Answer:
When substances react and the temperature of the mixture decreases, the reaction is endothermic. ... If a reaction is exothermic, more energy is released when the bonds of the products are formed than it takes to break the bonds of the reactants. This is the reason for temperature change during a reaction.
Answer:
they control small specific functions in the cell
Explanation:
genes are very crucial in every organisms since they determine the tiniest composition of the cell,evolving from the parent organism.
Answer:
E. coli is a specie of bacteria that are found in the gut of many animals which helps in maintaining the conditions necessary for the digestion of food.
Explanation:
E. coli is a bacteria which causes no harm to the human or other animals while living in the stomach. In stomach, it helps the digestion of food and make nutrients like vitamin K, which is necessary for the growth of animal body and make the stomach healthy.
Answer:new. chemicals are produced so quickly that living that's do not have time to adapt
Explanation:
Answer:
<u>Thymine and Cytosine</u>
Explanation:
Genes are stored within DNA or deoxyribonucleic acids- these are long-chain, macromolecules that form a double helix. They are made up of nucleotides, special monomers made up of nucleotides comprise, 5-Carbon deoxyribose sugar, a nitrogenous base (adenine, guanine thymine, and cytosine) and a phosphate group.
The nitrogenous bases pair up via hydrogen bonding. The pyrimidine bases include <u>cytosine and thymine</u>. In base-pair formation, Adenine forms double bonds with thymine, and cytosine bonds with guanine. These pyrimidines are 6 carbon ringed molecules that contain a double bond.