Life Science Questions! Ultimate Quiz: Trivia

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Life Science Questions! Ultimate Quiz: Trivia - Quiz

Do you know anything about life science? This quiz will reveal your knowledge. Life science is a division of science which involves living organisms and many different life processes. It can be any science that entails learning about organisms and their interrelationships as biology, medicine, or ecology. It studies how organisms live. See if you are an expert in life science by trying the quiz.


Questions and Answers
  • 1. 

    Which of the following is a characteristic shared by all animals?

    • A.

      Their bodies have many cells.

    • B.

      They eat autotrophs.

    • C.

      They reproduce sexually.

    • D.

      They have skeletons.

    Correct Answer
    A. Their bodies have many cells.
    Explanation
    All animals have bodies that are made up of many cells. This is a characteristic shared by all animals, as they are multicellular organisms. Some animals have trillions of cells, while others have fewer, but all animals are composed of multiple cells. This is in contrast to unicellular organisms, such as bacteria and protists, which are made up of only one cell. Having many cells allows animals to have specialized tissues, organs, and organ systems, which enable them to perform various functions necessary for survival and reproduction.

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  • 2. 

    What is the term for a group of tissues that work together to perform a specific, complex job?

    • A.

      Organism

    • B.

      Organ

    • C.

      Autotroph

    • D.

      Herbivore

    Correct Answer
    B. Organ
    Explanation
    An organ is a group of tissues that work together to perform a specific, complex job. Tissues are made up of similar cells that have a common function, and when these tissues come together, they form an organ. Organs are essential for the proper functioning of an organism's body and are specialized to carry out specific tasks. Examples of organs include the heart, lungs, liver, and brain.

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  • 3. 

    The process by which a new organism forms from the joining of an egg cell and a sperm cell is called

    • A.

      Asexual reproduction

    • B.

      Sexual reproduction

    • C.

      Regeneration

    • D.

      Budding

    Correct Answer
    B. Sexual reproduction
    Explanation
    Sexual reproduction is the correct answer because it involves the fusion of a male and female gamete (sperm and egg) to form a new organism. This process introduces genetic variation as the offspring inherits traits from both parents. Asexual reproduction, on the other hand, does not involve the fusion of gametes and produces offspring that are genetically identical to the parent. Regeneration refers to the ability of an organism to regrow lost body parts, while budding is a form of asexual reproduction where a new organism develops as an outgrowth or bud from the parent organism.

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  • 4. 

    An animal that has a backbone is called a(n)

    • A.

      Cnidarians

    • B.

      Predator

    • C.

      Vertebrate

    • D.

      Invertebrate

    Correct Answer
    C. Vertebrate
    Explanation
    A vertebrate is an animal that has a backbone. This means that it has a series of bones, called vertebrae, that run along its back and protect its spinal cord. Vertebrates include mammals, birds, reptiles, amphibians, and fish. Cnidarians are a group of animals that includes jellyfish and sea anemones, but they do not have a backbone. A predator is an animal that hunts and feeds on other animals, but this term does not specifically refer to animals with backbones. Invertebrates, on the other hand, are animals that do not have a backbone. Therefore, the correct answer is vertebrate.

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  • 5. 

    Energy for an animal's body comes from

    • A.

      Air

    • B.

      Water

    • C.

      Food

    • D.

      Growth

    Correct Answer
    C. Food
    Explanation
    The energy for an animal's body comes from food. Food provides the necessary nutrients, such as carbohydrates, proteins, and fats, which are broken down during digestion to release energy in the form of ATP (adenosine triphosphate). This energy is then utilized by the animal's cells for various physiological processes, including movement, growth, and reproduction. Air and water are important for respiration and hydration, respectively, but they do not directly provide the energy required for the body's functions. Growth, on the other hand, is a result of the energy obtained from food.

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  • 6. 

    What is the term for an animal that hunts and kills other animals for food?

    • A.

      Vertebrate

    • B.

      Carnivore

    • C.

      Predator

    • D.

