Answer:
TEF-thermic effect of food
Explanation:
The thermic effect of food is the energy needed for digestion, absorption, and removal of ingested nutrients. Its magnitude relies on the components of the food consumed: Carbohydrates has 5 to 15% of the energy ingested while Protein 20 to 35% of the energy ingested.
The thermic effect of food can be determined by multiplying the total calories derived from food by 10%. For example, a 2000 calories diet a day will consume approximately 200 calories in digesting the food.
Answer:
Option A, Rabies virus
Explanation:
Complete Question
A scientist discovers a new virus with a linear, RNA genome surrounded by a helical capsid. The virus is most likely a member of which family based on structure classification?
1. Rabies virus
2. Herpesviruses
3. Retroviruses
4. Influenza viruses
Solutions -
Genetic material can be linear or circular. It is linear and single stranded in viruses such as rabies, smallpox, retroviruses etc. Rabies virus has enveloped helical capsid. Retrovirus though have a linear RNA but possess a hexagonal capsid with 12 pentamers enclosed with in a shell. Genome structure in influenza virus is segmented and herpes virus is a DNA virus.
Hence, option A is correct
The two main tissues are bone and cartilage.
Bone is made up of collagen and calcium phosphate provides support and protection for body organs
Cartilage which is made up of closely packed collagenous fibers provides flexible support for structure such as ear, nose and trachea
Answer:
True.
Explanation:
The Chargaff's rules indicate that in the DNA of all living organisms the amount of adenine (A) should be equal to the amount of thymine (T), while the amount of guanine (G) should be equal to the amount of cytosine (C). These rules were useful to describe the structure of the double helix and also enable to describe base patterns that often are associated with specific gene regions (for example, promoter regions are rich in AT). Moreover, an imbalance in the 1:1 equilibrium ratio is associated with mutations that may cause diseases such as cancer.