Clam shells such as the one shown in the photograph build and shape
structures by providing the nutrients necessary to form reef frameworks.
other organisms in the ecosystem depend on these structures. which term
best describes the clam's role in its marine habitat?

a. biotic factor

b. abiotic factor

c. protist

d. producer

Apart of the periodic table is shown. a portion of the sixteenth and seventeenth columns of the periodic table is shown. column 16 reads eight oxygen, 16 sulfur, and 34 selenium. column 17 reads nine flourine, 17 chlorine, and 35 bromine. which of the following elements is less reactive than the others? bromine (br) oxygen (o) selenium (se) sulfur (s)

What element is able to combine with itself and hydrogen to form large molecules ?

Both male and female gametes are created during the process of meiosis. the formation of male gametes is called spermatogenesis. after telophase il of spermatogenesis, there would be are all genetically male gametes created that