I belive its C
Explatatiom burning something is chemical and melting something is physical.
The appropriate answer is D. Alfalfa. Alfalfa is a legume and these plants play a key role in the nitrogen cycle. These plants house nitrogen fixing bacteria on their roots. The bacteria are housed in tiny round structures of leguminous plant roots. Once the nitrogen is fixed in the soil it can now be used by other plants to make food. These plants include beans peas and peanuts. <span />
Answer:
Change in the vascular system.
Explanation:
High blood pressure occurs when the arteries in the human body system become rigid thereby making the blood pressure rise.
The cause for this situation particularly in older people is the changes in the vascular system or circulatory system.
This is said to be vasoconstriction which lowers the flow of blood in the circulatory system, thereby causing high blood pressure
Hence, since Mr. Ackah is a retired teacher, it is believed that he is an old man susceptible to changes in the vascular system or vasoconstriction.
Answer:
Deer have following specific features that help it to detect the presence of predators like lion in a forest or grassland: Big ears to hear movement of predators very easily. Eyes on the sides of its head which allow it to see in all directions at the same time.
Explanation:
<span>unicellular organisms use locomotion and movement to catch their pray .</span>