      Herbivore

    Correct Answer
    C. Predator
    Explanation
    A predator is an animal that hunts and kills other animals for food. They are typically carnivorous, meaning they primarily consume meat. Predators play a crucial role in maintaining the balance of ecosystems by controlling the population of prey species. They have adaptations such as sharp teeth, claws, and keen senses that help them catch and subdue their prey.

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  • 7. 

    Which of the following is an adaptation for escaping a predator?

    • A.

      Eating only plants

    • B.

      Having radial symmetry

    • C.

      Being asymetrical

    • D.

      Having flesh that tastes bad

    Correct Answer
    D. Having flesh that tastes bad
    Explanation
    Having flesh that tastes bad is an adaptation for escaping a predator because it deters the predator from consuming the prey. If the predator finds the taste unpleasant or unpalatable, it is less likely to continue hunting or consuming the prey. This adaptation serves as a defense mechanism, as it reduces the likelihood of being preyed upon and increases the chances of survival for the prey.

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  • 8. 

    Which of the following describes the feeding behavior of cnidarians?

    • A.

      They are herbivores

    • B.

      They are omnivores

    • C.

      They are carnivores

    • D.

      They are autotrophs

    Correct Answer
    C. They are carnivores
    Explanation
    Cnidarians are carnivores because they primarily feed on other animals. They capture their prey using specialized stinging cells called nematocysts, which inject toxins to immobilize or kill the prey. Once the prey is captured, cnidarians use their tentacles to bring it into their mouth and digest it. This feeding behavior allows cnidarians to obtain the necessary nutrients and energy from consuming other organisms.

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  • 9. 

    How does a cnidarian capture prey?

    • A.

      By filtering prey from water

    • B.

      By paralyzing prey with venom

    • C.

      By pulling prey inside its osculum

    • D.

      By attaching itself to prey with suction

    Correct Answer
    B. By paralyzing prey with venom
    Explanation
    Cnidarians capture prey by paralyzing them with venom. Cnidarians, such as jellyfish and sea anemones, have specialized cells called cnidocytes that contain stinging structures called nematocysts. When a prey comes into contact with these nematocysts, they inject venom into the prey, paralyzing it and allowing the cnidarian to consume it. This method of capturing prey is an effective adaptation that allows cnidarians to obtain food and survive in their environment.

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  • 10. 

    Which of these are major types of worms?

    • A.

      Silkworms

    • B.

      Flatworms

    • C.

      Segmented worms

    • D.

      Roundworms

    Correct Answer(s)
    B. Flatworms
    C. Segmented worms
    D. Roundworms
    Explanation
    The major types of worms mentioned in the answer are flatworms, segmented worms, and roundworms. These are all different categories of worms that have distinct characteristics and belong to different phyla. Flatworms are characterized by their flat body shape, segmented worms have a body divided into segments, and roundworms are long and cylindrical in shape. These three types of worms are widely recognized and studied in the field of biology.

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  • 11. 

    Which of the following is a flatworm?

    • A.

      Leech

    • B.

      Earthworm

    • C.

      Hookworm

    • D.

      Planarian

    Correct Answer
    D. Planarian
    Explanation
    A planarian is a type of flatworm. Unlike leeches, earthworms, and hookworms, which belong to different phyla, planarians belong to the phylum Platyhelminthes. They are characterized by their flat and elongated bodies, bilateral symmetry, and simple organ systems. Planarians are free-living organisms found in freshwater environments and are known for their regenerative abilities. They have a simple nervous system and can regenerate into two separate individuals if cut in half. Therefore, the correct answer is planarian.

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  • 12. 

    The ability of an organism to regrow lost parts is called

    • A.

      Regeneration

    • B.

      Budding

    • C.

      Parasitism

    • D.

      Autotrophism

    Correct Answer
    A. Regeneration
    Explanation
    Regeneration refers to the ability of an organism to regrow or replace lost or damaged body parts. This process allows the organism to repair and restore its body structures, such as limbs or organs, after they have been lost or injured. Regeneration is a common phenomenon in many organisms, including certain animals, plants, and even some single-celled organisms. It is an important survival mechanism that enables the organism to adapt and recover from physical damage or environmental stressors.

