Freshwater is most likely to become contaminated or polluted by ________ from urban and rural environments
Fill in the blank(s) with correct word
runoff
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In the blood clotting process, platelets arrive at the site of damage and start secreting substances to attract more platelets. More platelets arrive at the site and secrete attractants to recruit more platelets. This is an example of:
A. negative feedback. B. positive feedback. C. feedforward regulation. D. electrical signaling.
Which main tissue type of the circulatory system enables diffusion across walls of capillaries?
A. connective B. nervous C. muscle D. vascular E. epithelial
The saliva component that begins the breakdown of carbohydrates is ____
a. mucin b. salivary amylase c. water d. pepsin e. bicarbonate
Plasmodium, the causative agent of malaria, undergoes multiple mitoses before the release of uninucleate daughter cells called (gametocytes/schizonts/coencytes).
Fill in the blank(s) with the appropriate word(s).