Introduction to Animal Development

Created by

Karla

Cards (74)

What are the terms 'deuterostome' and 'protostome' related to?
Embryonic development in animals
What does the term 'cleavage' refer to in embryonic development?
Cell division after fertilization
What is the function of gills in animals?
Respiration
What are the general characteristics of animals?
Multicellular, eukaryotic, heterotrophic organisms
What type of reproduction do most animals undergo?
Sexual reproduction
What is the role of embryonic tissues in animals?
They give rise to adult body parts
What is the term for the solid ball of cells formed during cleavage?
Morula
What happens during the process of gastrulation?
Cells invaginate to form the digestive tract
What are the two embryonic tissues formed during gastrulation?
Endoderm and ectoderm
What is the main advantage of radial symmetry?
Equal halves in any 2D plane
What are the five key transitions in animal evolution?
Symmetry
Tissues
Body cavity
Development of the organism
Segmentation
What is the term for the hollow ball of cells formed after cleavage?
Blastula
What is the function of the ampullae of Lorenzini in sharks?
They detect electric fields in water
What is the term for the process where the zygote develops into multiple cells?
Mitosis
What is the significance of the blastocoel in embryonic development?
It is the inner cavity of the blastula
How does the process of cleavage differ from mitosis?
Cleavage results in smaller cells
What is the role of the mesoderm in embryonic development?
It gives rise to organs like the heart
What is the term for the opening formed during gastrulation?
Blastopore
What is the significance of the archenteron in embryonic development?
It becomes the digestive tract
How does the presence of specialized tissues differentiate animals from sponges?
Sponges lack true tissues
What is the role of the ectoderm in embryonic development?
It forms the outer layer of the skin
How does cephalization benefit bilateral animals?
It enhances sensory perception and mobility
What type of symmetry do jellyfish exhibit?
Radial symmetry
What is the term for the study of animal classification?
Taxonomy
How do the characteristics of animals differ from those of plants?
Animals are heterotrophic and multicellular
What is the primary mode of nutrition for animals?
Heterotrophy
What is the significance of the diploid stage in animal life cycles?
It dominates the life cycle of animals
How does the presence of cell walls differ between animals and plants?
Animals lack cell walls, plants have them
How does the classification of animals help in understanding their evolution?
It reveals relationships and evolutionary history
What is the significance of the phylogenetic tree in biology?
It illustrates evolutionary relationships among species
What is the term for the process of fertilization in animals?
Fusion of sperm and egg
What is the role of the blastula in embryonic development?
It is a stage before gastrulation
How does the process of gastrulation affect the future development of an organism?
It establishes the basic body plan and tissues
What is the term for the outer layer of the blastula?
Blastoderm
What is the significance of the mesoderm in animal development?
It forms muscles and internal organs
What is the role of the ectoderm in the development of the nervous system?
It gives rise to the nervous system
How does the classification of animals into clades help in understanding their evolution?
It clarifies evolutionary relationships and traits
What is the term for the process of cell division in embryos?
Cleavage
What is the significance of the diploid zygote in animal reproduction?
It is the first cell after fertilization
How does the presence of a body cavity benefit animals?
It allows for organ development and movement