The sequence of the one-way gaseous exchange mechanism in a fish is
operculum → gills → mouth
gills → operculum → mouth
mouth → operculum → gills
mouth → gills → operculum
The type of asexual reproduction that is common to both Paramecium and protists is
budding
sporulation
fragmentation
fission
In nature, plants and animals are perpetually engaged in mutualism because
they are rivals
all animals rely on food produced by plants
they utilize respiratory wastes of each other
they are neighbours
In an experiment to determine the percentage of humus and water in a soil sample, the following results were obtained:
Weight of the evaporating basin alone = 80.5g
Weight of basin and soil = 101.5g Weight after drying the soil in the oven = 99.0g
Weight of basin and roasted soil
= 95.5g
The percentage of humus in the soil sample is
16.7%
17.6%
26.7%
16.2%
An example of a filter -feeding animal is
shark
butterfly
whale
mosquito
