The cell membrane allows substances to enter and leave the cell and gives the cell structure.
Proteins (Polypeptides with a unique amino acid sequence) are required to guarantee that the accuracy of replication is compatible with the low frequency of errors that is needed for cell reproduction Helicases unwind the two strands of parental DNA and creates the replication fork; single strands binding proteins keep the single strands from reuniting
The right answer is angiosperms
One of the major turning points in this plant history is undoubtedly the appearance of angiosperms (flowering plants) towards the early Cretaceous. The first dinosaurs lived in a plant universe that is noticeably different from the one we know today because it is dominated by ferns, cycads, conifers and plants that are now extinct.
Answer:
Ecological succession may also occur when the conditions of an environment suddenly and drastically change. A forest fires, wind storms, and human activities like agriculture all greatly alter the conditions of an environment.
Explanation:
Answer: by the consumption of other organisms. At the cellular level, the biological molecules necessary for animal function are amino acids, lipid molecules, nucleotides, and simple sugars. However, the food consumed consists of protein, fat, and complex carbohydrates
Explanation:im a expert in animals
