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. The spleen filters blood removes damaged red blood cells Coenocytic fungi have many nuclei in one extensive cytoplasm segmentation allowed the development of specialized appendages Animals that have nerve, always have brain Mollusks have closed circulatory system. You could kill a starfish by cutting off its arms Reptile, never have gill slits. The heart of an adult amphibian has three chamber 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 nucle 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.
17.False : The coelom of most deuterostomes develop from outpocketings of the mesoderm of the gut.
18.True
19.False.Fishes rely on swim bladder for buoyancy.
20.True
21.False.Fruits are expanded ovary.
22.True
23.True
24.True
25.False.Animals that have nerves do not always have brain.E.g hydra, jelly fish have nerves but no brain.
26.False.Molluscs have open circulatory system.
27.False.Starfish undergoes regeneration.
28.True
29.True
30.True
31.False.Sieve tube cells are found in phloem.
32.False.Tracheids are a type of cell in xylem.
33.True
34.False.Sponges have two tissue layers.
35.False.Higher plants have a dominant diploid phase.
36.True
37.True
38.True
39.True
40.False.Leaves are broad and thin to maximise their absortion of light and CO2.
41.True
42.False.Book lungs are found in arachinids while external feathery gills are found in molluscs.
43.False.Saprobes decompose dead plant matter.
44.True
45.True
46.False.Psychrophiles live in extremely cold conditions ranging from - 20 oC to +10oC
47.True
48.True
49.True
50.True
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