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  • 13. 

    Organisms that grow on or in other organisms are called

    • A.

      Parasites

    • B.

      Hosts

    • C.

      Prey

    • D.

      Scavengers

    Correct Answer
    A. Parasites
    Explanation
    Parasites are organisms that grow on or in other organisms, known as hosts, and derive their nutrients from them. They rely on the host for survival and reproduction, often causing harm or disease to the host in the process. Unlike prey, which are hunted and consumed by other organisms, parasites do not necessarily kill their hosts immediately. Scavengers, on the other hand, feed on dead organisms, while parasites rely on living hosts. Therefore, the correct answer is parasites.

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  • 14. 

    Which of the following is a function of a mollusk's mantle?

    • A.

      It produces the shell

    • B.

      It enables the mollusk to move

    • C.

      It helps the mollusk digest food

    • D.

      It removes waste

    Correct Answer
    A. It produces the shell
    Explanation
    The mantle of a mollusk is responsible for producing the shell. The mantle is a thin layer of tissue that covers the mollusk's body and secretes calcium carbonate, which forms the shell. This shell provides protection and support for the mollusk's body.

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  • 15. 

    A mollusk's radula enables it to 

    • A.

      Reproduce

    • B.

      Remove oxygen from water

    • C.

      Removes waste from the body

    • D.

      Scrape food from a surface

    Correct Answer
    D. Scrape food from a surface
    Explanation
    A mollusk's radula is a specialized feeding structure that acts like a tongue with rows of tiny teeth. This enables the mollusk to scrape and grind food from a surface, such as algae or other organic matter. The radula is used to rasp or scrape away the food, allowing the mollusk to obtain nutrients and sustenance. This adaptation is essential for the mollusk's survival and feeding habits.

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  • 16. 

    Snails and slugs belong to which group of mollusks?

    • A.

      Gastropods

    • B.

      Arthropods

    • C.

      Bivalves

    • D.

      Cephalopods

    Correct Answer
    A. Gastropods
    Explanation
    Snails and slugs belong to the group of mollusks known as gastropods. This group is characterized by their single, coiled shell (in snails) or lack of shell (in slugs), as well as their muscular foot used for locomotion. Gastropods are the largest and most diverse group of mollusks, with over 60,000 known species. They can be found in a variety of habitats, including freshwater, marine, and terrestrial environments. Some gastropods are herbivores, while others are carnivores or scavengers. Overall, gastropods play important roles in ecosystems and have a significant impact on nutrient cycling and food webs.

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  • 17. 

    A bivalve obtains food by

    • A.

      Using a radula

    • B.

      Filtering it from the water

    • C.

      Trapping it between two shells

    • D.

      Grabbing it with its muscular foot

    Correct Answer
    B. Filtering it from the water
    Explanation
    Bivalves obtain food by filtering it from the water. They have specialized structures called gills that allow them to filter tiny particles of food, such as plankton, from the water. As water flows through their gills, they extract food particles and then transfer them to their mouths for ingestion. This method of feeding is known as filter-feeding and is common among bivalves like clams, mussels, and oysters. They rely on this process to obtain nutrients and sustain their growth and survival.

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  • 18. 

    How do Cephalopods move?

    Correct Answer
    jet propulsion
    Explanation
    Cephalopods move using jet propulsion. This means they expel water forcefully through a funnel-like structure called a siphon, allowing them to move in the opposite direction. By contracting their mantle muscles, they create a strong jet of water that propels them forward or backward. This method of movement allows cephalopods, such as squids and octopuses, to swim quickly and efficiently in their aquatic environments.

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  • 19. 

