B. The Threshold describes the minimum level of stimulus required to ctive a neuron. Hope that helps
The main function of white blood cells is to help protect the human body from infection as well as other foreign materials. White blood cells are also known as leukocytes, and they develop in bone marrow from stem cells. There are five different types of white blood cells<span>, including neutrophils, lymphocytes, monocytes, eosinophils and basophils.</span>
In what organisms are you referring to?
Answer:
I think 1 = having waxy leaves and 4 = having roots that grow above ground
Explanation:
Not Sure how to explain.
Its false because lobsters have swimmerets as well and they dont use them only for swimming
