Worksheet: The Living World | Science for ACT PDF Download

Section A. Fill in the Blanks

Q1: The process of classifying living organisms into different groups based on their similarities and differences is called ___________.

Q2: The scientific name of an organism consists of its ___________ and ___________ names.

Q3: In the five-kingdom classification system, algae are placed under the kingdom ___________.

Q4: The term "binomial nomenclature" was introduced by ___________.

Q5: The study of fossils is known as ___________.

Section B. Match the Column

Match the following terms with their respective descriptions.

Section C. Multiple Choice Questions

Q1: Which of the following is a characteristic of living organisms?
(a) Growth and development
(b) Air and water
(c) Rocks and minerals
(d) Static and unchanging

Q2: The highest taxonomic category in the hierarchy is:
(a) Genus
(b) Family
(c) Order
(d) Kingdom

Q3: What is the primary aim of classification?
(a) To identify organisms
(b) To group similar organisms together
(c) To count the number of species
(d) To name organisms

Q4: Which of the following is not a characteristic of living organisms?
(a) Reproduction
(b) Response to stimuli
(c) Homeostasis
(d) Inanimate nature

Q5: Who proposed the five-kingdom classification system?
(a) Carolus Linnaeus
(b) Charles Darwin
(c) R.H. Whittaker
(d) Aristotle

Section D: Assertion Reasoning Questions

Q1: Assertion: Binomial nomenclature uses two names, the genus name and the species name.
Reason: This system helps in providing a unique and universally accepted name for each organism.
(a) Both Assertion and Reason are true, and Reason is the correct explanation of the Assertion.
(b) Both Assertion and Reason are true, but Reason is not the correct explanation of the Assertion.
(c) Assertion is true, but Reason is false.
(d) Both Assertion and Reason are false.

Q2: Assertion: The classification system used for living organisms is based solely on their physical characteristics.
Reason: Molecular data and genetic information are not considered in classification.
(a) Both Assertion and Reason are true, and Reason is the correct explanation of the Assertion.
(b) Both Assertion and Reason are true, but Reason is not the correct explanation of the Assertion.
(c) Assertion is true, but Reason is false.
(d) Both Assertion and Reason are false.

Section E: Case Based Questions

Case 1: You are studying a newly discovered organism that is a multicellular eukaryote. It has chloroplasts, is autotrophic, and reproduces sexually. Based on these characteristics, suggest the kingdom to which this organism belongs and provide a brief explanation.

Case 2: In a field survey, you come across a group of organisms that are unicellular, lack a nucleus, and have a rigid cell wall made of peptidoglycan. Identify the kingdom to which these organisms belong and provide a brief explanation.

Section F: Short Answer Type

Q1: Explain the importance of binomial nomenclature in biological classification.

Q2: Differentiate between artificial and natural classification.

Q3: Define taxon and provide an example.

Q4: Why is the study of fossils important in understanding the living world?

Q5: Describe the role of a herbarium in the field of biology.

Q6: Name the three fields of systematics.

Q7: Write the correct order of sequence of taxonomical categories?

Section G: Long Answer Type

Q1: Explain the hierarchy of taxonomic categories, starting from the highest level to the lowest, with examples at each level.

Q2: Discuss the contributions of Carolus Linnaeus to the field of taxonomy and biological classification.

Q3: Compare and contrast the three-domain system and the five-kingdom classification system in taxonomy.

Q4: Describe the characteristics of living organisms that differentiate them from non-living entities.

Q5: Explain the significance of molecular data, such as DNA sequencing, in modern biological classification.

Q6: What is Binomial system of nomenclature? Who proposed this system? Why is binomial nomenclature the most acceptable mode of naming organism?