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Biology: Growth and Development

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Questions and Answers

What is the process by which a zygote develops into a complex multicellular organism?

Evolution

Parthenogenesis

Natural Selection

Development (correct)

What is the starting point for development in most animals?

Sperm cell

Zygote (correct)

Egg cell

Adult stage

What is the term for the series of modifications that occur in a species over time?

Evolution (correct)

Ontogenetic Trajectory

Development

Natural Selection

What is the term for the series of stages that an animal goes through from zygote to adult?

Ontogenetic Trajectory Signup and view all the answers

What is the term for a type of asexual reproduction in which an offspring is produced from an unfertilized egg cell?

Parthenogenesis Signup and view all the answers

How do evolution and development relate to each other?

They are very closely linked Signup and view all the answers

What is the significance of trajectories in relation to evolution?

They are the result of prior evolution from earlier forms Signup and view all the answers

What is the relationship between evolution and development according to the text?

Evolution begets development, and development begets evolution Signup and view all the answers

What is heterochrony in the context of evolution and development?

A change in the ontogenetic sequence or trajectory Signup and view all the answers

What was the main difference between preformationists and epigeneticists?

Preformationists believed in a pre-formed adult, while epigeneticists believed in a guided developmental process Signup and view all the answers

What determines the kind of animal that the developmental process will build?

The structural genes and their DNA sequences Signup and view all the answers

What are the broadly defined stages of development that are common to most animals?

Zygote, cleavage, gastrulation, organogenesis, and growth Signup and view all the answers