An astronomical unit is
the mass of the sun
10 light-years
the distance from earth to the sun
the diameter of the earth

according to newton's 3rd law of motion, if you hit a baseball with a bat it will
hurt your hand from the reaction force
accelerate according to the applied force
fly in a straight line unless an outside force changes its course
fall to the ground because of gravitational pull

the pull of the moon on earth's tidal bulge is causing
the earth to gradually rotate faster
the earth to slowly expand in size
the earth to rotate slightly slower
the moon to move closer to earth

Deer cave cannot support photosynthesis is as not enough sunlight is present. in spite of this, it still has a complex food chain. what is the energy foundation of this food chain?

What is the name of the type of cell division that occurs in the prokaryotic cell cycle

Refer to this portion of a dichotomous key for fish identification to answer the question. 1. (a) has a single dorsal fin ® 5 (b) has a double dorsal fin ® 2 2. (a) one fin is spiny, the other is smooth ® 3 (b) one fin is not spiny or smooth ® 4 5. (a) has small fin on back near tail ® 6 (b) has no fin on back near tail ® 7 6. (a) has barbs near the mouth ® catfish (b) does not have barbs near the mouth ® 10 7. (a) tail is asymmetrical ® 8 (b) tail is symmetrical ® 9 10. (a) scales are small ® trout (b) scales are large ® whitefish what is the next step to complete to identify a fish that has a single dorsal fin, no fin on the back near the tail, and no barbs near the mouth? step 2 step 5 step 7 step 10