A small number of genes in the unnamed virus appear similar to hepatitis C virus. When doctors expose animals that had been injected with a hepatitis C vaccine to the unnamed virus, their blood shows a strong immune reaction to the unnamed virus (using a latex agglutination test). The blood of unvaccinated animals shows no reaction to the same test. What does this suggest about the shared genes?

Populations of blue-winged warblers, a type of bird, migrate south in the winter and return to canadian breeding grounds in the spring. as global temperatures have increased due to climate change, spring has started arriving in the warbler's breeding grounds earlier in the year, before the warblers return. warblers now arrive at their breeding grounds too late to select ideal nesting sites and to feed on important early-spring food sources how are populations of blue-winged warblers most likely to be affected by the earlier arrival of spring? o a. populations will go extinct since the warblers will stop migrating to breeding grounds. b. populations will be unaffected since most species can quickly adapt to effects of climate change. c. populations will increase since warmer temperatures are generally beneficial to survival, d. populations will decline since individuals will be less likely to successfully reproduce, reset next

The chromosomal structure that limits the number of cell divisions of a cell is the the chromosomal structure that limits the number of cell divisions of a cell is the kinetochore telomere histones centromere

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?