What is the preliminary treatment in a municipal wastewater treatment plant? Preliminary treatment includes wastewater screening and . There is change in wastewater quality after the treatment.

Name the plastid and pigment likely to be found in the cells of (a) petals of sunflower (b) ripe tomato.

The phylogenetic tree illustrates the relationship between humans and our closest living relatives. the tree was based on biochemical comparisons, including dna and amino acid sequences. according to the biomolecular data, we could infer that a) the four organisms do not have a common ancestor. b) humans are more closely related to chimps than any other apes. c) chimps are more closely related to gorillas than they are to humans. eliminate d) there is no evidence if any relationship between the four branches on the tree.

Isolated volcanic peaks on the ocean floor are