The Sun, like others stars, is a ball of gas. In terms of the number of atoms, it is made of 91.0% hydrogen and 8.9% helium. By mass, the Sun is about 70.6% hydrogen and 27.4% helium.
Pot A that contained no fertilizer or compost will serve as a control in this experiment.
<h3>What is Fertilizer?</h3>
Fertilizer may be defined as any chemical or natural substance which is added to the soil with the intention to enhance the soil productivity.
Pot B contained fertilizer, while pot C contained compost, they will definitely grow more than pot A, but pot A serve as a control for this experiment because it does not contain any added resources into it. Hence, it grows naturally.
Thus, it is well described above.
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The evolutionary history of a group of organisms especially as depicted in a family tree diagram showing the evolutionary interrelations of a group of organisms
derived from a common ancestral form. The ancestor is in the tree
“trunk”; organisms that have arisen from it are placed at the ends of
tree “branches.” The distance of one group from the other groups
indicates the degree of relationship; i.e., closely related
groups are located on branches close to one another. Phylogenetic trees,
although speculative, provide a convenient method for studying
phylogenetic relationships.
Answer and Explanation:
The correct answer is option B
B. The treated glioblastoma cells were cultured in the presence of an inhibitor from umbilical cord stem cells, but the control cells were cultured without the inhibitor.
In most plants, the leaves are the main food factories. They capture the sun's energy with the help of chlorophyll in the leaf cells. The chlorophyll traps and packages the energy from the light of the sun in a process called photosynthesis. Leaves usually have a large surface so they can collect the most sunlight.
