Answer:
Organisms depends on physical and biological factors of an ecosystem.
Explanation:
Biological and physical changes cause shift in an ecosystem's populations because the population of organisms depends and greatly affected from the environmental factors such as temperature, moisture etc. These environmental factors causes change in the physical features of an ecosystem so when these changes occur in physical factors, it greatly affected the population of organisms.
Answer:
It needs the spines for protection
Explanation:
The cactus would develop the spines as a form of protection to protect itself from being consumed and to survive longer.
The minerals are mostly characterized by the <u>Physical</u><u> </u><u>properties</u><u> </u><u>(</u><u>D</u><u>)</u> which includes the hardness, lustre, density etc. The mineralogists check the detailed view of minerals by using high powered microscope.
The minerals are chemical compounds which are formed as a result of physical processes or geological processes. They mostly occur in crystalline form. <u>For Example:</u> Cacite, Sulfur, Quartz etc
<u>━━━━━━━━━━━━━━━━━━━━</u>
2 degrees Fahrenheit and ~ 1 degree Celsius
Heaps and heaps and heaps and heaps of them!