Answer:
E. all of the above
Explanation:
Toll-like receptors are found on the surface of immune cells such as dendritic cells and are activated upon recognition of pathogens. They are so called pattern recognition receptors as they are able to recognize the pathogen-associated molecular patterns and trigger a series of reactions within the immune cells including cytokines, defensins and other bacteriocidal molecules.
All medical research is carefully planned, and this includes medical
research with animals. Experts who review a scientist’s proposed
experiment involving animals weigh several considerations before
approving each study.
The most important thing is that the research must be relevant
to human or animal health. Studies need to protect the animals’
welfare. That means that only the fewest number of the most
appropriate species may be used. Under federal law, all animals
must be treated humanely and undergo the least distress possible
Answer: c deltas
Explanation: hope this helps
Answer:
a. 0.5 grams b. 0.25
Explanation:
Just use the half-life formula(I linked it below)
a. 4(1/2)^90/30=1/2
b. 4(1/2)^120/30=1/4