 |
1 | |
At least 97% of all species of animals are invertebrates. |
| | A) | True |
| | B) | False |
|
|
2 | |
Most sponges are carnivores that suck prey in through specialized pores. |
| | A) | True |
| | B) | False |
|
|
3 | |
Feeding currents in sponges are produced by flagellated cells called choanocytes. |
| | A) | True |
| | B) | False |
|
|
4 | |
Food is trapped in most sponges by mineralized structures called spicules. |
| | A) | True |
| | B) | False |
|
|
5 | |
Support material in sponges is always made of calcium carbonate. |
| | A) | True |
| | B) | False |
|
|
6 | |
Cnidarians capture prey mainly by entangling and wrapping them with their tentacles. |
| | A) | True |
| | B) | False |
|
|
7 | |
Radial symmetry, such as seen in Cnidaria, occurs when similar parts of a body are arranged and repeated around a central axis. |
| | A) | True |
| | B) | False |
|
|
8 | |
Mature marine hydrozoan Cnidaria are mainly colonies of polyps that produce medusae. |
| | A) | True |
| | B) | False |
|
|
9 | |
The Portugese man-of-war is a type of scyphozoan cnidarian with a gas float. |
| | A) | True |
| | B) | False |
|
|
10 | |
Scyphozoan cnidarians may be found in a polyp form, but the medusa stage generally dominates. |
| | A) | True |
| | B) | False |
|
|
11 | |
In anthozoan cnidarians, the polyp form has complex internal septa to aid digestion. |
| | A) | True |
| | B) | False |
|
|
12 | |
Corals and gorgonians are types of anthozoan cnidarians. |
| | A) | True |
| | B) | False |
|
|
13 | |
Ctenophores are similar to scyphozoan cnidarians in that they both have which feature? |
| | A) | gelatinous body |
| | B) | sting their prey |
| | C) | rows of long cilia |
| | D) | skeleton of calcium carbonate |
|
|
14 | |
In bilaterally symmetric animals, the term "bilateral" indicates that there are two ways of cutting the body to get two identical halves. |
| | A) | True |
| | B) | False |
|
|
15 | |
Platyhelminths have a centralized brain, while cnidarians do not. |
| | A) | True |
| | B) | False |
|
|
16 | |
Platyhelminths have a complete digestive tract with mouth and anus, while cnidarians do not. |
| | A) | True |
| | B) | False |
|
|
17 | |
Unlike other flatworms, tapeworms have which feature? |
| | A) | a long proboscis |
| | B) | no digestive tract |
| | C) | bright colors |
| | D) | a gut with septa |
|
|
18 | |
Nemertean worms entangle prey with a proboscis everted from a cavity above the mouth. |
| | A) | True |
| | B) | False |
|
|
19 | |
Marine nematode worms are hardly ever seen because they are relatively few in number. |
| | A) | True |
| | B) | False |
|
|
20 | |
Annelid worms have a true coelom for a body cavity, but nematode, nemertean, and platyhelminth worms do not. |
| | A) | True |
| | B) | False |
|
|
21 | |
Segments of polychaete worms usually have fleshy extensions called parapodia that often have stiff bristles called setae. |
| | A) | True |
| | B) | False |
|
|
22 | |
Polychaete worms, like earthworms on land, are all deposit feeders. |
| | A) | True |
| | B) | False |
|
|
23 | |
All known animal phyla were discovered by biologists by the early 20th century. |
| | A) | True |
| | B) | False |
|
|
24 | |
Pogonophoran worms differ from most other worms in that their digestive tracts are filled with bacteria. |
| | A) | True |
| | B) | False |
|
|
25 | |
Most molluscs have a radula, a ribbon-like structure that carries rows of small teeth. |
| | A) | True |
| | B) | False |
|
|
26 | |
All molluscs have an external shell made of calcium carbonate. |
| | A) | True |
| | B) | False |
|
|
27 | |
Some gastropods use their radulas to scrape algae from rocks, and some are carnivores that may use the radula to rasp a hole in a prey's shell. |
