Which of the following nutrient-deficiency symptoms is correctly matched with the deficient nutrient?poor growth: nitrogenmottling of older leaves, with drying of leaf edges; calciumwilting; boronreduced internode length; zincgeneral chlorosis in young leaves; carbon

poor growth: nitrogenmottling of older leaves,

Explanation:.

If plants fail to thrive, despite adequate soil preparation, watering and mulching, it may be a sign of a nutrient deficiency. Fruit and vegetables are particularly vulnerable, as are containerised plants and those growing in very acid or alkaline soils. Yellow or reddish coloured leaves, stunted growth and poor flowering are all common symptoms of nitrogen, magnesium or potassium deficiency.

the most logical answer would be a

white blood cells or wbc s are mainly 2 types-

1.agranulocytes

2.granulocytes

the monocytes or macrophages of agranulocytes , dendritic cells which are accessory leucocytes, and b cells which is one type of lymphocytes   identify the antigens present on the pathogen's surface. these three cells are called antigen presenting cells(apc) which are phagocytes and destroy the antigens by secreting antitoxins. besides this leukocyte is always plays vital role in the immunity of the body.