In a given habitat we have 20 plant species and 20 animal species. Should we call this as 'diversity' or 'biodiversity'? Justify your answer.

Consider a closed loop C in a magnetic field (figure shown ). The flux passing through the loop is defined by choosing a surface whose edge coincides with the loop and using the formula phi = B_1. dA_1 + B_2. dA_2 +....... . Now if we choose two different surfaces S_1 and S_2 having C as their edge, would we get the same answer for flux? Justify your answer.

Do different species of plants growing in the same area, show the same rate of transpiration at a particular time? Justify your answer.

Answer the given question : Why is the diversity of plants and animals in the forests declining?

Explain with examples how animals and plants species have evolved defenses to reduce the impact of predation.

The lengths of three segments are given for constructing a triangle. Say whether a triangle with these sides can be drawn or not. Give the reason for your answer : 20 cm, 25 cm, 25 cm

Which are the reasons for endangering the species of plants and animals? How can we save those?

Lichen is usually cited as an example of symbiosis in plants where an algal and a fungal species live together for their mutual benefit. Which of the following will happen if algal and fungal partners are separated from each other? Both will survive and grow normally and independent from each other. both will die. Algal component will survive while the fungal component will die. Fungal component will survive while the algal partner will die. Based on your answer how do you justify this association as symbiosis.

Potato which we eat is an underground part of a plant, however it can not be considered as root. Justify the given statement.

Which species in each of the following pairs is better reducing agent under standard state conditions. E^@ values are, given. Give reasons for your answer :- K_(s) (-2.93 V) or Mg_(s) (-2.36)