| | A) | True |
| | B) | False |
|
|
28 | |
Brachiopods feed by which means? |
| | A) | scraping algae from rocks |
| | B) | catching prey |
| | C) | filter feeding |
| | D) | deposit feeding |
|
|
29 | |
Most bivalves use their radular teeth like a filter to trap small particles in the water. |
| | A) | True |
| | B) | False |
|
|
30 | |
Cephalopods use a structure called a funnel to squirt out water from their mantle cavities in order to create a kind of jet propulsion. |
| | A) | True |
| | B) | False |
|
|
31 | |
Squids and cuttlefish have internal shells. |
| | A) | True |
| | B) | False |
|
|
32 | |
Most chitons (Polyplacophora) use their radulas to scrape algae off shoreline rocks. |
| | A) | True |
| | B) | False |
|
|
33 | |
Molluscs and annelids produce similar planktonic larvae called trochophores. |
| | A) | True |
| | B) | False |
|
|
34 | |
Cephalopods are considered to have the most complex brain outside of the vertebrates, capable of advanced learning. |
| | A) | True |
| | B) | False |
|
|
35 | |
Arthropods must discard (molt) their chitinous exoskeletons in order to grow. |
| | A) | True |
| | B) | False |
|
|
36 | |
Maxillipeds serve in what process? |
| | A) | mating |
| | B) | feeding |
| | C) | locomotion |
| | D) | sensing currents |
|
|
37 | |
Copepod crustaceans typically use their antennae to swim in the plankton. |
| | A) | True |
| | B) | False |
|
|
38 | |
Barnacles use their antennae to filter particles out of the water. |
| | A) | True |
| | B) | False |
|
|
39 | |
Decapods generally have 5 pairs of swimming legs on the cephalothorax. |
| | A) | True |
| | B) | False |
|
|
40 | |
Hermit crabs have a long, soft abdomen, while true crabs have a small abdomen tucked under the cephalothorax. |
| | A) | True |
| | B) | False |
|
|
41 | |
Most asteroidean echinoderms are carnivores, while most ophiuroideans eat particulate matter and small organisms off the bottom. |
| | A) | True |
| | B) | False |
|
|
42 | |
Sea urchins (echinoidean Echinodermata) feed with an elaborate jaw and muscle device called Aristotle's lantern. |
| | A) | True |
| | B) | False |
|
|
43 | |
Sea cucumbers (holothuroidean Echinodermata) are carnivores, using modified tentacular tube feet to grasp animal prey. |
| | A) | True |
| | B) | False |
|
|
44 | |
Echinoderms have a separate brain for each portion of the radial body. |
| | A) | True |
| | B) | False |
|
|
45 | |
Echinoderms, hemichordates and chordates (which include humans) are all thought to be closely related because of common features in early embryonic development. |
| | A) | True |
| | B) | False |
|
|
46 | |
Sea squirts lose their notochord as adults. |
| | A) | True |
| | B) | False |
|
|
47 | |
Benthic sea squirts (ascidiacean Urochordata) and planktonic salps (thaliacean Urochordata) both filter-feed with an incurrent and excurrent siphon. |
| | A) | True |
| | B) | False |
|
|
48 | |
A lancelet, like other chordates, has which feature? |
| | A) | a pair of large eyes |
| | B) | a water-vascular system |
| | C) | a large proboscis |
| | D) | a dorsal nerve cord |
|
|
49 | |
The following animals are largely carnivores: |
| | A) | Chaetognatha |
| | B) | Bryozoa |
| | C) | Brachiopoda |
| | D) | Sipunculida |
|
|
50 | |
Echinoderms are characterized by |
| | A) | usually having a heptaradial symmetry. |
| | B) | having an exoskeleton similar to that of the Arthropoda. |
| | C) | often moving by use of hundreds of fluid-powered tube feet. |
| | D) | all of the above. |
| | E) | both b and c. |
|
|
51 | |
Some of the most common and widespread marine animals are |
| | A) | insects. |
| | B) | copepods. |
| | C) | loriciferans. |
| | D) | brachiopods |
|