Mechanical tissue is best developed in
What is true about the phosphorus cycle?
$I.$ Rocks are the natural reservoirs of phosphorus
$II.$ Weathering of sedimentary rocks makes phosphate available to the soil
$III.$ Herbivores and carnivores obtain phosphorus from plant directly or indirectly Choose the correct option
Which of the following ecosystem has the highest gross primary productivity
Identify $Z$ in figure
Mangrove vegetation is found in