Choose all the answers that apply.

The cell membrane

is made of phospholipids

is a single layer

is embedded with proteins

controls the transfer of materials into and out of the cell

does not exist in plant cells

What is the input of a flashlight

How are weathering and erosion similar?

Who was John Dalton? A. A schoolteacher who published ideas about the atom B. The scientist who discovered the electron C. The physicist who came up with the oil-drop experiment D. A physicist who studied the nucleus of the atom

Which value gives the number of particles in 1 mol of a substance?

When a sample is heated water is observed at the top of the tube. The compound melts and changes color. Te residue is not entirely soluble. It is most likely Select one: a. a carbohydrate b. a hydrate c. efflorescent d. deliquescent

Which statement describe how the bond between two oxygen bond atoms is formed?

The bonds in the compound MgSO4 can be described as A. ionic, only B. covalent, only C. both ionic and covalent D. neither ionic nor covalent

If The mass of a box is increased and the force stay the same, determine the relationship with acceleration

A balloon contains 0.15 moles of co2 gas. how many molecules of co2 are in the balloon?

Acids A) are generally proton donors B) produce H + ions in solution C) are electron pair acceptors D) may include all of these characteristics