Fertilization Stages Sequence and Embryo Development Hypothesis Quiz
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Questions and Answers

Which of the following is a function of the shoot system?

  • Anchor in ground
  • Absorb minerals
  • Photosynthesis (correct)
  • Absorb water

What is the most likely cause of the patient's body temperature maintaining higher than normal?

  • Up-regulation of the adrenaline receptors
  • Down regulation of the hypothalamus
  • Hypersecretion of thyroid hormone (correct)
  • Hyposecretion of mineralocorticoids

In comparing and contrasting testes and ovaries, which statement is TRUE?

  • Both are the sites of gametogenesis
  • Both contain cells targeted by LH and FSH (correct)
  • Only ovaries produce tropic hormones
  • Both produce estradiol and progesterone

If a sperm cell has defective egg receptors, which step of mammalian fertilization will be most directly prevented?

<p>Acrosomal reaction (B)</p> Signup and view all the answers

Which of the following statements is an example of a tropism?

<p>A plant orients its leaves toward a sunny window (D)</p> Signup and view all the answers

Which event occurs in the development of both sea urchins and humans?

<p>Gastrulation (B)</p> Signup and view all the answers

What is the correct sequence of stages during fertilization?

<p>Sperm reaches egg, levels of Ca2+ in cytoplasm rise, acrosome dissolves outer layer, first cleavage occurs, cortical granules release enzymes (D)</p> Signup and view all the answers

If a poison interferes with the notochord's ability to paracrine signal nearby tissue, what would be affected?

<p>The somites (C)</p> Signup and view all the answers

From which embryonic germ layer does the notochord develop?

<p>Mesoderm (A)</p> Signup and view all the answers

Which regulator/hormone pairs are CORRECTLY matched?

<p>Corticoids - steroid (A)</p> Signup and view all the answers

What is the correct sequence of reproduction and embryonic development stages in humans?

<p>Fertilization, secondary oocyte, blastocyst, gastrulation, embryo implants (C)</p> Signup and view all the answers

Which statements correctly describe the movement of water through the xylem of a plant?

<p>Enters via the roots and moves from sink to source (C)</p> Signup and view all the answers

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