Which elements are most abundant in living organisms?
A) oxygen, nitrogen, carbon, hydrogen, sulfur, and phosphorus
B) carbon, potassium, iron, magnesium, hydrogen, and nitrogen
C) hydrogen, carbon, calcium, potassium, oxygen, and phosphorus
D) oxygen, calcium, phosphorus, sodium, hydrogen, and carbon
A) oxygen, nitrogen, carbon, hydrogen, sulfur, and phosphorus
B) carbon, potassium, iron, magnesium, hydrogen, and nitrogen
C) hydrogen, carbon, calcium, potassium, oxygen, and phosphorus
D) oxygen, calcium, phosphorus, sodium, hydrogen, and carbon
Answer & ExplanationAnswer: A) oxygen, nitrogen, carbon, hydrogen, sulfur, and phosphorus
Explanation:
Living organisms often contain trace amounts of several elements, but the most abundant ones are oxygen, carbon, hydrogen, nitrogen, calcium, sulphur and phosphorus.
Select the correct statement about the uterine cycle.
A) During the secretory phase, estrogen levels are at their highest.
B) During the proliferative phase, levels of progesterone rise as the follicle begins to produce more hormone.
C) If fertilization occurs, the corpus luteum is maintained by a hormone secreted by the developing embryo.
D) The menstrual phase of the cycle is from day 1 to day 8.
A) During the secretory phase, estrogen levels are at their highest.
B) During the proliferative phase, levels of progesterone rise as the follicle begins to produce more hormone.
C) If fertilization occurs, the corpus luteum is maintained by a hormone secreted by the developing embryo.
D) The menstrual phase of the cycle is from day 1 to day 8.
Answer & ExplanationAnswer: C) If fertilization occurs, the corpus luteum is maintained by a hormone secreted by the developing embryo.
Explanation:
"If fertilization occurs, the corpus luteum is maintained by a hormone secreted by the developing embryo." is the only correct statement about the uterine cycle among the options.
Aptitude and Reasoning
General Knowledge
Puzzles
Interviews
Technical
Certifications
Exams
Job
Roles
True or False
Exams