The coelom of most deuterostomes develops from outpocketings of the endoderm of the gut. Torsion is a unique characteristic of all mollusks. Fishes may rely on their lungs for buoyancy. Sessile animals are often filter feeders. Fruits are expanded anthers. The spleen filters blood and removes damaged red blood cells. Coenocytic fungi have many nuclei in one extensive cytoplasm. Segmentation allowed the development of specialized appendages. Animals that have nerves always have brains. Mollusks have closed circulatory systems. You could kill a starfish by cutting off its arms. Reptiles never have gill slits. The heart of an adult amphibian has three chambers. Phloem transports organic nutrients from leaves to roots. Sieve tube members are found in xylem. Tracheids are a type of cell in phloem. Xylem transports water from roots to leaves. Sponges have three tissue layers. Higher plants have a minute diploid phase. Many fungi depend on plants for mineral absorption. If lichen were sprayed with a chemical that blocked photosynthesis, it would probably die. The insects include more species than any other group. Poikilotherms are unable to produce body heat. Leaves are broad and thin to minimize their absorption of oxygen. Water can hold more oxygen than air can. Book lungs are found in crustaceans and mollusks, while external feathery gills are found in arachinids. Saprobes parasitize plants. In coelomates, but not in pseudocoelomates, a peritoneum completely lines the coelomic cavity Trypanosomes possess a kinetoplast (a mass of mitochondrial DNA close to the nucleus) Psychrophiles live in extremely hot conditions Above 100 degree C Spirogyra is a plant protist Shigella spp is a bacteria that causes dysentery Anthrax is a bacteria that can be used in terrorism. Plants have internal clocks. Solution 17. True 18. true 19. false 20. True 21. false 22. True 23. True 24. True 25.false (platyhelminthes) 26.True 27. false 28. True 29.false (only in croodile, birs and mammals) 30.True 31.false 32. false 33. True 34. false diploblastic 35. false 36 True 37 true 38 True 39 True 40 True 41 True 42 True 43 false 44 True 45 True 46 false 47 True 48 True 49. True 50. True (hormone).

1. The coelom of most deuterostomes develops from outpocketings of the endoderm of the gut.
Torsion is a unique characteristic of all mollusks. Fishes may rely on their lungs for buoyancy.
Sessile animals are often filter feeders. Fruits are expanded anthers. The spleen filters blood and
removes damaged red blood cells. Coenocytic fungi have many nuclei in one extensive
cytoplasm. Segmentation allowed the development of specialized appendages. Animals that
have nerves always have brains. Mollusks have closed circulatory systems. You could kill a
starfish by cutting off its arms. Reptiles never have gill slits. The heart of an adult amphibian
has three chambers. Phloem transports organic nutrients from leaves to roots. Sieve tube
members are found in xylem. Tracheids are a type of cell in phloem. Xylem transports water
from roots to leaves. Sponges have three tissue layers. Higher plants have a minute diploid
phase. Many fungi depend on plants for mineral absorption. If lichen were sprayed with a
chemical that blocked photosynthesis, it would probably die. The insects include more species
than any other group. Poikilotherms are unable to produce body heat. Leaves are broad and thin
to minimize their absorption of oxygen. Water can hold more oxygen than air can. Book lungs
are found in crustaceans and mollusks, while external feathery gills are found in arachinids.
Saprobes parasitize plants. In coelomates, but not in pseudocoelomates, a peritoneum
completely lines the coelomic cavity Trypanosomes possess a kinetoplast (a mass of
mitochondrial DNA close to the nucleus) Psychrophiles live in extremely hot conditions Above
100 degree C Spirogyra is a plant protist Shigella spp is a bacteria that causes dysentery
Anthrax is a bacteria that can be used in terrorism. Plants have internal clocks.
Solution
17. True
18. true
19. false
20. True
21. false
22. True
23. True
24. True
25.false (platyhelminthes)
26.True
27. false
28. True
29.false (only in croodile, birs and mammals)

2. 30.True
31.false
32. false
33. True
34. false diploblastic
35. false
36 True
37 true
38 True
39 True
40 True
41 True
42 True
43 false
44 True
45 True
46 false
47 True
48 True
49. True
50. True (hormone)