The buffering effect of the balance between carbon dioxide, bicarbonate, and carbonate is stronger in freshwater than it is in the marine environment.
Answer the following statement true (T) or false (F)
False
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If you were developing a transgenic strain of pest-resistant watermelons, which federal agency would primarily be responsible for regulating this biotech product?
A) FDA B) DEP C) USDA D) EPA E) DOT
Fertilization of an egg usually occurs in the upper third of an oviduct
Indicate whether the statement is true or false
Which of the following distinguish gnathostomes from other chordate lineages?
a. operculums b. jaws c. claspers d. bony scales
MPF activity was discovered when cytoplasm from a Xenopus M-phase cell was injected into Xenopus oocytes, inducing the oocytes to form a mitotic spindle
In a control experiment, Xenopus interphase cytoplasm was injected into oocytes and shown not to induce the formation of a mitotic spindle. Which of the following statements is not a legitimate conclusion from the control experiment? (a) The piercing of the oocyte membrane by a needle is insufficient to cause mitotic spindle formation. (b) An increased volume of cytoplasm is insufficient to cause mitotic spindle formation. (c) Injection of extra RNA molecules is insufficient to cause mitotic spindle formation. (d) Components of an interphase nucleus are insufficient to cause mitotic spindle formation.