Explanation: When both parents are carriers for a recessive disorder, each child has a 1 in 4 (25 percent) chance of inheriting the two changed gene copies. A child who inherits two changed gene copies will be “affected,” meaning the child has the disorder.
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Answer:
7.8 moles are needed.
Explanation:
Given data:
Mass of oxygen produced = 125 g
Number of moles of mercury oxide needed = ?
Solution:
Chemical equation;
2HgO → 2Hg + O₂
Number of moles of oxygen:
Number of moles = mass/ molar mass
Number of moles = 125 g/ 32 g/mol
Number of moles = 3.9 mol
Now we will compare the moles of oxygen with mercury oxide.
O₂ : HgO
1 : 2
3.9 : 2×3.9 = 7.8 mol
Adaptation because organisms adapt to avoid extinction.
The connecting link between the endocrine and nervous system is a brain structure called hypothalamus. The hypothalamus is part of the limbic system and is located in the certain of the brain, close to the brain stem. It is a brain structure comprised of many different nuclei and is responsible for regulating many metabolic functions and processes of the autonomic nervous system.
The hypothalamus controls the pituitary glands and the release of hormones from the endocrine system. It is responsible for the regulation of basic needs such as hunger, sleep, thirst, and stress and emotional responses.