Home
Class 12
BIOLOGY
the population of an insect species show...

the population of an insect species shows and explosive increase in number during rainy season followed by its disappearance at the end of the season. what does the show?

A

a population of its predators increases enormously.

B

S-shaped or sigmoid growth of this insect.

C

the food plants mature and die at the end of the rainy season.

D

its population growth curve is of J-type

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • Principle of Inheritance and Variations

    JMD PUBLICATION|Exercise EXERCISE|30 Videos
  • REPRODUCTION IN ORGANISMS

    JMD PUBLICATION|Exercise EXERCISE |76 Videos

Similar Questions

Explore conceptually related problems

The population of an insect species shows an explosive increase in numbers during rainy season followed by dissapperance at the end of the season. What does this show?

The population of a village increases continuously at the rate proportional to the number of its inhabitants present at any time. If the population of the village was 20, 000 in 1999 and 25000 in the year 2004, what will be the population of the village in 2009?

Hydrolysis of methyl acetate in aqueous solution has been studied by titrating the liberated acetic acid against sodium hydroxide. The concentration of the ester at different times is given below. Show that it follows a pseudo first order reaction, as the concentration of water remains nearly constant (55 mol L^(-1)), during the course of the reaction. What is the value of k in this equation? Rate = k [CH_3C00CH_3][H_20]

A plant species shows seceral morphological variations in response to altitudinal gradient. When grown under similar conditions of growth, the morphological variations disappear and all the variants have common morphology. What are these variants called?

Which one of the following plants shows a very close relationship with a species of moth, where none of the two can complete its life cycle without the other?

A piece of uniform string hangs vertically so that its free end just touches horizontal surface of a table. The upper end of the strig is now released. Show that at any instant during the falling of string, the total force on the surface is three times the weight of that part of string lying on the surface.

The following graph shows the species area relationship. Answer the following questions as directed. Write the situations as discovered by the ecologists when the value of 'Z' (slope of the line) lies between 0.1 and 0.2 What does 'Z' stand for?

The following graph shows the species area relationship. Answer the following questions as directed. Write the situations as discovered by the ecologists when the value of 'Z' (slope of the line) lies between 0.6 and 1.2 What does 'Z' stand for?

A group of 360 people were asked to vote for their favorite season from the three seasons rainy, winter and summer. (i) Which season got the most votes? (ii) Find the central angle for each sector. (iii) Draw a pie chart to show this information.

Figure 14.26 (a) shows a spring of force constant k clamped rigidly at one end and a mass m attached to its free end. A force F applied at the free end stretches the spring. Figure 14.26 (b) shows the same spring with both endsfree and attached to a mass m at either end. Each end of the spring in Fig. 14.26(b) is stretched by the same force F If the mass in Fig. (a) and the two masses in Fig. (b) are released, what is the period of oscillation in each case ?