Answer:
Explanation:
The population density of an area is a demographic tool used to measure the number of organisms or individuals in a particular area.
It is expressed as;
Population density = 
The unit is expressed as organisms/km²
An area with a high population density is often not desirable as it can lead to pressure on amenities and infrastructure.
Answer:
In order for scientists to keep track of endangered species and discover new species that are created due to the constant change.
Answer: the upper epidermis
Explanation: It helps protect the leaf by aiding in preventing water loss and providing an extra layer between the outside and inside of the leaf
Decreasing radiation from the sun
Answer:
Simple transport of E.coli uses lac permease. For every nutrient transported in through this membrane protein, a H+ accompanies it, and the ... Prokaryotes that lack flagella often glide.
Explanation:
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