Four friends were talking about how matter and energy move through an ecosystem. This
is what they said:

Morrie: "I think only energy cycles through
an ecosystem

Feliciar "I think only matter cycles through
an ecosystem

Stefano: "I think both matter and energy
cycle through an ecosystem.

Lincoln: "I think neither matter nor energy
cycles through an ecosystem

Which friend do you most agree with?
Explain your
Thinking

Color blindness is a recessive trait. the gene for color blindness is on the x chromosome. the family tree below shows the trait of color blindness. the only unknown is the mother in the first generation

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

Leila has dimples because she received a gene copy from her father that coded for dimples. this means that dimples are an example of a trait that is