Home
Class 12
BIOLOGY
Khapra beetle larvae were raised on basa...

Khapra beetle larvae were raised on basal diet to which was added increasing amount of cholesterol. The result is shown in the accompanying graph. It indicates

A

Cholesterol concentration of `2 mu/g` diet is optimumÂ

B

Growth of beetles is inhibited when concentration exceeds `5 mug/g` dietÂ

C

Growth of beetles is directly proportional to cholesterol concentration.Â

D

Cholesterol is an essential dietary equirement of Khapra Beetle.

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Similar Questions

Explore conceptually related problems

Read the given passage and answer the questions. P, Q, R are different colourless solids, while S is a colourless solution. They are in random order) Sodium chloride (NaCl), Calcium Carbonate (CaCO_(3)) , Acetic acid (CH_(3)COOH) and Phenolphthalein indicator. Small amount of the above substances were added in pairs (e.g. P with Q, Q with R etc.) to a small amount of water in a test tube. They give the following results as shown in the observation table. Observation Table: Which of the following reaction is incorrect ?

Read the given passage and answer the questions. P, Q, R are different colourless solids, while S is a colourless solution. They are in random order) Sodium chloride (NaCl), Calcium Carbonate (CaCO_(3)) , Acetic acid (CH_(3)COOH) and Phenolphthalein indicator. Small amount of the above substances were added in pairs (e.g. P with Q, Q with R etc.) to a small amount of water in a test tube. They give the following results as shown in the observation table. Observation Table: The chemicals are:

Read the given passage and answer the questions. P, Q, R are different colourless solids, while S is a colourless solution. They are in random order) Sodium chloride (NaCl), Calcium Carbonate (CaCO_(3)) , Acetic acid (CH_(3)COOH) and Phenolphthalein indicator. Small amount of the above substances were added in pairs (e.g. P with Q, Q with R etc.) to a small amount of water in a test tube. They give the following results as shown in the observation table. Observation Table: The chemicals that can be used as an acid base indicator by a visually impaired student is _____ .

Read the given passage and answer the questions. P, Q, R are different colourless solids, while S is a colourless solution. They are in random order) Sodium chloride (NaCl), Calcium Carbonate (CaCO_(3)) , Acetic acid (CH_(3)COOH) and Phenolphthalein indicator. Small amount of the above substances were added in pairs (e.g. P with Q, Q with R etc.) to a small amount of water in a test tube. They give the following results as shown in the observation table. Observation Table: If acetic acid and hydrochloric acid of same concentration are taken, HCl is a stronger acid because it contains:

For an experiment in Botany, two different plants, plant A and plant B were grown under similar laboratory conditions. Their heights were measured at the end of each week for 3 weeks. The results are shown by the following graph. (a) How high was Plant A after (i) 2 weeks (ii) 3 weeks? (b) How high was Plant B after (i) 2 weeks (ii) 3 weeks? (c) How much did Plant A grow during the 3rd week? (d) How much did Plant B grow from the end of the 2nd week to the end of the 3rd week? (e) During which week did Plant A grow most? (f) During which week did Plant B grow least? (g) Were the two plants of the same height during any week shown here? Specify.

Consider a conducting circular loop placed in a magentic filed as shown. When magnetic field changes with time, magentic flux also changes and emf is induced. e=-(dphi)/(dt) If resistance of loop is R then induced current. i=e/R For Current, charge must have come into motion. Magnetic force cannot make the statinoary charges to move. Actually there is an induced electric field in the conductor caused by changing magnetic flux, which make the change to move intvec(E).dvec(l)=e=-(dphi)/(dt) This induced electric field is non-electrostatic by nature. line integral of vec(E) around a closed path is non-zero The magnetic field within cylindrical region whose cross - section is indicated starts increasing at a constant rate alpha tesla/sec The graph showing the variation.of induced electric field with distance r from the axis of cylinder is :