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.
Answer:
Coal is a non-renewable source of energy that takes many years to produce. - Metamorphic rocks are formed during intense heat and pressure to: Igneous rocks, sedimentary rocks and other metamorphic rocks. They can also be formed when lava so hot it changes the minerals flows over rocks.
Explanation:
Answer: Intercalated discs
Explanation:
The intercalated discs are unique structural formations which are found in the cells of the heart.
They are equipped for special functions. Thay play a vital role in the bonding of the heart cells and muscles that helps in transmitting the signals between cells.
These cells are known as intercalated cells which helps in cell to cell interaction.
C. Swell due to the liquid it will start to swell up.
The cells had too much carbon dioxide, so they used aerobic respiration as a source of energy.