The correct answer is the spray zone.
The upper littoral, also known as the spray zone, or the splash zone. This region is dry for the majority of the time, however, gets sprayed with salt water at the time of high tides. It is only flooded at the time of extreme high tides and storms. The species in this scarce habitat comprise isopods, barnacles, limpets, lichens, lice, whelks, and periwinkles.
Pretty sure the realistic answer is A. They had traits that helped them adapt the environmental changes
Observations
The first observation is overproduction. This means all species produce more offspring than will survive to become adults. Think of all the thousands of fish eggs produced each year. This means populations of species should be getting larger all the time, but they aren't, because there are mechanisms in place to curb population explosions, such as competition for food, predation, and disease. From this, Darwin was able to make a deduction: there is a struggle for existence. Many of those fish eggs are food for predators, who would not survive without them.
Darwin's second observation was variation. This means members of the same species show variation in characteristics. For example, zebras show variation in pattern and color of their stripes. Goldfish have gold scales, orange scales, or brown scales, or a mixture of all three.
Variation applies to all traits, even those essential for the survival of the individual organism. An eagle depends on excellent eyesight to locate prey, but it can still be born shortsighted. This means that variations are random and are not specific to any favorable adaptation.
The next observation, selection , means organisms that survive are more likely to reproduce and pass on favorable adaptations to their offspring than those with unfavorable adaptations. For example, height is an inheritable characteristic, and for the giraffe, having long necks (which added to their height) was reproductively advantageous. The taller giraffes were able to reach leaves in tall trees, which kept them alive longer, and able to reproduce, making them more reproductively fit than shorter giraffes who couldn't reach those leaves and died without reproducing.
The last observation Darwin made wasadaptation . This means that some traits are passed on to new generations and become common within the population, like the long neck of the giraffe. This doesn't happen overnight, it takes time for these traits to spread throughout a population.
So, what does this mean for natural selection and genetic diversity? Let's find out.
Answer:
Carbon-Carbon bond is not considered as a noncovalent interaction because electrons are shared between the two carbons forming a strong covalent bond.
Explanation:
Non covalent interactions does not involve sharing of electrons rather it involves dispersed variation of electromagnetic interactions between the molecules.
Examples include;
Hydrogen bond- in order to be formed the donor Atom has to be electronegative
Ionic interactions- These are attractions between two oppositely charged ions
Van der waals- It is formed due to small , transient asymmetric electron distribution around atoms
