A double layer of phospholipids
Answer:
The embryo develops the heart, nervous system and face.
Explanation:
The nervous system is one of the first things to develop, following is the heart and then their face. Physical traits which also develop are the arms, legs and sexual organs.
Answer:b. Amino acid sequence, hydrogen bonding between backbone groups, the overall shape of a single polypeptide, and combinations of tertiary structures.
Explanation: Primary structure is the amino acid sequence in the polypeptide chain. When the sequence is altered due to mutation it can lead to formation of entirely new amino acid sequence.
Secondary structure could be the helical structure or the Beta pleated sheet. It is form from the interaction of atom that are backbones.It is the hydrogen bond between amino Hydrogen and carboxyl oxygen atom in the backbones
Tertiary structure- Overall structure of polypeptide. It result from interaction of the R groups amino acids. It gives the shape of the polypeptide.
Quantenary- Are protein made up of multiple polypeptide chain. This chain are also called subunit. It is the combination of all tertiary structures given rise to a functional protein.
A habitat<span> is an ecological or </span>environmental<span> area which is inhabited by particular species of animals, plants, or other type of organism.
</span><span>Environmental factors that create different habitats include:
temperature
topography
growing seasons
animals
plants</span>
