Answer:
Because liquids and solids are denser than gasses.
Explanation:
Solids and liquids are denser than gasses making it easier for things like sound to conduct through them. Being dense contributes to a better conduction because the particles and such within the solid or liquid are closer together which allows for things like sound to travel at a much faster rate because they're so much easier to vibrate.
Answer:
The correct answer is- IgA
Explanation:
There are five types or class of antibodies found in the human body these are IgA, IgM, IgD, IgE, and IgG. Out of these five class IgA antibody is found in an abundant amount in the mother's milk or colostrum.
Infant take this antibody from the mother through breastfeeding which protects the infant from may pathogenic microbes. The immunity in which antibodies are taken from outside is called passive immunity.
Therefore the passive immunity source that is given by the mother to baby through breast milk is called IgA.
Answer:
Lambdoid suture
Explanation:
The parietal bones are two bones, located above the temporal, behind the frontal and in front of the occipital. The occipital is an odd bone of the skull, with important cranial joints and sutures. The lambdoid suture extends through the back of the head. Each parietal bone joins the occipital bone in the lambdoid suture, that is, the lambdoid suture is the joint in the back of the skull that connects the parietal bones with the occipital bone.
The answer is D
Explanation:
I apologise for the late answer, but D would be the best one, as it does not discuss morality or anything differing from person to person. The effect it has on birds however, can be readily studied using the scientific method.