18. A study of the endangered saiga antelope (pictured at the beginning of the chapter) recorded the fraction of females in the
population that were fecund in each year between 1993 and 2001
(Milner-Gulland et al. 2003). A graph of the data is as follows:

answer; /// i really don't understand your question/statement.but/lions do fight over territory and breeding rights, sometimes to the death,this is called( i hope this answered your luck

it would lead to upper respiratory infections and pneumonia.

all these collisions do one thing, and that thing is explained in the last option. when dusst, rocks and ice collide, they harden and form giant layers of rocks or hard ice.

d)   to harden materials to form different parts of earth’s layers

hope it ,

bioteacher101