The mammalian erythrocytes differ from the leucocytes at maturity because the erythrocytes are
discoid and nucleated
discoid and enucleated
amoeboid and nucleated
amoeboid and enucleated
Correct answer is B
No explanation has been provided for this answer.
Examples of organisms that carry out extracellular digestion are?
fungus, loranthus, and housefly
rhizopus, sponges, and earthworm
roundworm, tapeworm. and hydra
rhizopus, housefly, and hydra
Correct answer is D
Rhizopus is a fungus and it uses extracellular digestion.
Houseflies digest their food externally by applying a solvent liquid to food particles to dissolve them, and then sucking up the liquid food.
Hydra also use extracellular digestion and secrete molecules to break down the substrate they will grow.
Animals aestivate when the environment where they live becomes
hot and dry
cold and wet
warm and humid
windy and snowy
Correct answer is A
No explanation has been provided for this answer.
eye
chorion
allantois
gill-slits
Correct answer is D
No explanation has been provided for this answer.
A feature of the caste system of bees and termites is that
the workers are sterile
the kings are bigger than the queens
only the workers perform duties
nuptial flight is performed by all members
Correct answer is A
No explanation has been provided for this answer.