The fossil that I believe are heterotrophs cannot produce their food which includes all animals, fungi, and most bacteria and protists. These fossils are A, C, and fossil D. The other kind of fossil is an autotroph which is an organism that can produce its own food using light, water, carbon dioxide, or other chemicals. This kind of fossil is fossil B.
Yes, it is a good research question because it focuses on one aspect of her topic.
<h3>What is a research question?</h3>
A research question is a question that leads to the formulation of a hypothesis or explanation to understand the real world.
A plausible hypothesis needs to be testable, which in this case means to use statistics for example, quality of life of people, to test (reject or confirm) this explanation.
In conclusion, yes, it is a good research question because it focuses on one aspect of her topic.
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Answer:
Blueshift is observed when relatively large lattice spacing is decreased due to radiative dipole interactions between nanoparticles.
Answer:
The longest strand of DNA is the one that has descended the least in the electrophoresis gel. In other words, it is the one at the top of the gel.
Explanation:
Electrophoresis is a process that separates DNA according to its size and charge. The scientist puts the DNA samples into the indents at the top of a special gel. Then the person places it in a box that contains an ionic solution, a positive electrode at the bottom, and a negative electrode at the top. As the DNA has a negative charge, it will descend through the gel's pores towards the positive electrode. Since there are DNA of different lengths, the shortest goes down quickly through the gel than the large strands. As a result, the short strands of DNA will be at the bottom of the gel, the medium size strands will be in the middle of the gel, and the l<u>arge strands on the top of the gel</u>.
Explanation:
<u>1. Chondrite </u>dating on the primitive meteorites that have been collected show that they are around 4.6 billion years old.
Chondrites are described as stony meteorites generally unmodified by changes to the parent body such as melting induced by high heat or becoming differentiated by separating into constituent layers. Chondrite-dating utilizes isotopes of lead, 206Pb/204Pb to provide age or chronometric estimates of around 4.6 billion years- this is further confirmed via their composition, which consists of stable, nonvolatile elements common in stars within this galaxy.
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