B and D would be the answers i think
Answer:
A crime scene investigator wants to use a forensic lamp to look for particles on a carpet at a crime scene. Which technique will she use to find the particle evidence?
infrared technique
Explanation:
infrared technique helps in absorption, emission and reflection which would be used to find the particle evidence
A potometer can be used to measure the rate of transpiration that's proportional to water uptake. Transpiration cannot be measured directly as some of the water will be used in photosynthesis.
<span>Globally, diversity naturally has increased over time, though the great mass extinctions have decreased it for a while. The most famous of the mass extinctions is the one that claimed the dinosaurs, but we are currently in the midst of a human-created mass extinction. Local diversity, on the other hand, is constantly increasing and decreasing at very short time scales. There are many factors that affect diversity, and the major natural circumstances are given here. Human-generated impacts on diversity have almost always been negative, and are covered in the Conservation Issues section.</span>
Answer:
At low Ts= Hopanoids increase membrane fluidity
At higher Ts= Hopanoids reduce the membrane fluidity
Explanation:
Bacterial membranes lack cholesterol but have hopanoids. Hopanoids are synthesized from the same precursor as the steroid. The hopanoids also have five fused ring structures like that of cholesterol. The amphipathic nature of hopanoids allows them to maintain the membrane fluidity under low and higher temperature conditions.
When the temperatures are higher, the hopanoids serve to reduce the membrane fluidity by their ability to interact with polar heads and non-polar tails of the membrane phospholipids. At lower temperatures, hopanoids insert themselves between the non-polar tails of phospholipids to increase the membrane fluidity.