Free points if you answer this

IV= mass of hummingbird

> IV goes on x-axis (hortizontal)

> what is controlled/manipulated

DV= wing beats per second

> DV goes on y-axis

> is dependent on the mass of the hummingbird (y is dependent on change in x)

> what is measured by the experimenter

intuitively this makes sense as larger animals typically move slower (takes more energy to move)... as the size of hummingbird increases, there are less wing beats per second

o i uh suck at math sorry

Explanation:

d

explanation:

i think the answer is d. but im not sure!

the simple machine has three main features. they are:

fulcrum is the center point or pivot point of the machine. effort is input force/ applied force. load is external force/ output.

the keisha 's machine labels are

x : load

y: fulcrum

z: lever