Answer:
1) limbs
2) Stegocephalia
3) 367.5 million years ago
4) Fishes
5) Fossils
6) 367.5 million years ago
7) Fishes
8) unearthed or preserved
Answer:
The majority of the cell membrane is composed of PHOSPHOLIPIDS.
Explanation:
Phospholipids are a type of lipid that is found in the cell membrane of cells. This type of lipid are a good fit for cell membrane because they have the capacity to form bi layers. The lipids are divided into tail and head regions; the head is hydrophilic in nature while the tail is hydrophobic in nature. The hyrophilic head is made up of phosphate group while the hydrophobic tail is made up of fatty acid molecules.
It must be man-made and organic
Allows them to stretch and compact when needed
Answer:
mass
Explanation:
the chemical formula for water is H20 which means every molecule of water has 2 atoms of hydrogen and one atom of oxygen. Here comes the key part. from the periodic table of elements one sees that one mole of hydrogen atoms weight 1 gram while one mole of oxygen weights 16 grams.
