 Q. Which of the following gland secretes growth hormone? (a) Pancreas
(b) Adrenal
(c) Pituitary (d) Parathyroid |
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Q. In which of the following multiple
fission occur?
(a) Amoeba (b) Leishmania (c) both (d) Plasmodium (a) 3TTAT |
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Q. Which of the following hormone
promoe the growth in plants?
(a) Auxin
(b) Gibberellins
(c) Cytokinin
(d) All of these
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Q. What is the function of sperm
tail?
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Q. Origin of Homosapiens occured in
….. .
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Q. Write down various tools which are
used to study human evolution.
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Q. Flow of energy is unidirectional
in ecosystem". Explain"
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Q. What happens at synapse between
two neurons?
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Q. Describe the importance of
variation.
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Q. What is excretion? Describe the
structure of nephron with the help of well labelled diagram.
Or How living things gets their food. |
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Q. Cross pollination is achieved by which of the following agents?
(a) Wind
(b) Water (c) Animals (d) All of these |
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QWhich of the following gland secrete
both hormones and enzymes?
(a) Thyroid (b) Parathyroid (c) Adrenal (d) Pancreas |
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Q. What are the functions of
Gibberellin?
|
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Q………layer shields the surface of earth
from ultraviolet radiation from the sun.
|
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Q. Why does menstruation occur?
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Q. Describe budding in Hydra.
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Q. What are the functions of
forebrain?
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Q. How do Mendel's experiments show
that traits are inherited independently?
|
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Q.Draw a well labelled diagram of
human digestive system.
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(b) Describe the process of digestion
of fat.
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What is transpiration? How does it
take place? What is its role? 6"
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Q. Which of the following come at
third trophic level?
(a) Primary consumers (c) Tertiary consumers (b) Secondary consumers (d) None of these |
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Q. Placenta is embedded in :
(A) Oviduct (b) Vagina (c) Cervix (d) Uterus |
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Q. Spinal cord is protected by: (a) Cranium (c) Ribs (b) Vertebral column (d) None of these |
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Q. The higher energy UV radiations
split apart some molecular oxygen into …… atom.
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Q. What are the functions of
cytokinins?
|
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Q. What is pollination? Write about
self and cross pollination?
|
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Q. In which organism fragmentation
occur? Write about its process.
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Q. Why is the use of iodised salt advisable?
Write the functions of the bormone secreted by thyroid gland?
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Q. How is the sex of the child
determined in human beings?
|
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Q, (a) Draw a well labelled diagram
of cross section of leaf.
(b) How are the lungs designed in human beings to maximize the area for exchange of gases? Q.Describe the working of human heart. |
|
Q. Which of the following is not a
natural Ecosystem?
(a) Forest
(b) Pond
(c) Lake
(d) Crop fields
|
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Q. Which of the following is not the
part of hind brain?
(a) Pons (b) Medulla (c) Cerebellum (d) None |
|
Q. What are the function of Abscisic
acid?
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Q. Write about the changes occur after fertilization in plants. |
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Q. Write about the process of fission
in various organisms.
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Q. What is peripheral nervous system?
Write its various parts.
|
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Q. (a) Draw a labelled diagram of
schematic sectional view of Human heart.
(b) Differentiate between Artery and Vein. Q.Describe various pathways of glucose breakdown in organisms. |
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