I Choose the correct answer (6 x 1 = 6)
1. ______ shows both living and nonliving characteristics.
a) Protozoa b) Virus
c) Bacteria d) Fungi
2. Plants that prevent soil erosion are
a) algae b) fungi
c) bryophytes d) pteridophytes
3. The process of air passing in and out the lungs is called ______________.
a) inhalation b) exhalation
c) breathing d) None of these
4. External ear (pinna )is supported by
(a) bone (b) cartilage
(c) tendon (d) capsule
5. Many adolescent boys and girls get pimples on face, due to the secretions of
_________ gland.
a) sweat b) sebaceous
c) sweat and sebaceous d) None of these
6. ___________ are the chemical substances, secreted by endocrine glands.
a) Hormones b) Enzymes
c) Proteins d) Fatty acids
II Answer any 7 of the following (7 x 2 = 14)
7. Write the four types of bacteria, based on their shape.
8. State true or false. If false, correct the statement.
a) Dicotyledons have well developed characters than the gymnosperms.
b) Mosses are the well developed plant in bryophytes.
9. State different types of tissues.
Answers
Answer:
1)virus
when virus are not in contact with living organisms they act as non living
while in contact they act as living
2) Bryophyte
3) breathing
4) cartilage
5)sebaceous
6)Hormones
7)cocci-sperical
bacillus-rod shape
vibrio-comma shape
sprillium -sprial shape
8)a)true b)true
9)There are 4 types of tissue
--->Epithelial tissue
--->connective tissue
--->Muscular tissue
--->neural tissue
Answer:
1. Virus
2. Fungi
3. breathing
4. Cartilage
5. sebaceous
6. Hormones
7. Bacteria are described according to the shape of their cells. They are: 1. Bacilli – Rod shaped bacteria. 2. Spirilla – Spiral shaped bacteria. 3. Cocci – Spherical or ball shaped bacteria. 4. Vibrio – Comma shaped bacteria.
8.a .Dicotyledons have well developed characters than the monocotyledons. Answer: False.
b. True
9.There are 4 basic types of tissue: connective tissue, epithelial tissue, muscle tissue, and nervous tissue.