Unit 4 Chapter 1 (1st Secondary) Biology

Its Scientific name is Felis domesticus.

The arrangement of living organisms in groups according to their similarities and differences is called _____ 

A group of individuals that have similar morphological characteristics, can mate with each other and produce fertile offspring that is similar to them ____

A system used for naming the living organisms and consists of two names, where the first name starts with a capital letter while the second one starts with a small letter ____

An animal is produced from the mating of a female horse with a male donkey ____

An animal produced from the mating of a female lion with a male tiger ____

A taxonomic level consists of a number of classes ____

The first name in the binomial nomenclature that begins with a capital letter ____

A series of descriptions that are ordered in pairs and lead the user to identify an unknown living organism ____

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

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

• Is similar to its parents

• Produces fertile offspring

• Is a sterile organism

• All the previous

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

• Family

• Class

• Phylum

• Species

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

• Genus

• Species

• Phylum

• Class

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

• Phylum

• Species

• Kingdom

• Class

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

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

• Linnaeus

• Aristotle

• John Ray

• Mendel

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

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

• Genus and Species

• Order and Class

• Family and Species

• Kingdom and Phylum

Which classification level is the MOST specific?

• Order

• Family

• Genus

• Species

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

Felis bieti, Felis chaus and Felis lybica are organisms having a common ----- but of different -----.

• Genus; class

• Class; genus

• Species; genus

• Genus; species

An organism is a heterotroph when it -------.

• Is only a herbivore.

• Eats only other species.

• Makes its own food.

• Gets food from outside itself.

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.

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

• Genus

• Species

• Order

• Family

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

• Species

• Order

• Class

• Family

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

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

• Phylum

• Class

• Host

• Organs of locomotion

Who was the scientist who developed the following classification system?

• Carl Linnaeus

• Aristotle

• John Whittaker

• Gregor Mendel

The scientific name of broad beans is …….

•   Vicia faba

• Vicia faba

•   vicia faba

•   Vicia Faba

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.

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

• Coronavirus is a new type of living organisms that we still do not have enough information about to be able to classify it within the 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.

• Coronavirus cannot be classified with the other similar prokaryotes because it is a unicellular prokaryote that shares some characteristics with protists.

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

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

• Prions

• Humans

• Bacteria

• Yeast

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

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

• Coleoptera

• Heteroptera

• Diptera

• Lepidoptera

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

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

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

• Plants

• Unicellular organisms

• Animals

• Classification

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

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.

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

• The first name represents the family and begins with a small letter, and the second name represents the species and begins with a small letter.

• The first name represents the genus and begins with a capital letter, and the second name represents the species and begins with a small letter.

• The first name represents the genus and begins with a capital letter, and the second name represents the family and begins with a small letter.

• The first name represents the species and begins with a capital letter, and the second name represents the genus and begins with a small letter.

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

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.

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.

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?

• Fungi A and B belong to the same family, which is not Trichocomaceae.

• Fungi A and B belong to the same genus but to different families.

• Fungus A belongs to the family Trichocomaceae.

• Fungi A, B, and C are different species belonging to the family Trichocomaceae.