Plants on Earth provide food, some even provide shelter to some animals, and plants such as trees provide oxygen to the environment.
Answer: Hydrogen bonds are created between the base pairs in DNA. Adenine pairs with thymine and cytosine pairs with guanine. Adenine and thymine create 2 hydrogen bonds while cytosine and guanine create 3. These bonds are fairly weak so that they can be broken when DNA is replicated (by an enzyme called helicase which unwinds DNA). However despite them being weak they do stabilize DNA's double helix structure as well.
Answer:
Nutritionists and doctors do not recommend energy restrictions below 1200 Calories for women and 1500 Calories for men.
Explanation:
Calorie can be described as the measure of energy present in an organisms food source.
Nutritionists and doctors recommend that in order to maintain the weight, a woman should consume approximately 2000 calories a day. For men, the amount of calories to maintain weight should be 2500 calories. However, the minimum amount of calories that a women should take is 1200 calories and for men the minimum calories should be 1500 calories.
Answer:
Specifically, meiosis creates new combinations of genetic material in each of the four daughter cells. These new combinations result from the exchange of DNA between paired chromosomes. Such exchange means that the gametes produced through meiosis exhibit an amazing range of genetic variation.
Explanation:
Answer:
contact inhibited.
Explanation:
The uncontrolled division of cell growth leads to the formation of cancer cells. These cells divide at an extremely high rate and requires least nutrition for its growth.
Cancer cells has lost the ability of contact inhibition. They detached from their neighbor cells and can spread to the tumors at other places in the body.
Thus, the correct answer is option (a).