Answer:
Compositional Layers
Layer Depth
Crust 0-100km silicates
Mantle 100-2900km iron and magnesium silicates
Core 2900-6370km metals
Hope this helps!!!
Answer:
The correct answer is vertebral column and cranium
Explanation:
Vertebrates are the animals that are characterized by having backbone or vertebral column and apart from the vertebral column they also have a bony skull. Skull and vertebral column protect the brain and spinal cord in vertebrates.
Vertebrata is a subphylum under phylum Chordata and clade Craniata so vertebrates have both cranium and vertebral column. In vertebrates, notochord is present in the embryonic stage and is replaced by vertebral column in adults.
Animals that comes under the Vertebrata are fishes, mammals, reptiles, amphibians, and birds. So the correct answer is B and C.
Respiratory system and Circulatory system :P
D.
Different parts of the sun lit moon become visible as the moon revolves around earth
This happens because as the moon orbits earth the sun will project light towards it and the reason it seems to glow is because of the reflected light since the moon is white it reflects more light. Think of it as a day and night cycle except it’s on the moon when it becomes night on earth the part of earth facing towards the sun will be lit aka day/morning/afternoon etc
The part of the earth facing away will be dark aka night/midnight/etc.
Living cells observation useful mircoscope view
