I DON'T THINK THERE IS A RIGHT ANSWER FOR THIS BECAUSE WHAT I FIGURED OUT IS Leucine - Lysine - Cysteine - Phenylalanine THIS AND I DON'T THINK THERE IS ANY OPTION.
I MIGHT BE WRONG SO DON'T JUDGE ME:))).
Answer is thousands of different proteins
Proteins are macro-molecules, made up of small units or building blocks. These building blocks are called amino acids. To build a protein, first the amino acids are connected into long chains, called polypeptide chains. These chains of amino acids fold into all types of shapes. Some chains fold into spirals. Combining these spirals, sheets, and loops is how the three-dimensional shape to build a functional protein. The human body uses just 20 amino acids to make all the proteins it needs to function and grow. Because amino acids can be arranged in many different combinations, it's possible for our body to make thousands of different kinds of proteins from just the same 20 amino acids.
This is the chemical equation for photosynthesis
6CO2+6H2O--->C6H12O6+6O2
the inputs are the ones on the left:
carbon dioxide used in the calvin cycle and water used in the light-dependent reactions
the outputs are on the right
glucose resulted from the calvin cycle and oxygen resulted from the light dependent reactions
Answer: Annelida
Leeches are soft bodied segmented parasitic worms. They belong to the phylum Annelida. They are hermaphrodites which means they exhibit sex organs of both male and female.
The characteristics which are found in leeches which group them into Annelida are:
1. The body of the leeches are bilaterally symmetrical like other Annelids. The body organs are also segmented.
2. They have a closed circulatory system in which the heart pumps the blood to all the parts of the body.
3. Leeches either exhibit a protusible pharynx or proboscis which allows them to suck the blood of the host such features are also common in other Annelids.
Oil and natural gas were formed from the remains of prehistoric plants and animals—that's why they're called fossil fuels. Hundreds of millions of years ago, prehistoric plant and animal remains settled into the seas along with sand, silt and rocks.