Answer:
im pretty sure its A hope its right
There are 13 levels of organization. In sequence, they are represented as atoms, molecules, organelles, cells, tissues, organs, organ systems, organisms, population, community, ecosystem, biome, and biosphere.
Answer:
4.5 billion years ago
Earth hasn't always been a blue and green oasis of life in an otherwise inhospitable solar system. During our planet's first 50 million years, around 4.5 billion years ago, its surface was a hellscape of magma oceans, bubbling and belching with heat from Earth's interior.
Explanation:
Answer:a product consisting of a natural raw material; an unmanufactured product. Many primary products are exported for processing to the developed nations.
Explanation:
Answer:
D
Explanation:
Example the action of teeth on food in the mouth increase surface area for salivary amylase to start digestion of starch