Answer:
Smoke-induced oxidative stress limited the oxygen-carrying capacity of the previous red blood cells
Explanation:
The red blood cell (RBC) contains hemoglobin which helps in the transport of oxygen. However, the Jane's smoking must have induced oxidative stress to the cells of her body including RBC, thus compromising it's oxygen-carrying capacity.
Hence Jane's body increased RBC count in order to maintain oxygen supply to all cells of her body.
Answer:
all but option b is incorrect as in your list
Answer: d. none of the other answers
Explanation:
Enzymes that turn chemical energy into mechanical work are molecular motors.
There are three main components of cytoskeleton including microtubules, actin filaments and Intermediate filaments. Only actin filaments and microtubules carry the motor-driven transport on the cytoskeleton.
The most important feature of intermediate filaments is to provide the plasma membrane with mechanical support where it comes into contact with the extracellular matrix and other cells.
Unlike microtubules and microfilament , intermediate filaments are not involved in motility of the cells, hence do not associat with molecular motors.
Hence, the correct option is d.
In most ecosystems, the original source of energy for the living things in the system is the sun.
What is not the ultimate goal of science is to produce unchanging and absolute answers . Scientists would like to, however, understand patterns, give explanations for natural events, and even make predictions.
And it isn't really the case that they would like to produce unchanging answers.
