<span>The answer is D. Example
of such a relationship is that of a tick and a cow. The tick is the
ectoparasite while the cow is the host.
The tick benefits by sucking blood from the cow while the cow is disadvantaged since it is losing some of its
blood and also the tick is a vector of disease</span>
The strains of bacteria of genus Pseudomonas show range of
effects on Lepidoptera sp. larvae, from harmful or lethal. The Pseudomonas
chlororaphis and Pseudomonas protegens, from strains of sub-clade 1, are proven
to be lethal to the Lepidoptera sp. larvae.
Phosphorus is never found in the atmosphere?
