![subject](/tpl/images/cats/biologiya.png)
What is the function of the protein keratin? a. to provide support and structure for cells in hair, skin, and nails b. to fight infections caused by bacteria and viruses c. to increase chemical reaction rates in the digestive system d. to transmit chemical signals throughout the body
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Biology
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 02:10
The terrestrial planets are characterized by having a a.) silicate core b.) iron-rich silicate core c.) iron-rich metallic core d.) none of these
Answers: 2
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 06:50
What condition is kept close to its set point in osmoregulation? a. body temperature b.platelet count c.blood glucose level d.water balance
Answers: 1
![question](/tpl/images/cats/biologiya.png)
You know the right answer?
What is the function of the protein keratin? a. to provide support and structure for cells in hair,...
Questions
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/health.png)
Health, 01.08.2019 06:30
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/health.png)
Health, 01.08.2019 06:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 01.08.2019 06:30
![question](/tpl/images/cats/en.png)
English, 01.08.2019 06:30
![question](/tpl/images/cats/biologiya.png)
Biology, 01.08.2019 06:30
![question](/tpl/images/cats/mat.png)
Mathematics, 01.08.2019 06:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 01.08.2019 06:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 01.08.2019 06:30
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 01.08.2019 06:30
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 01.08.2019 06:30
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 01.08.2019 06:30