10 Questions
What defines animals as multicellular organisms?
They lack cell walls and have unique nervous and muscle tissues
What is a defining characteristic of animals' cell structure?
Lack of cell walls and presence of collagen holding their bodies together
What is the nutritional mode of animals?
They are heterotrophs that ingest their food
What distinguishes animals from other life forms?
Multicellularity, heterotrophic nature, and development from embryonic layers
What is a unique defining characteristic of animals' tissues?
Nervous tissue and muscle tissue
What stage follows after cleavage in the development of an animal embryo?
Blastula
What is the sexually immature and morphologically distinct stage that eventually undergoes metamorphosis to become a juvenile?
Larva
Which genes regulate the development of body form in animals?
Hox genes
What is the closest living relative to animals, based on morphological and molecular evidence?
Choanoflagellates
Which group of protists is considered as the closest living relatives to animals?
Choanoflagellates
Test your knowledge of animal diversity with this quiz based on the lecture presentation from Campbell Biology Tenth Edition. Explore concepts such as animal mobility, traits for capturing prey, and examples like the chameleon's hunting technique.
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