<span>The role of the pollen is for the sperm to reach the egg. In the process of transportation, a lot of pollen grains can get lost and therefore there is greater need for it to be more than the ovules, since the eggs do not have to be transported anywhere. </span>
Answer: Epidermal dendritic cells help prevent infections and they also produce pigment for the skin.
Explanation:
source: study.com
Endothermic change
Explanation:
Enthalpy changes are heat changes accompanying physical and chemical changes. There are two types of enthalpy changes: Endothermic change and exothermic change.
In an endothermic change, heat is absorbed from the surround and hence the surrounding becomes colder at the end of the change.
A change that leaves the reaction colder is an endothermic change.
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Exothermic change brainly.com/question/10567109
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The commonly used instruments for basic medical examinations are:
Stethoscope- to hear the sound due to body movements such as breathing sound, heart beat and intestinal movement.
Stopwatch- To record pulse rate, respiration rate etc.
Weighing scale- measures the weight of the person
Thermometer- to measure the temperature of the body
Sphygmomanometer- This device measures the blood pressure of the person.
Medical halogen penlight- To see into eyes, test pupillary light reflex, etc.
Otoscope- Device to see the external ear cavity.
