Answer:
What are you kids doing these days
Explanation:
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Answer:
Explanation:
The circulatory system, also called the vascular system or cardiovascular system. It consists of three important components such as heart or cardiovascular system, lungs or pulmonary system, vascular system such as arteries, veins and capillaries.
This system is responsible for the transport of gases, blood and nutrients to all the parts of the body. It helps in maintaining the homeostasis of the body by stabilizing the pH, body temperature and fighting the diseases. Also maintains the balance of hormones.
Nitrogen must be converted into nitrates before organisms can use it. If soil lacks nitrogen fixing bacteria, then it has few nitrates for the plants to take in.
The brain and spinal cord; a. They are the main structures when considering the whole of the nervous system.
Answer:
Population Growth Rate
It is calculated by dividing the number of people added to a population in a year (Natural Increase + Net In-Migration) by the population size at the start of the year. If births equal deaths and there is zero net migration, the growth rate will be zero.
Explanation: