Answer:the answer is B hope this help
Explanation:
Answer:
Tt - 1/2
tt - 1/2
Explanation:
<em>A cross between a tall pea plant and a short pea plant that produces 43 tall and 47 short offpsring (almost 1:1) is most likely a cross involving a heterozygous tall individual and a homozygous short individual.</em>
Tt x tt
Offspring = Tt Tt tt tt (50% tall and 50% short)
If one of the tall offspring (Tt) is crossed with one of the short offspring (tt):
Tt x tt
Offspring = Tt Tt tt tt
Genotype ratio = 2Tt:2tt
Hence,
Tt = 1/2
tt = 1/2
<h3>
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 correct answers are <span>by adding greenhouse gases to the atmosphere by using natural resources, by polluting the land, water, and air, by creating landfills and by introducing invasive species to the environment.
Adding greenhouse gases to the atmosphere contributes to the rise of the global temperature and climate change which leads to the rise in sea level, and extreme weather conditions.
By polluting the land water and air and creating landfills humans are destroying not only the habitat of many plants, animals, and other organisms but also for themselves.
Overexploitation of the natural resources also leads to the destruction of habitat and collapse of ecosystems.
The introduction of invasive species often leads to disruption of the food chain of an ecosystem since the invasive species might be more efficient in this habitat and suppress the native organisms.
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