Biology Middle School

Please give the correct answer

Answers

Answer 1

Answer:

Explanation:

Answer 2

The answer is D I think :)

Related Questions

What makes elements and compounds different from mixtures? Elements and compounds-

a). have a constant composition
b). are made of gases
c). will not change when heated
d). conduct electric current

Answers

Answer:

a). have a constant composition

Explanation:

Let's take water, a compound, as an example. Regardless of how much water you have, there will be one oxygen molecule every two hydrogen molecules. It has a constant composition. The same case is with elements. You'll have a constant amount of atoms per mole. Meanwhile, in mixtures, the composition of everything mixed together is not constant as it is not equal everytime.

Besides, the rest of the choices do not even make sense in the first place...

Based on the structures of each type, which cell do you think can perform more functions: Human cells or bacterial cells?

Answers

i think it is bacterial cells

Answer: Human Cells

Explanation: Humans cells are composed of eukaryote cells. Each organelle in a eukaryote has a distinct function. Because of their complex level of organization, eukaryotic cells can carry out many more functions than prokaryotic cells. To summarize it is human cells.

write a mini-essay about Balanced & Unbalanced Forces

Answers

Answer:

Forces acting on an object can be balanced or unbalanced.

Forces have a magnitude (strength) and a direction. Forces can be represented as arrows with the length of the arrow representing the magnitude of the force and the head of the arrow pointing in the direction of the force. Using such arrows, the resulting force (net force) and direction can be determined. Forces acting on an object can be balanced or unbalanced. Balanced forces will cause no change in the speed of an object.

Balanced forces acting on an object in opposite directions and equal in strength, as shown in the arrows below, do not cause a change in the speed of a moving object.
Objects that are not moving will not start moving if acted on by balanced forces.
For example, in arm wrestling where there is no winner, the force exerted by each person is equal, but they are pushing in opposite directions. The resulting force (net force) is zero. Or, in a tug of war, if there is no movement in the rope, the two teams are exerting equal, but opposite forces that are balanced. Again, the resulting force (net force) is zero. Unbalanced forces are not equal, and they always cause the motion of an object to change the speed and/or direction that it is moving. When two unbalanced forces are exerted in opposite directions, their combined force is equal to the difference between the two forces.
The magnitude and direction of the net force affects the resulting motion
This combined force is exerted in the direction of the larger force
For example, if two students push on opposite sides of a box sitting on the floor, the student on the left pushes with less force (small arrow) on the box than the student on the right side of the box (long arrow).
The resulting action (net force: smaller arrow to the right of the = shows that the box will change its motion in the direction of the greater force as shown below:

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