Well, a eukaryotic has a Membrane-Bound Nucleus.
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Transitional fossils</h3>
Transitional fossils are any fossilized remains of a life form which show common traits to both an ancestral group and its derived descendant group.
<em> Australopithecus afarensis </em>is a hominid that represents an evolutionary transition between modern bipedal humans and their quadrupedal ape ancestors.
Similarities in DNA
All species in the world share some amount of DNA. Species that are more related to each other share bigger amount of DNA than species that are less related. For example fruit fly and modern humans share 61% of their genome and chimps and humans share 96%.
Evolution of the eye
The PAX6 gene controls where eyes develop in animals ranging from fruit flies, octopuses, to mice and humans.
The lithosphere, that is, the solid earth is formed of a limited number of elements and is mainly composed of silicon and oxygen. Hydrosphere refers to all the waters on the Earth, that is, oceans, surface water, glaciers, and groundwater. It is formed of a limited number of elements and is mainly composed of hydrogen and oxygen.
The biosphere is the sum total of all the living matter and is formed of a limited number of elements comprising carbon, oxygen, nitrogen, hydrogen, phosphorus, and calcium. Atmosphere refers to the layers of gas around the planet Earth and is comprised of a limited number of elements, mainly the oxygen and nitrogen.
Thus, it can be said that very less percentage of elements are found in significant amounts in Earth’s biosphere, lithosphere, hydrosphere, and atmosphere in comparison to the total number of elements listed on the periodic table.
Answer:
The sample most useful in identifying the person who committed the crime will be fingerprint. Fingerprints are the impression of finger ridges left on the surface of an entity or area in a crime scene. No two individuals can have same fingerprints. No two fingers of a same individual can produce same fingerprint. These are not found to be similar in identical twins. Fingerprints can be collected from porous and non--porous surfaces. These can be collected easily from crime scene. These fingerprints can be matched with specimens obtained from victims or offenders in order to establish the identity. The physical fingerprint analysis is more superior than DNA fingerprinting as in DNA fingerprinting the results obtained from twins could be similar but physical fingerprints cannot be similar because of different ridge characteristics. Therefore, valuable technique for identification of person who committed the crime.
<h3><u>Answer;</u></h3>
<em>a)9:16 b)3:16 c)3:16 d)1:16</em>
<h3><u>Explanation;</u></h3>
To complete the table;
- EeAA
- EEAa
- EEaa
- eeAA
- eeaa
Unattached earlobes, will either be Ee (heterozygous) or ee (homozygous)
Cleft chin, will either be; AA (homozygous) or Aa (heterozygous)
Attached earlobes will be ee, while no cleft will be aa.
Therefore; <em>the Unattached earlobes and cleft chin = 9/16 </em>
<em>Unattached earlobes and no cleft = 3/16 </em>
<em>Attached earlobes and no cleft = 3/16 </em>
<em>Attached earlobes and no cleft = 1/16 </em>
