CFCs are Chlorofluorocarbon substances used in refrigerants (subtances used to keep other things cold) and in aerosol products.
they are both relatively nontoxic(nonpoisonous) and nonflammabale - at least as compared to alternatives.
They are rather volatile - they are not very stable. Therefore it does not make sense to say that they are strong - the correct answer is then strength.
Answer:
C. sharp thorns
Explanation:
The plants stand still, are not very physically active, and seem to be on the menu of many animals. Precisely because they cannot win at the first sign of danger, one has developed other ways in which they can defend themselves from annoying and dangerous animals.
Some have developed long thorns that repel attackers. Some have poisons that are very strong and because of which animals do not think of trying to eat that plant, but the defense of some plants seems to be well thought out and ready for all forms of attack.
Complete question: A hydrophilic peptide hormone is produced in the anterior pituitary gland located at the base of the brain. The hormone targets specific cells in many parts of the body.
Which of the following best explains a possible mechanism that would enable the hormone to efficiently reach all of the target cells in the body? answer choices
A. The hormone interacts with the nerves at the base of the brain and directs signals to the target cells through the nervous system.
B. The hormone diffuses into target cells adjacent to the anterior pituitary gland, where the hormone is degraded.
C. The hormone is released into the bloodstream where it can be transported to all cells with the correct receptors.
D. The hormone moves through cytoplasmic connections between cells until it has reached all cells with the correct intracellular binding sites.
Answer: (C) The hormone is released into the bloodstream where it can be transported to all cells with the correct receptors.
Explanation: Hydrophilic peptide hormone is secreted in the anterior pituitary gland, which is in a form of chemical signals or ions. These signals are secreted into the bloodstream (duct) and are passed through the blood to get to a target organ, which possess cells signalling the appropriate receptor that binds to the chemical messenger (ligand), then signal transduction is established.