Aflea feeds off the blood of a dog. the flea is able to obtain nutrients from the blood, but the dog can become anemic. what type of relationship is this? a. commensalism b. predator-prey c. mutualism d. parasitism

Jasmine, at 33 months of age, is able to engage in some self-care behaviors but still has trouble with tasks such as putting on socks. a few months later, she accomplishes this same task relatively easily. the change in abilities is most likely due to

Long term exposure to waves can cause sunburns and skin cancer.

Guard cells control which event? the growth of plants capture of solar energy gas exchange in leaves water absorption in roots