The answer to this question would be because phospholipid is polar has <span>a </span>charge.
Since phospholipid is polar, it can attract molecule with a charge. That will cause the molecule cant move easily pass the membrane. The hydrophobic molecule doesn't have charge, so the molecule can pass through the phospholipid membrane if it small enough.
I think that the best phrase to fit into the blank is a "scientific theory".
A scientific theory is developed through experiments which use the scientific method, and a theory can be improved if additional data is available or if people provide suggestions which make the theory fit the data better.
Answer:
Cane toads are considered an invasive species and are poisonous to most animals that try to bite or consume them.
Explanation:
The micro organisms are found in
<em><u>hot springs
</u></em><em><u>soil
</u></em><em><u>snowfield
beneath earth
rocks
inside roots
swamps
water...
</u></em>