Passive transport uses no energy, so an example of that would be diffusion. So your answer would be D, diffusion.
Answer: Option B.
Help control weeds and insect pests.
Explanation:
Insect are the largest group of organisms on Earth. They belong to the phylum arthropoda and class insecta. They have hard exoskeleton, antenna, they have three pairs of legs and their body is divided into head, thorax and abdomen.
Insects are biological resources in that they help control weeds and insects pest.
The insects are use as weed control in that they feed on the weeds i.e they use the weeds as food there by absorbing the nutrients for weeds development, which lead to their inability to survival. Some canivorous insects feed on insects pest i.e use they as food, thereby reducing their harmful effects in the ecosystem.
Lymph vessels are devoted to the preclusion of the lip from the lymph capillaries which are mainly concerned with absorption of interstitial fluid from the tissues these vessels drain into the right and left subclavian vans respectively.
Like bacteria, fungi play an essential role in ecosystems because they are decomposers and participate in the cycling of nutrients by breaking down organic and inorganic materials to simple molecules. Fungi often interact with other organisms, forming beneficial or mutualistic associations.
