Overview of Animals Practice Problems
_______are the simplest of animals whereas the ____are the most complex among animal kingdom.
Organisms that cannot prepare organic food and depend on plants directly or indirectly for food are called heterotrophs. What is the important function of heterotrophs like fungi in the ecosystem?
The fossils of various organisms found in Ediacaran Hills in Southern Australia are made of different body plans. One of them is the Spriggina which displayed the first _________ type of body plan.
The term "tube within a tube" is used for roundworms and annelids because:
The similarity of forearm bone structures among humans and cats is an example of:
The origin of bilaterian animals is one of the significant events of the
Which of the following combinations of a phylum and its description is incorrect?
It is a group of organisms that is composed of a common ancestor along with all its lineal descendants.
What significant evolutionary event happened during the Cambrian explosion?
_____ body symmetry is to sponges as _____ body symmetry is to animals.
Which of the following is true about gastrulation?