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TLS Online TPP Program

#Question id: 11280

Ecosystem services include processes that increase the quality of the abiotic environment. Which of the following processes would fall under this category?

#10. Ecological Principles
  1. Keystone predators have a marked effect on species diversity.
  2. Green plants and phytoplankton produce the oxygen we breathe.
  3. Bees, flies, and wasps pollinate many plants.
  4. The presence of dams improves flood control
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TLS Online TPP Program

#Question id: 5554

#5. Developmental Biology

Even in the absence of sperm, metabolic activity in an egg can be artificially activated by ________.
TLS Online TPP Program

#Question id: 5555

#5. Developmental Biology

The formation of the fertilization envelope requires an increase in the cytosolic concentration of ________.
TLS Online TPP Program

#Question id: 5556

#5. Developmental Biology

Contact of a sea urchin egg with signal molecules on sperm causes the egg to undergo a brief ________.
TLS Online TPP Program

#Question id: 5557

#5. Developmental Biology

The plasma membrane of the sea urchin egg ________.
TLS Online TPP Program

#Question id: 5558

#5. Developmental Biology

Fertilization of an egg without activation is most like ________.
TLS Online TPP Program

#Question id: 5559

#5. Developmental Biology

During fertilization, the acrosomal contents ________.