The moons of Mars, Phobos and Deimos, are so small that they play no stabilising role on the rotational axis. There have been very big variations in the rotational axis of Mars.火星、火卫一和火卫二的卫星都太小了，它们在转轴上起不到稳定作用。火星的转轴有很大的变化。What's more, this rotati...
And when environments become more complex, as tends to happen over time, those earlier adaptations, those variations, become the basis of yet other combinations and variations, and lead to ever more diverse and complex forms of life. So from fewer, simpler and relatively similar forms of life ...
not created separately, but instead, species were derived from one another. In other words, the evolution of species creates many variations among creatures, and this is because all of those species came from a common ancestor, and characteristics changed to increase the species chance of survival...
Another mode of protection against antibiotics is the presence of special bacterial cells known as "persisters." Such bacteria do not divide and are resistant to many antibiotics. According to a2010 articlepublished in the journal Cold Spring Harbor Perspectives in Biology, "persisters" function by ...
No, there are genetic variations within a species, but they share a majority of their DNA. 5 How do scientists determine if organisms belong to the same species? Organisms that can interbreed and produce fertile offspring are typically considered the same species. 5 Are species fixed or can th...
What are the types of deviant behavior? What is ethical behavior? What is cultural identity theory? What role(s) do epigenetics play in pharmacologic action? What are the genetic variations in social decision making? What is an evolutionary approach? Can you give an example?
In addition to the generic cellular interactions of the virus, there are extensive polymorphisms in humans (e.g. Lewis, HLA, etc.), some distributed within most or all populations, some restricted to specific ethnic populations, and these variations pose additional opportunities for/constraints on ...
What is Biodiversity? People are pretty diverse. There are all sorts of languages, body types, places we live and so on. Plants and animals are even more diverse with respect to their numbers, shapes, genetic variations and natural environments. This is what we mean when we talk aboutbiodive...
Various factors are known to influence the climate, including ocean currents, surface albedo, greenhouse gases, variations in the solar luminosity, and changes to the planet's orbit. Based on historical records, the Earth is known to have undergone drastic climate changes in the past, including ...
What are the genetic variations in social decision making? Being overweight in early childhood has been linked to the early onset of puberty. Why is this? What biological factors correlate with the negativity bias? Which of the following is not a key factor in the biologic...