Answer:
Because the H7N9 avian virus acquired pathogenic mutations in order to infect mammalian hosts
Explanation:
H7N9 is a subtype of influenza avian viruses that has recently been reported to infect humans. Fortunately, H7N9 has also been reported to have a low pathogenic level; however, mutations might change this level to become more infectious for humans. Consequently, mutations in a given H7N9 strain might enable its adaptation and higher affinity to human-type receptors, being more aggressive to human cells, especially in lung cells, since this virus is characterized by rapid progression and respiratory failure.
Answer:
There heart stops beating or they turned blue and stink
Explanation:
Bruits
bruits- Distinguishing a murmur from a bruit can be challenging. Murmurs originate in the heart or great vessels and are usually louder over the upper precordium and quieter near the neck. Bruits are higher pitched, more superficial, and heard only over the arteries. A gallop is a generic term for an additional heart sounds heard besides the normal S1 and S2 sound.
Answer: (D) All of the above
Explanation:
All the above given options are correct as, the respiratory system lungs are basically developed by the respiratory framework and lungs created from the tissues lumps structure the foregut that is called lung bud. The trachea laryngeal bud is the structure creates further as a longitudinal augmentation from the lung bud.
The urinary kidney system are basically develop by the intermediate mesoderm system and it is located in the lateral plate of the embryo.
The reproductive system of both female and male are basically developed in the urogenital which is also known as gonadal ridge.
Answer:
I would say the protein that help the skin is the underlying tissue
Explanation: