Gastrulation is controlled by signal-sending cells that cause movement of neighboring cells, a process called
__________. Fill in the blank(s) with the appropriate word(s).
ANSWER: embryonic induction
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An essential nutrient __________
a. is produced in high quantities in the body b. is produced in small quantities in the body c. must be obtained through the diet d. is a rich source of minerals
Identify the mismatch in the following list of helminths and their common names.
A. Opisthorchis sinensis; liver fluke B. Trichuris trichiura; whipworm C. Ascaris lumbricoides; intestinal roundworm D. Taenia solium; pinworm E. Schistosoma mansoni; blood fluke
Explain how the use of Bt crops can result in the evolution of pesticide-resistant insect populations. What issues may
arise in this scenario? What will be an ideal response?
Which organelles serve as the energy centers for most protists?
A. mitochondria and endoplasmic reticulum B. mitochondria and plastids C. mitochondria and nucleus D. chloroplasts and Golgi bodies