A researcher observing an ecosystem describes the amount of sunlight, precipitation, and type of soil present. The researcher is most likely describing abiotic factors in a prairie.
A and B are incorrect because the factors described are abiotic, not biotic.
Di is incorrect because abiotic factors listed include soil, which is not likely to be described in an ocean environment.
The correct answer is -
E. double coincidence of wants
1 is D
2 is C
3 is A
4 is B
5 is A
6 is D
7 is B
8 is C
9 is asexual reproduction
10 is sexual reproduction
They allowed scientists to study heredity and further develop it
Answer:
True
Explanation:
Physical contamination are foreign objects such as hair, fingernails, broken glasses , jewelries etc that are mixed with food. Although, it is important for a food handler who realizes that he is sick such as having fever, jaundice,wound while working to report such to his supervisor or manager,who will then take necessary action and to avoid risk of contamination; yet not the only cause of physical food contamination.
Physical contamination does not necessarily have to occur until the food handler is sick. It could be as a result of carelessness or not paying attention enough by the food handler . Physical contamination might not at all times cause injury or illness to the customer, yet such could bring discomfort to a customer who notices foreign objects in his food while eating. To avoid risk of physical food contamination, it is important for food handlers to keep jewelries to a minimum, wash fruits and vegetables thoroughly, wear hear neatly tied back, throw out and replace cracked, chipped, or broken dishware, glassware and equipment amongst others.
