Active transport requires energy because it usually involves the movement of
A. substances in t...
![subject](/tpl/images/cats/biologiya.png)
Biology, 28.03.2020 00:21 explained1256
Active transport requires energy because it usually involves the movement of
A. substances in the gas phase, such as oxygen and carbon dioxide.
OB. substances from an area of high concentration to an area of low concentration
OC. substances that can easily pass through the cell membrane, such as water.
D. substances from an area of law concentration to an area of high concentration.
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Biology
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 03:00
Radiometric dating is used to tell the absolute age of materials by studying the decay rate of radioactive isotopes. the decay rates of isotopes are constant and are expressed as .
Answers: 1
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 07:00
Which best describes the scientific method? a. a path of clearly defined steps that must be followed in a particular order b. a possible answer to a scientific question based on knowledge or research c. the recipe for how to conduct an experiment that must be followed precisely d. the process of hypothesis and testing through which scientific inquiry occurs
Answers: 1
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 07:30
Match the reproductive structures based on their function and the system to which they belong. egg ovary sperm vas deferens vagina fallopian tube testis urethra
Answers: 1
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 14:30
Fill in the blank with the best word to complete the sentence. white blood cells protect against and aid in blood clotting when injuries are sustained.
Answers: 2
You know the right answer?
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 13.08.2020 21:01
![question](/tpl/images/cats/istoriya.png)
History, 13.08.2020 21:01
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 13.08.2020 21:01
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
English, 13.08.2020 21:01
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/en.png)
English, 13.08.2020 21:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 13.08.2020 21:01
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/es.png)
Spanish, 13.08.2020 21:01