Answer : Option B) Plant stomata opening and closing to maintain homeostasis.
Explanation : Claude Bernand was a French Physiologist who first discovered about "homeostasis" which is defined as the controlled stability of the internal milieu, or internal environment, of cells and tissues in plants.
In plants stomatal opening and closing was done for maintaining homeostasis with the external and internal plant environment.
Answer:
5 million million atoms can fit at the end of a needle
Answer:
Questionnaire
Explanation:
This is an instrument for research usually in the form of questions with multiple choice answers with sole purpose of gathering information from respondents for research.
Elements in the same group on the periodic table have the same number of valence electrons. The "groups" are the column (or rows). groups are vertically and periods are horizontally.
Answer:
CO contains polar covalent bond, because these atoms share unequal electrons.
