KSA Science

Which is the structure that we can't find in animal cells?

• Mitochondria

• Nucleus

• Cell membrane

• Cell wall

Tags

NGSS.MS-LS1-1

When the weight increases the friction will

• decrease

• increase

• stay the same

Barnacle/Whale

Barnacles create home sites by attaching themselves to whales. As the barnacle is a filter feeder, it also gets access to more water (and more food) due to the relationship. The whale is unaffected.

• Parasitism

• Commensalism

• Mutualism

• Predator and prey

You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?

• 10 N

• 20 N

• 60 N

• 0 N

Tags

NGSS.MS-PS2-2

How will this object move?

• 20 N to the right

• 20 N to the left

• 80 N to the right

• 80 N to the left

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Explain how does the weight of an object affects the magnitude of the friction of a surface.

Tags

NGSS.MS-PS2-2

Which of the following statements is false?

• Friction can only slow things down

• Friction can stop things from moving

• Friction can only increase the speed

A wrasse fish feeds on the parasites found on the black sea bass's body. Both species benefit.

• Mutualism

• Commensalism

• Parasitism

Tags

NGSS.MS-LS2-2

In an unbalanced forces situation, you will observe all of these characteristics EXCEPT

• Motion

• A net force bigger than 0

• A net force equal 0

• Change in the speed

Tags

NGSS.MS-PS2-2

What organelle contains your genes?

• DNA

• Genomes

• Proteins

• Alleles

Tags

NGSS.MS-LS3-1