Answer:
B
Explanation:
A water molecule is made up of an oxygen molecule bonded covalently to two hydrogen atoms. Each of the hydrogen atoms shares an electron pair with the oxygen stabilizing their electron configurations to 2 and that of oxygen to 2.8. The oxygen atom will, therefore, have two extra pairs of unbonded electrons that occupy space and repel each other include the bonding pair electrons. Due to these repulsive interactions, all these electron pairs arrange themselves into a tetrahedral geometrical shape in space with the angles between the pairs being 109.5 degrees.
The liver is the...................... gland in the body.
Answer: The liver is the<u> largest</u>
gland in the body.
Answer:
C
Explanation:
The aquatic environment provides many challenges that have to be adapted to. The whale forelimb anatomy changed by natural selection favoring whales that had better forelimbs adapted to swimming. This caused some of the bones of the forelimb to become shorter and thicker to withstand the pressure of the aquatic environment.
Energy or caloric and protein needs are lower on a body weight basis in childhood than during the pre-adolescent toddler or preschool years. The protein requirement of an individual is the lowest level of dietary protein intake that will balance the losses of nitrogen from the body in persons maintaining energy balance at modest levels of physical activity.
D Four haploid cells different from the parent cell
