<span>In liver, the most intensively studied transmembrane and intracellular signal transduction pathways are the Janus kinase signal transduction pathway, the mitogen-activated protein kinases signal transduction pathway, the transforming growth factor β signal transduction pathway, the tumor necrosis factor α signal transduction pathway and the recently discovered sphingolipid signal transduction pathway. All of them are activated by many different cytokines and growth factors. They regulate specific cell mechanisms such as hepatocytes proliferation, growth, differentiation, adhesion, apoptosis, and synthesis and degradation of the extracellular matrix. The replication cycle of hepatitis C virus (HCV) is intracellular and requires signal </span>
Answer:
Live a healthy lifestyle and avoid anything that may trigger such Diseases.
<span>Answer: a. Citizens over the age of 65 use social media primarily to follow the activities of their families. </span>
<span>More than half of the citizens over 65 say that they have a social media account. They read other postings but post information about one-fifth as often as they read posts. Most of their feeds consist of posts by relatives. From this passage, we can logically say that Citizens over the age of 65 know how to use the social media and they use it primarily to follow the activities of their families. </span>
Answer: biotic and abiotic factors are the environmental conditions that the organisms have to face to live in a specific environment
Explanation:
At the end of week 8 of development, the perichondrium surrounding the diaphysis is invaded by blood vessels and becomes a component of bone-forming <u>Periosteum.</u>
The perichondrium functions in growth and repair of cartilage. It resists outward expansion when cartilage is subjected to pressure. The perichondrium is a dense layer of fibrous connective tissue that covers cartilage in various parts of the body. Perichondrium tissue commonly covers these areas: elastic cartilage in parts of the ear, nose and hyaline cartilage in the larynx. This means that the bone can only grow in length, not width. The epiphyses are pushed away from each other. After the chondrocytes have undergone hypertrophy, they die.
Learn more about perichondrium here-
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