Questions and Answers
What method does the amoeba use for reproduction?
Which statement accurately describes the amoeba's nutritional classification?
What structure do amoebas use to move?
In which kingdom is the amoeba classified?
Signup and view all the answers
What are the two parts into which the amoeba's cytoplasm divides?
Signup and view all the answers
What is the scientific name for amphibians?
Signup and view all the answers
How many chromosomes do amphibians have?
Signup and view all the answers
What is the term for the young stage of amphibians?
Signup and view all the answers
Which of the following is a method of respiration for amphibians?
Signup and view all the answers
What do the terms hibernation and aestivation refer to in amphibians?
Signup and view all the answers
What is the primary method through which amoeba reproduces?
Signup and view all the answers
What is the size of an amoeba?
Signup and view all the answers
Which part of the amoeba's cytoplasm is responsible for movement?
Signup and view all the answers
What are the false feet of an amoeba called?
Signup and view all the answers
How is the vacuole of the amoeba divided?
Signup and view all the answers
What is the primary function of the calyx in flowering plants?
Signup and view all the answers
Which part of the plant is responsible for male reproduction?
Signup and view all the answers
Which components are included in the gynoecium?
Signup and view all the answers
What type of pollination occurs when a flower's stigma receives pollen from its own anther?
Signup and view all the answers
What is the L.C.M. of the expressions 27a⁴bc² and 81a⁶c⁸?
Signup and view all the answers
Which expression is used to represent 100p⁵q⁴z⁵ in its factorized form?
Signup and view all the answers
Which of the following is NOT a function of nectar glands?
Signup and view all the answers
What are the factors in the expression 24p²q³x⁴ when factorized?
Signup and view all the answers
What is the final expression for the L.C.M. of 24p²q³x⁴, 100p⁵q⁴z⁵, and 300p³g⁴z⁸?
Signup and view all the answers
What role does the factorization method play in finding the L.C.M.?
Signup and view all the answers
Which characteristic describes an organism classified as a heterotroph?
Signup and view all the answers
What is a defining feature of amphibians during their developmental stages?
Signup and view all the answers
Which of the following statements is true regarding cold-blooded animals?
Signup and view all the answers
What is the scientific name of the frog mentioned in the document?
Signup and view all the answers
Which of the following describes the reproductive method of the amphibian discussed?
Signup and view all the answers
Study Notes
Amoeba
- Unicellular organism, typically heterotrophic and irregularly shaped.
- Enclosed by a cell membrane, with a size around 0.25 mm.
- Cytoplasm is divided into two regions: ectoplasm (outer) and endoplasm (inner).
- Contains two types of vacuoles: food vacuole for digestion and contractile vacuole for osmoregulation.
- Classified as Protozoa and part of the Kingdom Protista; reproduces asexually through binary fission.
- Eukaryotic organism with a single nucleus and capable of movement by extending pseudopodia (false feet).
- Nutritional intake occurs via phagocytosis, consuming bacteria and algae.
- Found in various environments including freshwater, marine, and soil.
Tetrapoda
- Major classification of vertebrates including terrestrial animals.
- Can range in size from approximately 1 cm to large species over 30 cm in Africa.
Amphibians
- Multicellular, cold-blooded animals that undergo metamorphosis.
- Young stage called tadpole; scientific name is Ranatigrina.
- Characterized by the absence of a neck and tail in adults.
- Exhibit separate sexes and reproduce oviparously.
- Possess 26 chromosomes and a heart with two chambers.
- Life cycle includes dual existence in both aquatic (tadpole) and terrestrial (adult) environments.
Locomotion and Physiology
- Amphibians use four limbs with fingers for movement and adaptation to land.
- Some species undergo hibernation in winter and estivating during summer.
- Respiration takes place primarily through lungs, supplemented by skin.
- Hearing is facilitated through a tympanic membrane (eardrum).
Plant Reproduction
- Flower structures include calyx (3-4 sepals for protection), petals (4-6) with nectar glands.
- Androecium contains male components: filament, anther, and pollen grains.
- Gynoecium includes female parts: stigma, style, and ovary.
Pollination
- Some plants rely on self-pollination, while others have mechanisms for cross-pollination.
General Characteristics of Cold-Blooded Animals
- Diverse group, including amphibians that demonstrate unique adaptative behaviors.
- Characterized by reliance on environmental temperatures for body heat regulation.
Summary of Observations
- Organisms like frogs and other amphibians exhibit distinct developmental stages.
- Adaptative traits include various reproductive strategies, respiratory methods, and sensory capabilities.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
This quiz explores the fascinating world of amoeba, a unicellular organism belonging to the kingdom Protista. Dive into its unique characteristics, including its irregular shape, reproduction method, and cellular structure, to test your understanding of this protozoan. Perfect for students seeking to deepen their knowledge of microbiology.
