The diagram shows a model of a nephron and its associated blood vessels.
This model has been criticised for being a poor representation of a nephron. Which of the following statements explain(s) this?
1. The rubber tubing at B is not split up into numerous branches like the capillary network of the glomerulus.
2. The rubber tubing at B should be continuous and not contain small pores.
3. The stem of the thistle funnel (E) is not coiled to represent the convoluted tubules of the nephron.
A 1 only
B 1 and 3 only
C 2 and 3 only
D 1, 2 and 3
I am not able to understand this question......it Is really confusing.
Refer to the given figure and select the incorrect statement(s).
(i) The part labelled P is found in plant cell only.
(ii) The part labelled Q is cell wall, which provides rigidity to a plant cell.
(iii) The part labelled R is the controlling centre.
(iv) The part labelled R gets its shape from part labelled P.
A (iv) only
B (i) and (iv) only
C (ii) and (iii) only
D (iii) only
vacuoles are also present in animal cells in small size can youexplain your answer
Fill in the blanks with the most appropriate option.
‘W’ is very reactive metal, reacts vigorously with oxygen and water therefore, stored in (1).
‘X’ is non-metal, soft and dull and forms (2)oxides with oxygen.
‘Y’ is very reactive (3), catches fire if exposed to air, therefore, stored in water.
‘Z’ does not react with dilute hydrochloric acid even on heating but it reacts with sulphuric acid. When it is exposed to moist air for long, it acquires a dull (4)coating.
A 1-Water, 2-basic, 3-metal, 4-reddish brown
B 1-Kerosene, 2-acidic, 3-metal, 4-reddish brown
C 1-Kerosene, 2-acidic, 3-non-metal, 4-green
D 1-Water, 2-basic, 3-non-metal, 4-green
my answer is b can you explain me how it is c
Study the given passage.
X, Y and Z are different parts of the brain. X controls muscular activities, Y controls learning ability and memory and Z controls activities such as breathing, heartbeat and blood pressure. Identify X, Y and Z and select the correct statement regarding them.
AX is the upper part of brain that also controls our sense organs.
BY is located below X towards back of the brain.
CX is also called brain stem and it works even when we are asleep.
DZ connects the brain to spinal cord whereas Y is the largest part of the brain.
Ans 1: (Master Answer)
X is cerebellum. It is located at the back of the brain, below the cerebrum. But it's a very important part of the brain. It controls balance, movement, and coordination. Y is cerebrum, the large, outer part of the brain,controls reading, thinking, learning, speech, emotions and planned muscle movements like walking. It also controls vision, hearing and other senses. Z is medulla oblongata is part of the brain stem that controls most of these involuntary actions (blood pressure, breathing, heartbeat, etc).
Name of some fabrics can be obtained by using the letters given in the following box.
DNone of these
i got 1 fibre what is the another fibre
Refer to the given figure and select the correct option regarding P, Q, R and S.
AP is the plant part that later produces seeds and in some plants like cabbage and broccoli it gets modified to store food.
BQ transports water and minerals from soil to other plant parts and in some plants like turnip and carrot it gets modified to store food.
CLettuce and spinach have edible R and in some plants like pea and grapevine it gets modified into thread like structures that help in climbing up.
DS is the plant part that helps to keep the plant upright and is modified into thorns in some plants for protection.
In the given food web, how many animals are
(A) only plant eaters?
(B) only animal-eaters?