Answer:
Oxygen burns the food within their bodies and releases energy for various activities and thus it helps animal to be alive. to use it in respiration. Animals need oxygen (O) to survive. In fact, all organisms need oxygen to complete the process to burning glucose for fuel.
Explanation:
To avoid nutrient deficiency one must have a balanced diet. A balanced diet would be the one which includes all the nutrients. It includes
Macronutrients: carbohydrates (the source of energy), proteins and fats.
Micronutrients: vitamins and minerals.
One should include in their diet the following things: Cereals, pulses, fruits vegetables, milk, meat, oil and fats. The amount of nutrient intake varies with age and amount of physical activity done.
Answer:
primary, secondary
Explanation:
primary immunodeficiency diseases are present at birth and usually stem from genetic errors, whereas secondary immunodeficiency diseases are acquired after birth and are due to agents such as infections, irradiation, or steroids
<span>If an animal learns to use a tool in one way and then is presented with a new situation in which it applies the tool, the animal is demonstrating
a. imprinting.
b. operant conditioning.
c. classical conditioning.
d. insight learning.</span>