D. The basic unit of structure and function in all living things.
They can distinguish whether the entity is living or non living by checking whether they have all the seven characteristics of living things.
These 7 characteristics include:
Movement
Respiration
Sensitivity
Growth
Reproduction
Excretion
Nutrition.
If the entity does show all these seven characteristics, it should be a living organism.
In the past, scientists by using these 7 characteristics, they sorted living things in 5 kingdoms(plus virus), each with their own other characteristics.
Monosaturated fats and poly saturated fats lower this type of CHOLESTEROL [LDL CHOLESTEROL].
LDL cholesterol is considered to be a bad cholesterol because high level of LDL cholesterol in the blood increase one's risk of developing stroke and heart diseases.
