Answer:
The correct answer will be option-D.
Explanation:
Fungi forms symbiotic or mutual relationship with higher plants known as mycorrhizae.
These mycorrhizae could be present on the tree parts like stem which form the ectomycorrhizae and some live inside the plant parts like in the roots and known as endo-mycorrhizae.
The fungi provide useful nutrient like they absorb phosphorus from the soil and provide it to the plants and in return plant give shelter to these fungi.
Thus, option-D is the correct answer.
Answer:
A
Explanation:
Living organisms adapt to their moves and positions in response to the environmental changes for their protection or to their advantage. When an entity reacts to the changes in its surroundings, it is referred to as stimulus while the reaction to the stimulus is referred to as a response. Common stimuli are sound, light, air, heat, smell, taste, water and gravity.
Think of burning your finger of fracturing your bone without any pain sensation. It may certainly sound like a superpower or an ideal situation, however, when it comes to the standpoint of survival, it can be disastrous.
It is a characteristic behaviour of living entities to respond to stimuli with the intervention of the Nervous System. It is an organ system ascribed to send signals from the spinal cord and the brain throughout the body and then back from all the body parts to the brain. Neuron acts as the mediator and is the basic signalling unit of the Nervous system.
Pain is the body’s way of letting us know that something is not right. It can prevent further injuries or push us to seek medical attention. Moreover, all of this is possible because humans can respond and react to stimuli due to control and coordination among the various organs and organ systems.
Control and Coordination in simple multicellular organisms take place through only the Nervous system which coordinates activities of our body. It is the control system for all our actions, thinking, and behaviour.
<span>The lowest quantity of energy that the reacting species must possess in order to undergo a specified reaction.</span>
