Answer:
Option-C
Explanation:
Scientists found a fossil of a fish with four limbs or legs. The fossil was estimated to be around 375 million years old.
The fossil showed the fins and scales of a fish but they also possess the bones of proto-wrist, shoulders and the elbow.
The presence of these bones can be a clue that the fish evolved the limbs to walk on the land and will later evolve into animals belonging to amphibians, reptiles and mammals. Therefore, the Tiktaalik is considered the missing link of how life evolved from water to land.
Thus, Option-C is correct.
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Answer:
Your answer would be a autosomal dominant disorder.
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Definition:
Autosomal Dominant Disorder:
A disorder in which could pass a disease from generations and on. In other words, future generations "inherit" the disease
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Explanation:
The reason why "autosomal dominant disorder" is the correct answer because when a disease has been going on for many generations, this would be known as an autosomal dominant disorder, or ADD. What this means is that a person could have a mutant gene in them, also having a normal gene that is paired with autosomal chromosomes. These diseases are inherited from a off spring that could take the disease and pass it on to their off springs, which would go on for generations due to the fact that it is a "dominant" trait. This is similar to the autosomal recessive disorder, but the autosomal recessive disorder needs two mutant genes in them, meaning that there is a less likely chance of getting the disease passed on to the off spring. The autosomal dominant disorder only needs one mutant gene in order to be effective during the inheritance for a offspring.
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B. Plant cells have a cell wall, so they become turgid, or swollen, instead of bursting.
Answer:
d. superior to the popliteal region
Explanation:
The lumbar region comprises five vertebrae of the back where the spine bends outward. This part of the spine is essential as it holds the majority of the body weight and also offers flexibility. The popliteal portion is situated at the backend part of the knee and forms the lumbar region at its superior segment. So, the correct answer is option d.
