Speciation is the formation of new species. Speciation can occur when a population of same species are separated by physical barrier leading to
evolution of new species. How does speciation impact ecosystem
biodiversity?
O
It decreases the biodiversity by decreasing the amount of useable
space
Speciation will increase biodiversity by increasing the number of
species in that ecosystem
Biodiversity remains unchanged since the original species has gone
extinct
Biodiversity remains unchanged because the number of individuals
remains the same

If a cell's main function is to produce proteins to be excreted, which organelles would you expect to be larger

Awoman whose sister tested positive for a specific mutation in the brca1 gene, which increases the risk for breast and ovarian cancer, is found not to have that mutation but does have a mutation of unknown significance near the known mutation site. how should this woman be counseled? select one: a. she should be informed that her risk for breast cancer is greater than the general population but not as great as her sister’s risk. b. she should be informed that because she does not have the mutation, her risk for breast cancer is not greater than that of the general population. c. she should be informed of her gene mutation status and be presented with all the available prophylaxis options and reconstruction options. d. she should be informed that she does not have the specific mutation but that because another mutation is present she should be vigilant about screening

Body temperature is tightly regulated in mammals for example when external temperatures drop too much the body of a mammal responds by in order to its core temperature?