Shawna is very knowledgeable about cars. she subscribes to several different automobile magazines, has interviewed people who work on cars for a living, and has researched many types of cars. she started a blog with the information she has gathered. on her blog, she offers opinions about which cars are the best value for the money and which are the most difficult to repair. which best describes the reliability of her work?

The answer is B: It is unreliable because it offers opinions, not scientific facts.

Explanation:

Every other answer is too broad.

answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]

answer; both surfaces of the membrane are nonpermeable