What is the primary nutrient needed by plants

Primary nutrients are nutrients that are required by plants in larger quantities than other nutrients. The primary nutrients include nitrogen (N), phosphorous (P), and potassium (K)

Explanation:

the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.

satellites are frequently used to make observations of the orbit on earth