![subject](/tpl/images/cats/biologiya.png)
Biology, 26.01.2020 11:31 allytrujillo20oy0dib
Birds that fly have lightweight bones some of which are hollow how might this unique body structure benefit the bird?
![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)
Biology, 21.06.2019 23:30
In iceland, the mid atlantic ridge runs through the center of the contry. what can you conclude about the apperence of iceland many thousands of years from now?
Answers: 2
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 01:30
How do you date a sample of rock that you suspect as being one of the earliest on earth
Answers: 1
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 11:00
Fill in the blank 1. digestion occurs in the small intestine through the action of enzymes. 2. urea, excess water, and other waste materials are eliminated in a water fluid called 3. can cause infections by injecting dna or rna into hosts. 4. the human immune system produces in response to a vaccine, which later can bind to and destroy a pathogen if it invades. 5. are structures that link bone to bone at a joint 6. in the heart, blood flows from the right atrium to the right ventricle, where it is pumped to the the words i can use are: lymphocytes gliding pivot gas urine absorption dermis fulcrum lungs chemical viruses capillary vertebrae esophagus tendons antibodies synapses ligaments kidneys pathogens
Answers: 1
![question](/tpl/images/cats/biologiya.png)
You know the right answer?
Birds that fly have lightweight bones some of which are hollow how might this unique body structure...
Questions
![question](/tpl/images/cats/ekonomika.png)
Business, 08.10.2019 18:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 08.10.2019 18:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 08.10.2019 18:00
![question](/tpl/images/cats/mir.png)
World Languages, 08.10.2019 18:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 08.10.2019 18:00
![question](/tpl/images/cats/himiya.png)
Chemistry, 08.10.2019 18:00
![question](/tpl/images/cats/mat.png)
Mathematics, 08.10.2019 18:00
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
History, 08.10.2019 18:00
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/fizika.png)
Physics, 08.10.2019 18:00
![question](/tpl/images/cats/mat.png)
Mathematics, 08.10.2019 18:00