Biology, 27.07.2019 23:30 mayahgrimes
What elements has the same number of valence electrons as aluminum
Answers: 1
Biology, 22.06.2019 22:10
Red blood cells are responsible for transporting oxygen in the blood. people with sickle cell anemia were born with a defective gene that results in sickle-shaped red blood cells. individuals with the disease often suffer pain in their extremities due to the build-up of these cells causing blockages in the blood vessels. the shape of the blood cells also reduces the amount of oxygen transported in the blood.
Answers: 1
Biology, 23.06.2019 01:10
Apopulation of bears has genetic diversity. some of the bears have an allele that gives them thicker fur. due to climate change, the winters have gotten colder in their habitat. now the bears with thicker fur are becoming more common in the population. a.) which type of bear is selected for in the coldest ecosystem? b.) what must be the other allele for the type of fur, and what term would you use to describe the fact that the allele is becoming less common in the colder climate? c.) describe the change in the bear population in terms of changing allele frequencies and phenotypes d.) is this an example of natural selection
Answers: 2
Biology, 23.06.2019 02:00
The footprints of a dinosaur and the burrow of an ancient shrimp are examples of which kind f fossils
Answers: 3
What elements has the same number of valence electrons as aluminum...
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