Answer:
strong, dense outer layer of a bone- compact bone
tissue in the hollow part of the bone- bone marrow
lightweight, inner layer of a bone that
contains many small spaces- spongy bone
Explanation:
Compact bone is also known as cortical bone and is a major property and source of skeletal frames in the body due to its strong, dense outer layer.
Bone marrow is the tissue in the hollow part of the bone. It is important as it helps in the production of blood cells
Spongy bone is also known as cancellous bone. It is the lightweight, inner layer of a bone that contains many small spaces which contains a high proportion of bone marrow.
I would say that active transport is the answer because it's from LOW concentration to HIGH concentrations, so it's going against the concentration gradients.
Answer:
yttrium
Explanation:
the atomic number of yttrium is 39 and the mass number of yttrium is 88.90585u.
element y is yttrium
I don’t think it’s insane, it’s just how is humans are. I don’t think it’s nice. I was very aware about the situation as a whole, bit it’s what people have been doing for years, like years and years. It’s kinda human nature