Answer: color blindness is an x linked recessive trait
Explanation:
color blindness is an x linked recessive trait as the pedigree shows the following features:
no skipping of generations
affected fathers have carried to daughters
affected mothers have affected sons
Answer. They are the “last trophic level” in some hierarchies because they feed on everything (National Geographic). However, according to the strict trophic level definition they would be primary consumers.
Answer:
Species become endangered for two main reasons: loss of habitat and loss of genetic variation. A loss of habitat can happen naturally. Dinosaurs, for instance, lost their habitat about 65 million years ago.
Explanation:
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Answer:
Yes, the humans are invasive species.
Explanation:
The homeland of the modern day humans is Africa, thus they are native o the African continent. But the humans started to spread gradually, first in Eurasia, and later in Australia, North America, South America, and the Pacific islands, to a point now where they have reached pretty much every corner of the world. This is a textbook example of an invasive species that has entered into new ecosystems. Not just that the humans were entering into new ecosystems, but they also were changing the ecosystems, more often then not causing a lot of damage on them, leading to the destruction of lot of habitats and extinction of lot of species.
It's a hamstring injury. The hamstrings are the three posterior thigh muscles: semimembranosus, semitendinosus and biceps femoris. All three of them <span>cross the hip and the knee joint and because of it, they help with the knee flexion and hip extension (straightening). </span>