B the organ that turns into the shell of the animals
D. law of crosscutting relationships
Explanation:
The law of cross-cutting relationships is applicable to an igneous intrusion that goes through a sedimentary rock.
This law is one of the laws used in relative dating of rock sequences based on the order through which they form in nature.
- The law states that "geologic features such as igneous intrusion, faults, joints are younger than the rocks they cut through".
- In a sequence of strata, the intrusion is always younger than the rock it passes through.
- Faults which are the fractures in rocks are also younger than the rocks they cut through.
Learn more:
sedimentary rocks brainly.com/question/2740663
#learnwithBrainly
Our ancestors only eat what they needed. They did not splurge, or take their girl friends out on dinner dates for fries and greasy meals. They hunted and they dined in the driest and roughest of places. The CroMagnons, as beautful and naked as they were, because a symbol of humanity towards the future.
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.