Which substance is essential in keeping your bones strong?
a. Oxygen
b. Calcium
c. Neo...
![subject](/tpl/images/cats/biologiya.png)
Biology, 05.05.2021 18:50 artsycentury
Which substance is essential in keeping your bones strong?
a. Oxygen
b. Calcium
c. Neon
d. Chlorine
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Biology
![question](/tpl/images/cats/biologiya.png)
Biology, 21.06.2019 21:00
Which of these serves as a reference for comparison during a scientific investigation? a)outcome variable (dependent variable) b) test variable (independent variable) c)control group d)hypothesis
Answers: 1
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 02:30
What evidence supports the law of conservation of energy? a) mechanical energy is converted to chemical energy during photosynthesis. b) oxygen is made from the breakdown of carbon dioxide during photosynthesis. c)energy is absorbed by chlorophyll and becomes chemical energy during photosynthesis. d)the sun gives off light energy that is absorbed by plants.
Answers: 1
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 06:00
Which example would the nurse consider to be a part of systems thinking theory?
Answers: 1
You know the right answer?
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 16.07.2019 17:30
![question](/tpl/images/cats/biologiya.png)
Biology, 16.07.2019 17:30
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/ekonomika.png)
Business, 16.07.2019 17:30
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 16.07.2019 17:30
![question](/tpl/images/cats/biologiya.png)
Biology, 16.07.2019 17:30
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/fizika.png)
Physics, 16.07.2019 17:30
![question](/tpl/images/cats/mir.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mir.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 16.07.2019 17:30
![question](/tpl/images/cats/mat.png)
Mathematics, 16.07.2019 17:30
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)