Biology ยท Science General

Diversity in Living Organisms

3,323 Questions

The diversity in living organisms deals with the classification of life forms into various kingdoms and phyla. This topic covers specific traits of bacteria, animal body cavities, and structural adaptations for survival. These fundamentals are crucial for biology sections in medical entrance and state board exams.

Animal phyla characteristicsBacteria and flagellaBiological adaptationsKingdom Animalia classificationBody cavity typesExtinct organism subphylaJawless animals identification

Diversity in Living Organisms Questions

Multiple choice

Hibernation occurs when:

  1. Geese fly to warmer climates in the winter.

  2. Bats decrease activity & breathing rate during cool seasons.

  3. Turtles form an attachment to a beach.

  4. A cat's learned behaviors are rewarded with treats.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Hibernation is a state of reduced metabolic activity, such as lower heart and breathing rates, that allows animals to survive periods of cold or food scarcity.

Multiple choice

Sarcodines means of locomotion is _.

  1. cilia

  2. flagella

  3. pseudopods

  4. in a parasite
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Sarcodines, such as amoebas, move by extending temporary projections of their cytoplasm known as pseudopods. These are often called false feet.

Multiple choice

Protozoans that live on or in a host are _.

  1. sarcodines

  2. ciliates

  3. flagellates

  4. parasites
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Parasites are organisms that live on or inside a host organism, deriving nutrients at the host's expense. Many protozoans are classified as parasites.

Multiple choice

Protozoans with cilia are called _.

  1. sarcodines

  2. ciliates

  3. flagellates

  4. parasites
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ciliates are a group of protozoans characterized by the presence of hair-like organelles called cilia, which they use for movement and feeding.

Multiple choice

Protozoans with flagella are called _.

  1. sarcodines

  2. ciliates

  3. flagellates

  4. parasites
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Flagellates are protozoans that possess one or more whip-like appendages called flagella, which are used for locomotion.

Multiple choice

Protozoans with pseudopods are called _.

  1. sarcodines

  2. ciliates

  3. flagellates

  4. parasites
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Sarcodines are a group of protozoans that move and feed using pseudopods. The most well-known example is the amoeba.

Multiple choice

Plant-like protists are called _.

  1. protozoans

  2. fungi

  3. algae

  4. bacteriophages
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Algae are photosynthetic, plant-like protists. They contain chlorophyll and produce their own food, similar to plants.

Multiple choice

Animal-like protists are called _.

  1. protozoans

  2. fungi

  3. algae

  4. bacteriophages
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Protozoans are heterotrophic, animal-like protists. They typically ingest food and are capable of movement.

Multiple choice

Which of the following is not a category in which protists are categorized?

  1. animal-like

  2. plant-like

  3. fungus-like

  4. bacteria-like
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Protists are traditionally categorized into three main groups based on their nutrition and movement: animal-like (protozoans), plant-like (algae), and fungus-like (slime molds/water molds). Bacteria-like is not a standard category.

Multiple choice

Eukaryotic single-celled organisms are called _.

  1. bacteria

  2. viruses

  3. protists

  4. bacteriophages
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Protists are a diverse group of eukaryotic organisms that are mostly single-celled. They do not fit into the plant, animal, or fungi kingdoms.

Multiple choice

35 phyla of the animal kingdom can be divided into two groups. What separates the two groups?

  1. whether they have fur or feathers

  2. whether they live on land or water

  3. whether they have more than one cell

  4. whether they are vertebrates or invertebrates
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The animal kingdom is primarily divided into vertebrates (animals with a backbone) and invertebrates (animals without a backbone). This is a fundamental distinction in animal classification.

Multiple choice

What information does the model communicate?

  1. Polar Bears are in the same family as wolves

  2. Polar Bears have the same characteristics as all other bears

  3. Pb don't have any characteristics in common w/ the starfish

  4. Polar bears have more in common with brown bears than pandas
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In the taxonomic model, organisms in the same genus share more characteristics. Polar bears and brown bears are in the same genus Ursus, while pandas are in a different genus.

Multiple choice

Which characteristic do all living organisms share?

  1. they respond to stimuli

  2. they make their own food

  3. they breathe through lungs

  4. the reproduce with two parents
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

All living organisms share certain characteristics, including the ability to respond to stimuli, reproduce, grow, and maintain homeostasis. Not all organisms make their own food or have lungs.