By capturing the pollen on their feet as they land on each new plant
Each sieve tube element is normally associated with one or more nucleated companion cells, to which they are connected by plasnodesmata (channels between the cells). Each companion cell is derived from the same mother cell as its associated sieve tube member. Sieve tube members have no cell nucleus, ribosomes, or vacues. Thus, they depend on companion cells to provide proteins, ATP, and signalling molecules
Liver
I think.. but hopefully it helps :))
Answer;
-Controls
Explanation;
A control is something that is used as a standard of comparison for checking the results of an experiment. A control is important for an experiment because it allows the experiment to minimize the changes in all other variables except the one being tested.
There will frequently be two groups under observation in an experiment, the experimental group, and the control group. The control group is used to establish a baseline that the behavior of the experimental group can be compared to.
-Without an experimental control group, it is difficult to determine the effects of the independent variable on the dependent variable in an experiment.
Answer:
35%
Explanation:
we know that all the guanine pairs with all the cytosine
that means there is also 15% cytosine
100-15-15=70%
this 70% represented by thymine and adenine
all the thymine paris with all the adenine
that means the number of thymine bases is equal to the number of adenine bases
70/2=35%thymine