Answer:
The last option is the correct answer
Explanation:
Answer:
The body needs calcium to maintain strong bones and to carry out many important functions. It's important for keeping strong bones and teeth.
Explanation:
Place hands behind your head, as shown, with elbows out to the side. You can also cross your arms over your body or leave them at your sides, whichever is most comfortable.
Bend your body to one side, bending at the waist. Keep your head facing forward.
Return to starting position. Repeat on the other side.
Answer:
Answer below.
Explanation:
To know if a person is overweight we calculate their Body Mass Index which is their weight in kilogrammes divided by the square of their height in meters.
Being overweight is a precursor to obesity. Living a sedentary lifestyle while being overweight is bad for your health. It increases the levels of bad fat in the body and this can lead to insulin resistance by the body cells causing sugar to build up in the blood and ultimately leading to diabetes disease.
Low level of physical activity while overweight is also bad for your joints as it puts too much weight on them and might cause arthritis.
Increased levels of unhealthy fats in the body can cause them to block the small vessels circulating blood and this can lead to stroke and hypertension.
To prevent these complications, people should make efforts to control their weight by applying various lifestyle changes. Such changes as regular exercises, brisk walking , using the stairs, cutting down on high calorie foods and eating healthy helps bring weight to normal physiological levels.
Answer:
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Explanation:
"The Y chromosome is a puny bit of DNA that has only a few genes. And the genes it does have mostly deal with being male. So the only traits that are passed from father to son through the Y are those that turn an embryo into a male and those that make a man fertile once he reaches puberty."
"Girls have two X chromosomes and boys have an X and a Y. Because girls have two X chromosomes, this means moms can only pass on an X to their kids. Boys have an X and a Y and can pass on either the X or the Y. So, it is actually your dad who determined if you were a boy or a girl!"
"This process is called meiosis. These gametes contain a unique copy of half the genes of the parent source. When fertilization occurs, an egg fuses and combines genetic material with a sperm to create a full set of chromosomal DNA, with 23 pairs of chromosomes"
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So I hope that kinda helps you answer those questions with those definitions. ↑
If not Ile try to fill in blanks, at least some↓↓
Passed through a ________ sperm _______ cell. For females DNA is passed through an _____ egg ______ cell. Traits are the qualities about an organism found in their chromosomal DNA _______.
