Choose the correct
thrombocytes:
a) are the smallest blood cells
b) prevent blood loss
c) are involved in allergic reactions
d) have a multi-lobed nucleus

19. scientists use meteorites that hit earth to provide evidence of the composition of earth's interior because they hypothesize that

Hummingbirds drink nectar from flowers, while robins eat plant seeds. what does this reduce?

Select the situation bellow that would produce a total displacement of zero. a. a trip to the moon and then to mars b. a horse galloping from one end of a field to another c. the criss-crossing path of a bug as it flies from flower to flower d.a round-trip ride to school and back