Answer:
Osteoblasts
Explanation:
Cells that secrete protein fibres in bones are called osteoblasts.
I hope this helps.
Answer:
The correct answer is A. 3O₂ + 2Al → 2AlO₃
Law of conservation of mass states that mass can nether be created nor destroyed in a closed system or chemical reaction i.e. the total mass of the matter always remains the same throughout the chemical or physical change.
For example, in the given reaction 3O₂ + 2Al → 2AlO₃ the total mass of the reactants is equal to the total mass of the product.
Mass of oxygen = 16 x 3 = 48 AMU
Mass of aluminium = 2 x 27 = 54 AMU
Total molecular mass of the reactants = 102 AMU
Total molecular mass of the product = 2 x 27 + 6 x 8 = 102 AMU.
Hence, the total mass of the matter remains the same.
Answer:
A) boreal forest and tundra
Explanation:
Boreal forests are present north of 50-60 degree north latitude. Tundra biomes are also called as arctic tundra and are also located in extremes of the north latitude. Boreal forests are world' largest biome and stretches across both North America and Eurasia. So, the two habitats are found at high latitudes among the given options are: boreal forest and tundra.
Answer:
A white cheesy substance that covers and protects the skin of the fetus and is still all over the skin of a baby at birth
Explanation:
Chromatids......then chromosome !!!
