__________ are proteins, Y-shaped antigen receptors made only by __________ cells. Fill in the blank(s) with the appropriate word(s)
ANSWER: Antibodies; B
Biology & Microbiology
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Competition between species 1 and species 2 is beneficial for species 1 and harmful for species 2
____________________ Indicate whether the statement is true or false.
Biology & Microbiology
No single species concept functions well under all situations
a. true b. false
Biology & Microbiology
Which of the following is NOT a simple fruit?
A. pea B. rice C. pineapple D. peach
Biology & Microbiology
________ are soil dwellers; ________ are mostly marine; and ________ mostly inhabit fresh water
A) Earthworms; leeches; annelids B) Earthworms; leeches; polychaetes C) Earthworms; polychaetes; leeches D) Polychaetes; earthworms; leeches
Biology & Microbiology