    An arthropod's tough outer covering is called a(n)

    Correct Answer
    exoskeleton
    Explanation
    An arthropod's tough outer covering is called an exoskeleton. This external skeleton provides support and protection for the arthropod's body. It is made of a tough, rigid material called chitin, which is similar to the material found in the shells of crustaceans. The exoskeleton also serves as a barrier against predators and helps prevent water loss. As the arthropod grows, it molts or sheds its old exoskeleton and forms a new one to accommodate its increasing size. This process is called molting and allows the arthropod to continue growing and developing.

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  • 20. 

    The bodies of all spiders have __________ body sections.

    Correct Answer
    2
    two
    Explanation
    Spiders have two body sections. The first section is called the cephalothorax, which contains the head and thorax fused together. The second section is the abdomen, which is where the spider's organs and reproductive structures are located. Having two body sections is a characteristic feature of spiders and distinguishes them from other arthropods.

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  • 21. 

    Which of these are Arthropods?

    • A.

      Centipede

    • B.

      Grasshopper

    • C.

      Lobster

    • D.

      Snail

    Correct Answer(s)
    A. Centipede
    B. Grasshopper
    C. Lobster
    Explanation
    Centipedes, grasshoppers, and lobsters are all examples of arthropods. Arthropods are a diverse group of invertebrate animals characterized by having jointed appendages, a segmented body, and an exoskeleton. Centipedes are elongated arthropods with many legs, while grasshoppers are insects that have six legs and two pairs of wings. Lobsters are crustaceans that have a hard exoskeleton and multiple pairs of legs. Snails, on the other hand, are mollusks and not arthropods.

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  • 22. 

    Which of the following is a characteristic shared by all insects?

    • A.

      One pair of antennae

    • B.

      Four legs

    • C.

      Three pairs of wings

    • D.

      Two body sections

    Correct Answer
    A. One pair of antennae
    Explanation
    All insects share the characteristic of having one pair of antennae. Antennae are sensory organs that insects use to detect their environment, including detecting food, mates, and potential dangers. Having one pair of antennae is a defining feature of insects and distinguishes them from other types of arthropods. Insects may have other characteristics such as four legs, three pairs of wings, and two body sections, but these are not shared by all insects.

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  • 23. 

    Camouflage benefits insects by helping them to

    • A.

      Obtain food

    • B.

      Move especially fast

    • C.

      Live in a variety of environments

    • D.

      Avoid predators

    Correct Answer
    D. Avoid predators
    Explanation
    Camouflage benefits insects by allowing them to blend into their surroundings and remain undetected by predators. This enables them to avoid being eaten and increases their chances of survival. By matching their coloration and patterns to their environment, insects can effectively hide and remain unnoticed, reducing the risk of predation. This adaptation is crucial for their survival in various environments where they may encounter different types of predators.

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  • 24. 

    Which of the following are Echinoderms?

    • A.

      Sea cucumber

    • B.

      Millipede

    • C.

      Brittle star

    • D.

      Starfish

    Correct Answer(s)
    A. Sea cucumber
    C. Brittle star
    D. Starfish
    Explanation
    Sea cucumber, brittle star, and starfish are all examples of echinoderms. Echinoderms are a group of marine animals characterized by their spiny skin and radial symmetry. They belong to the phylum Echinodermata, which also includes sea urchins and sand dollars. Echinoderms are typically found in oceans and have a unique water vascular system that helps them with movement and feeding. These organisms play important roles in marine ecosystems and exhibit a variety of interesting adaptations and behaviors.

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  • 25. 

    Fireflies use bioluminescence  to

    • A.

      Find water

    • B.

      Keep themselves warm

    • C.

      Reproduce and find a mate

    • D.

      Frighten predators

    Correct Answer
    C. Reproduce and find a mate
    Explanation
    Fireflies use bioluminescence to reproduce and find a mate. Bioluminescence is the production and emission of light by living organisms. Male fireflies use their flashing patterns to attract female fireflies for mating. Each species of firefly has a unique flashing pattern, which helps them identify and locate potential mates. The flashing signals are a form of communication between fireflies, allowing them to find and select suitable partners for reproduction. This behavior is crucial for the survival and continuation of the firefly population.

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 20, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • May 16, 2014
    Quiz Created by
    Materni
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