Answer:
Sections of DNA are more similar in organism more closely related
Cytochrome c is used to provide evidence for evolution because most animals have this protein and is has undergone very little changes in these organisms such that more closely related species have the most similarity in amino acid sequence of cytochrome c
Explanation:
Cytochrome c is a protein found in mitochondria and is an important enzyme in cellular respiration. Cytochrome c is a highly conserved (have undergone very little changes) protein that in found in many different species of organismsmsuch as plants, animals, and many unicellular organisms. Cytochrome c is made up of about 104 amino acids linked together by peptide bonds. Being a small-sized molecule (molecular weight about 12,000 daltons) also makes it easier for evolutionary studies to be conducted on it.
Organisms that are most closely related have the most similarity in the amino acid sequence of the cytochrome c molecule. The amino acid sequences in cytochrome c molecule present in organisms is as a result of the information in their DNA.Thus, sections of DNA are more similar in more closely related organisms.
Answer:
Theories and laws
Explanation:
A scientific theory is important because it is an explanation of an aspect of the natural world that can be repeatedly tested and verified in accordance with the scientific method, using accepted protocols of observation, measurement, and evaluation of results. Theories can be proven or rejected, just like hypotheses. Theories can be improved or modified as more information is gathered so that the accuracy of the prediction becomes greater over time.
A scientific law is important because it is a description of an observed phenomenon. It doesn't explain why the phenomenon exists or what causes it. The explanation of a phenomenon is a scientific theory.
Scientific laws do not have absolute certainty (as theorems do), and it is always possible for a law to be contradicted, restricted, or extended by future observations.
longer than those emitted by the sun
Explanation:
The earth's surface emits primary wavelengths whose wavelengths are longer than those emitted by the sun.
They are called long wave radiation because they are less energetic and have longer wavelength higher than those visible light.
- most of the radiation emitted by earth surface is the infra-red region.
- when this radiation enters the atmosphere back, it causes the warming of the troposphere.
- The sun emits energetic short wave radiations.
learn more:
Sun's energy brainly.com/question/1140127
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Answer:
True
Explanation:
Most cells are specialised to perform particular functions, such as red blood cells? that carry oxygen around our bodies in the blood, but they are unable to divide. Stem cells provide new cells for the body as it grows, and replace specialised cells that are damaged or lost.