cells do not have a nucleus.

38. A dichotomous key for insects is given. To what order does an insect with two pairs of scaly wings belong?

Coleoptera

Heteroptera

Diptera

Lepidoptera

39. Aristotle developed the first system of classification of animals. How did Aristotle classify animals?

Aristotle classified animals on the basis of the presence or absence of endoskeleton.

Aristotle classified animals on the basis of the presence or absence of exoskeleton.

Aristotle classified animals on the basis of the presence or absence of red blood.

Aristotle classified animals on the basis of the presence or absence of nerve cells.

40. The lowest level of classifying the living organisms .....................

Phylum

Species

Kingdom

Class

41. The following organisms shown in the picture below shares with Dino-flagellates a common .........

Phylum

Class

Host

Organs of locomotion

42. A simple dichotomous key used to identify groups of vertebrates is provided. An organism that has no fur, feathers nor scales is discovered. Using this dichotomous key, determine which group it is most likely to belong to.

Fish

Reptiles

Amphibians

Mammals

Birds

43. Different types of food mould belong to various phyla of fungi. The following table outlines three types of fungi, their scientific names, and the orders they are classified into as shown in the table below. If you know that Penicillium digitatum belongs to the family Trichocomaceae, which of the following statements about those three types of fungi is correct?