Answer:
Which of the following mechanisms is used by gram-negative bacteria to cross the blood-brain barrier? D) Inducing TNF
Explanation:
The blood brain barrier is a barrier formed by brain microvascular endothelial cells, astrocytes and pericytes. Pathogens can cross this barrier by using different mechanisms. The Tumor Necrosis Factor (TNF) is the way gram-negative bacteria cross this mentioned blood-brain barrier.
<span>The uncovered fossils of fish and palm trees shows that Earth’s environment has changed. Due to climate change, animals and trees have adapt to it over time. Researchers have found that tropical fish species are likely to leave their homes and populate in cooler waters as the world heats. And the palm trees were found that have grown in Antartica because of the change in temperature.<span>
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Answer:
There are 4 main types of skin cancer:
Basal cell carcinoma. Basal cells are the round cells found in the lower epidermis. ...
Squamous cell carcinoma. Most of the epidermis is made up of flat, scale-like cells called squamous cells. ...
Merkel cell cancer. ...
Melanoma.
Explanation:
A. Nutrients, vitamins would also be a correct answer
Sensory" Neuron
"Associative Neuron"
"Motor" Neuron
