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TLS Online TPP Program

#Question id: 5645

A reproductive difference between sea urchins and humans is ________.

#Unit 5. Developmental Biology

  1. the sea urchin egg completes meiosis prior to fertilization, but meiosis in humans is completed after fertilization

  2. sea urchin eggs and sperm are of equal size, but human eggs are much bigger than human sperm

  3. sea urchins, but not humans, have a need to block polyspermy, because only in sea urchins can there be more than one source of sperm to fertilize the eggs

  4. sea urchin zygotes get their mitochondria from the sperm, but human zygotes get their mitochondria from the egg

More Questions
TLS Online TPP Program

#Question id: 11245

#Unit 10. Ecological Principles

Monogamy is most prevalent among ______ and is rare among ________.
TLS Online TPP Program

#Question id: 11246

#Unit 10. Ecological Principles

Which of the following are mechanisms that help prey avoid being eaten by predators?
TLS Online TPP Program

#Question id: 11247

#Unit 10. Ecological Principles

The theoretical maximum population size that can be supported indefinitely in a given habitat is the _____________.
TLS Online TPP Program

#Question id: 11248

#Unit 10. Ecological Principles

Which factor could not be considered a factor of environmental resistance?
TLS Online TPP Program

#Question id: 11249

#Unit 10. Ecological Principles

Choose the density-dependent factor that will slow population growth as population size increases.
TLS Online TPP Program

#Question id: 11250

#Unit 10. Ecological Principles

The equation to describe the s-shaped growth curve that illustrates logistic growth is