A. objects made of crystals minerals water and air
Process of elimination-
there isn’t organic matter in rocks so D is out
they are made of minerals so B is out
some types of rock (pumice) have air bubbles in them so A is more likely than C
It involves a systematic process
Answer:
Any population in a given environment contains a variety of available, inheritable genetic traits. ... In a population, there is a cause-and-effect relationship between the variation of traits and the probability that specific organisms will be able to survive and reproduce.
Explanation:
Answer:
<em>The United States population consumes too large a portion of the world's resources due to relatively affluent lifestyles.</em>
Explanation:
The United States is known to be the most powerful country in the world and due to being such powerful, the lifestyle here is versatile and more affluent. As the country is rich, people tend to use resources beyond their needs. More resources are wasted in this country as the country has an adequate supply of almost everything. Hence, it is rightly argued that there is a serious consumption problem in the United States.
Answer:
elongation rate of strain of S.cerevisiae during transcription.
wild-type and experimental strain not treated with soultion of amanitin will be the control group. The elongation rate of mRNA of this group must be observed.
Explanation:
Dependent variable is one whose value depends on another value. Here effect of presence of mRNA polymerase enzyme and inhibtor on elnogatino rate of mRNA is being observed. So elongation rate is the dependent variable
Control group is one where independent variable whose effect is being observed can't influence the results. In experiment 2, the effect of inhibitor is being observed. So the control group must not have that inhibitor. Other conditions must remain same for experimentan and control group.
