Answer: Bonds between atoms break and new bonds form.
Explanation:
Bonds between atoms break and new bonds form. Chemical reaction is the rearrangement of atoms to form new substances. The bonds in the reactants first break so that atoms may be free to rearrange and form new bonds resulting in the products.
Was inspired by real life experiences.
Answer:
C
Explanation:
Positive natural selection, or the tendency of beneficial traits to increase in prevalence (frequency) in a population, is the driving force behind adaptive evolution. ... At the molecular level, selection occurs when a particular DNA variant becomes more common because of its effect on the organisms that carry it.
The correct statement is that the whale carcass dissociates down over time as different communities of organisms will feed on the whale for months.
An ecological succession includes an array of modifications in the biotic community with regard to the variations in the non-living elements like availability of sunlight, water, and other elements along with time, unless and until stability is attained by the ecosystem.
When a whale carcass sinks to the floor of the ocean it develops an environment suitable for succession to take place as an ocean floor possess low biological activity prior of the sinking of the carcass into the ocean floor, and as the carcass sinks it achieves high biological activity. Various scavenger organisms and a range of decomposers can feed on the carcass. This will lead to an upsurge in the number of these feeding organisms. Hence, it can be stated that the whale has started the process of succession in the previously less active ocean floor.
Answer:
The thermal energy of the Earth remains from its formation and is continuously generated from radioactive decay of long-lived radionuclides in the Earths interior. The deeper the Earth layers the higher the temperature with the geothermal gradient of temperatures through the Earth’s crust on average as high as 25–30°C/km.
Explanation:
