Other Biology Answers

Which of the following best describes the events that take place when an enzyme catalyzes a chemical reaction?

which of the following does not belong to the others?
A Animalia
B Fungi
C Helminths
D Plantae
E Protists
it says the answer is A but i dont understand why

The invagination of ectoderm at the anterior of the gut tube during development results in the formation of ________________________ which in the case of arthropods means that the lining of this portion of the gut is lost at each molt.

The sessile adult nature of the sea squirts does not prevent dispersion of subsequent generations since these animals have free swimming ______________ larvae in their life cycle.

A rather dramatic form of autotomy (the casting off of body parts) is the phenomenon of ___________________________ that is typical of many species of Holothuroidea.

Although presumably homologous with the vertebrate thyroid gland, the endostyle of the Ascidiacea produces ____________________ instead of thyroxine.

Unlike that of most other members of the bilateria, the nervous system of the echinoderms is characterized by very little ___________.

_______________________________ is a mode of food acquisition exhibited by many annelids that often involves the deposition of castings of indigestible materials.

Among the Crinoidea the pinnate, multi-armed morphology of both sessile and motile forms is a reflection of the reliance by this group on ______________ as the primary mode of nutrition.

The reduction of the coelomic cavity in the arms of ophiuroids relative to the condition in asteroid echinoderms is primarily associated with a substantial difference in the mode of _______________________________ of ophiuroids relative to asteroids.