Environments are covered with manmade structures like roads, buildings, and sewers. Green spaces such as parks, backyards, and u
ndeveloped lots are scattered in among the developed areas instead of all connected together. Plants and animals have to deal with exposure to toxins from vehicles and loss of habitat and food sources. These are all ways that _______. a. humans have intervened to both manage and manipulate the environment to ensure species survival
b. nonhuman life in an urban ecosystem differs from that in an undeveloped forest ecosystem
c. cities have been developed to keep wildlife out of public areas
d. humans have impacted the environment and caused wildlife species to become domesticated
The answer to this question is: B. <span>nonhuman life in an urban ecosystem differs from that in an undeveloped forest ecosystem. This is sort of self-explanatory in the way that plants and animals in developed areas differ from those in the wild. Hope this helps :) </span><span />
A DNA molecule consists of two stands of nucleotides that wind around each other like a twisted ladder with a phosphate and sugar backbone. The nitrogenous bases are divided into two groups called the pyrimidines and the purines. The pyrimidines include the thymine and cytosine, the purines are adenine and guanine. The nitrogenous bases in the double helix are bound together according to the base pairing rule. Adenine pairs with thymine (A-T) and guanine pairs with cytosine (G-C). The student either drew the base pairing showing adenine and thymine or guanine pairing with cytosine.
It is to help transport macromolecules back and forth between the nucleus and the cytoplasm. the nuclear pore complex also serves as a barrier between the cytoplasm and nucleus to prevent harm to genetic material housed in the nucleus :)
