1. a valid hypothesis is one that is
1. testable and rejectable
2.proven true
3.verified without external evidence
4.accepted by public opinion

2. which statement is true about recording data?
1.only numbers need to be recorded; other data can be omitted.
2.recorded data may be quantitative or qualitative.
3.data can be altered to allow for acceptance of your hypothesis.
4.as long as you can remember your data, you don’t need to write it down.

3. if a measurement is precise, it is highly repeatable or reproducible. true or false

Which statements about the fluid mosaic structure of a membrane are correct? select the three correct statements.which statements about the fluid mosaic structure of a membrane are correct? select the three correct statements.the framework of a membrane is a bilayer of phospholipids with their hydrophilic heads facing the aqueous environment inside and outside of the cell and their hydrophobic tails clustered in the center.because membranes are fluid, membrane proteins and phospholipids can drift about in the membrane.the diverse proteins found in and attached to membranes perform many important functions.the kinky tails of some proteins keep the membrane fluid by preventing the component molecules from packing solidly together.membranes include a mosaic, or mix, of carbohydrates embedded in a phospholipid bilayer.

At which point is crust neither created nor destroyed? island chain mid-ocean ridge divergent boundary transform boundary

Do plant cells perform cellular respiration?