Answer:
They test or measure something.
Explanation:
Primary research articles report on research that has been completed. Therefore, a primary research article will review and analyze studies, and will state the research question and hypotheses of the studies presented. A primary research article does not test or measure anything, but will report on studies that do.
The statements that are true of heterogeneous mixtures are: they settle out and the proportions of solute to solvent may vary. The correct answer is option A. 1 and 2. Heterogeneous mixtures are considered mixtures wherein the components are not uniform and still retain their properties. Characteristics of heterogeneous mixtures are: the ratio of solute and solvent is not equal, the substances can be separated physically and they still retain their properties even if mixed with another substance.
There would be increase in oxytocin in one's cerebrospinal fluid in the brain causing a major role in the mother's behavior. Breastfeeding would release the oxytocin from the mother's brain. It allows one's baby to get milk from the breasts causing one's uterus to return back to it's normal size after birth. It also nourishes love, nurture and bond between the mother and child.
B. Habitat Destruction
This is because the wading birds' wetland habitat was destroyed by the housing developers. Since the wetland was drained, their habitat is no longer available to them for nesting or hunting.
When protein enters the stomach, it begins to break down thanks to t<span>iny glands of the stomach which produces juices to help digest food</span>, but only when it enters the small intestine does the protein molecules break down into amino acids.
So the Small Intestine is the answer.
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