In the animal subkingdom ________, the animals lack symmetry and possess neither tissues nor organs.
Fill in the blank(s) with the appropriate word(s).
Parazoa
Biology & Microbiology
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Territorial behavior includes some form of advertisement, threat, and combat
Indicate whether the statement is true or false
Biology & Microbiology
In meiosis chromosomes go through _________ consecutive cell divisions that end with the formation of _________ haploid nuclei
A) two, four B) two, two C) two, eight D) two, six
Biology & Microbiology
Why is the study of biology central to the understanding and solving of the world's great environmental problems?
What will be an ideal response?
Biology & Microbiology
Type I Helper T cells are involved in
A. innate immunity B. humoral immunity C. cell mediated immunity D. chemical nonspecific
Biology & Microbiology