Podcast
Questions and Answers
What is the fate of the blastopore in animal development?
What is the fate of the blastopore in animal development?
- Forms the mouth (correct)
- Develops into the digestive tube
- Gives rise to the coelom
- Forms the anus
Which clade includes hemichordates, echinoderms, and chordates?
Which clade includes hemichordates, echinoderms, and chordates?
- Basal animals
- Ecdysozoa
- Lophotrochozoa
- Deuterostomia (correct)
What do sponges lack that places them as basal animals?
What do sponges lack that places them as basal animals?
- A backbone
- Digestive tube
- True tissues (correct)
- Coelom
What is Eumetazoa known as?
What is Eumetazoa known as?
Which clade includes animals that lack a backbone except for Chordata?
Which clade includes animals that lack a backbone except for Chordata?
What defines animals as multicellular organisms?
What defines animals as multicellular organisms?
Which term describes an organism that cannot manufacture its own food?
Which term describes an organism that cannot manufacture its own food?
What mode of nutrition do animals primarily rely on?
What mode of nutrition do animals primarily rely on?
Which of the following is NOT a defining characteristic of animals?
Which of the following is NOT a defining characteristic of animals?
Why is it important to consider animals as heterotrophs?
Why is it important to consider animals as heterotrophs?
Which criterion sufficiently defines animals as a distinct group?
Which criterion sufficiently defines animals as a distinct group?
What is the innermost germ layer that lines the developing digestive tube?
What is the innermost germ layer that lines the developing digestive tube?
Which group of animals lacks true tissues?
Which group of animals lacks true tissues?
What type of animals have both ectoderm and endoderm but lack a mesoderm layer?
What type of animals have both ectoderm and endoderm but lack a mesoderm layer?
Which type of animals possess a body cavity derived from both mesoderm and endoderm?
Which type of animals possess a body cavity derived from both mesoderm and endoderm?
In deuterostome development, what type of cleavage occurs?
In deuterostome development, what type of cleavage occurs?
Which stage involves solid masses of mesoderm splitting to form the coelom?
Which stage involves solid masses of mesoderm splitting to form the coelom?
What is a defining characteristic of animals according to the text?
What is a defining characteristic of animals according to the text?
In animal reproduction, what is formed after cleavage during early embryonic development?
In animal reproduction, what is formed after cleavage during early embryonic development?
What is a larva in the context of animal development?
What is a larva in the context of animal development?
When did vertebrates make the transition to land according to the text?
When did vertebrates make the transition to land according to the text?
What is a feature of bilaterally symmetrical animals?
What is a feature of bilaterally symmetrical animals?
What is the function of Hox genes in animals?
What is the function of Hox genes in animals?
What event marks the earliest fossil appearance of many major groups of living animals?
What event marks the earliest fossil appearance of many major groups of living animals?
Which germ layer gives rise to certain tissue types like muscles and bones?
Which germ layer gives rise to certain tissue types like muscles and bones?
"The global climate cooled" is associated with which era according to the text?
"The global climate cooled" is associated with which era according to the text?
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