Which of the following is a partial root parasite?

1. Sandalwood

2. Mistletoe

3. Orobanche

4. Ganoderma

Which one of the following organisms reproduces sexually only once in its lifetime?

1. Banana plant

2. Mango

3. Tomato

4. Eucalyptus

Lichens are the associations of

1. bacteria and fungus

2. algae and bacterium

3. fungus and algae

4. fungus and virus

Amensalism is an association between two species where

1. one species is harmed and other is benefitted

2. one species is harmed and other is unaffected

3. one species is benefitted and the other is unaffected

4. both the species are harmed.

In 2005, for each of the 14 million people present in a country, 0.028 were born and 0.008 died during the year. Using exponential equation, the number of people present in 2015 is predicted as

1. 25 millions

2. 17 millions

3. 20 millions

4. 18 millions

A protozoan reproduces by binary fission. What will be the number of protozoans in its population after six generations?

1. 128

2. 24

3. 64

4. 32

Which of the following would necessarily decrease the density of a population in a given habitat?

1. Natality> mortality

2. Immigration> emigration

3. Mortality and emigration

4. Natality and immigration

What parameters are used for tiger census in our country's national parks and sanctuaries?

1. Pug marks only

2. Pug marks and fecal pellets

3. Fecal pellets only

4. Actual headcounts

A population has more young individuals compared to older individuals. What would be the status of the population after some years?

1. It will decline

2. It will stabilize

3. It will increase

4. It will first decline and then stabilize

What would be the percent growth or birth rate per individual per hour for the same population mentioned in the previous question (Question 10)?

1. 100