The answer is parasitism. It is the relationship where the Mosquitoes feed on the blood of other animals and humans. which often leaves the host organism with a rash, or a disease may be transmitted to them. Parasitism<span> is a relationship between species, where one organism, the parasite, lives on or in another organism, the host, causing it some harm,</span>
Answer: When a blood cells is place in Hypertonic solution, water will rush out of the cell, the cell will shrinks or crenates. This is because the solute concentration outside the cell is greater than solute concentration inside the cell.
Explanation:
Hypertonic solution is a solution that have greater or higher solute concentration outside the cell compare to the solute concentration inside the cell.
Answer:
Cross bridge in a sarcomere of a fast fiber produce higher amounts of force as compared to a cross bridge in a sarcomere of a slow fiber
Explanation:
When a muscle contracts, a cross bridge is formed between actin and myosin. The sarcomere shortens when a muscle contracts by reforming cross bridge. In general a muscle fiber is of three types – a) slow, b) Fast and c) intermediate.
The sarcomere of fast fiber generates high force but for a short period of time. On the other hand, sarcomere of slow fiber generate lower amounts of force but this force lasts for a longer period of time. Due to this difference, fast fibers are the predominant fibers in the body
The given case is an example of reflex action.
The reflex action is an instant involuntary response to a stimuli, which can cause damage. The reflex action takes place through the processing of message through a reflex arc, this reflex arc lack the involvement of brain and the processing of the stimulus takes place in the spinal cord.
In this case, the sensory receptors detects the stimuli and transfer the message to the relay neuron present in the spinal cord through the sensory neuron. The relay neuron transfer the action message to the effector muscles present at the site of stimulus with the help of motor neurons.
Given below is a block diagram of reflex action.
