12 Questions
Which of the following is a function of the shoot system?
Photosynthesis
What is the most likely cause of the patient's body temperature maintaining higher than normal?
Hypersecretion of thyroid hormone
In comparing and contrasting testes and ovaries, which statement is TRUE?
Both contain cells targeted by LH and FSH
If a sperm cell has defective egg receptors, which step of mammalian fertilization will be most directly prevented?
Acrosomal reaction
Which of the following statements is an example of a tropism?
A plant orients its leaves toward a sunny window
Which event occurs in the development of both sea urchins and humans?
Gastrulation
What is the correct sequence of stages during fertilization?
Sperm reaches egg, levels of Ca2+ in cytoplasm rise, acrosome dissolves outer layer, first cleavage occurs, cortical granules release enzymes
If a poison interferes with the notochord's ability to paracrine signal nearby tissue, what would be affected?
The somites
From which embryonic germ layer does the notochord develop?
Mesoderm
Which regulator/hormone pairs are CORRECTLY matched?
Corticoids - steroid
What is the correct sequence of reproduction and embryonic development stages in humans?
Fertilization, secondary oocyte, blastocyst, gastrulation, embryo implants
Which statements correctly describe the movement of water through the xylem of a plant?
Enters via the roots and moves from sink to source
Test your knowledge on the correct sequence of fertilization stages and predict the direct result of exposure to a poison affecting the notochord's signaling ability in nearby tissue. Choose the right order of events and understand the impact on embryo development.
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