Susan planted a few sunflower seedlings in her garden. after a few days, she noticed the appearance of tiny leaves at the apex. activity in which part of the plant stem could have caused this?
a. apical meristem tissue
b. lateral meristem tissue
c. vascular cambium tissue

"Apical Meristem Tissue" is the part of the plant among the following choices given in the question where the activity in the plant stem could have caused this. The correct option among all the options that are given in the question is the first option or option "A". I hope that the answer has come to your help.

A: Apical Meristem Tissue

Explanation:

Meristems (or metistamatic tissues) are groups of actively dividing cells. In plants, these meristems are divided into 3 main groups:

Apical meristems refers to the tissues around the apices of roots, new shoots and leaves. They are responsible for shoot and root elongation as well as the appearance of new leaves.Intercalary meristems are tissues found in between branches. They are responsible for rapid growth in most monocotsLateral meristems are those found in the lateral regions of plants. They are responsible for increase in girths in plants, especially the woody ones.

The appearance of tiny leaves at the apex of the sunflower planted by Susan must have been due to cell division activities in the apical shoot regions of the seedlings.

Hence, the correct answer is A

Proteins are the workhorses of the cell, controlling virtually every reaction within as well as providing structure and serving as signals to other cells. proteins are long chains of  amino acids  , and the exact sequence of the amino acids determines the final structure and function of the protein. instructions for that sequence are encoded in  genes  . to make a particular protein, a messenger ribonucleic acid (mrna) copy is made from the gene (in the process called  transcription  ), and the mrna is transported to the  ribosome  . protein synthesis, also called  translation  , begins when the two ribosomal subunits link onto the mrna. this step, called initiation, is followed by elongation, in which successive amino acids are added to the growing chain, brought in by transfer rnas (trnas). in this step, the ribosome reads the  nucleotides  of mrna three by three, in units called  codons  , and matches each to three nucleotides on the trna, called the anticodon. finally, during termination, the ribosome unbinds from the mrna, and the  amino acid  chain goes on to be processed and folded to make the final, functional protein