C is your answer :)
And also C and D are true but its C.
This question is on Yahoo Answers
Answer:
The correct answer is C) Passive transport
Explanation:
During the respiration process exchange of gases takes place between lungs and blood. This gas exchange is carried by simple diffusion which is a passive transport. Here gas molecule moves from area of higher concentration to the lower concentration area.
The lung's alveoli are surrounded by blood capillaries in which the concentration of CO2 is high while in alveoli concentration or partial pressure of CO2 is low so CO2 moves from blood to alveoli through diffusion.
In the case of oxygen, the concentration of oxygen is high in alveoli and less in blood inside blood capillaries so oxygen moves from alveoli to blood by diffusion. So the right answer is C.
<span>Three anatomical features that birds share with their theropod ancestors are:
</span><span>1. they had light, hollow bones
</span>2. they rearranged hip and leg muscles because this of <span>improved bipedal movement
</span>3. they had their flight oriented with the use of wings for balance
Answer:
A & B
Explanation:
A - When a CME hits the Earth's atmosphere, it results in a (temporary) disturbance of the Earth's magnetosphere - a geomagnetic storm.
B - In basics, solar wind drags the magnetic field lines of coronal holes so far out that it surrounds all of the planets in the solar system, forming an IMF.
Answer:
Vascular plants and phloem
Explanation:
xylem vessel transports tissue in them. They mainly transport water/nutrient through the roots to the stem and leaves.
I hope this helps!