HELP!! DUE IN 30 min! What causes a new trait to appear in an organism? 1.) all of an organisms DNA changes due to exposure to an event (this is a genetic mutation). 2.) a genetic mutation occurs in the sperm or egg cell of an organism and that mutation is passed to the offspring. 3.) an organism realizes that it needs to change and adapt to to its environment otherwise it will not survive. 4.) an organism learns from other species on ways that it can better survive in its environment.

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.

Is there any solid scientific evidence that humans have been cloned?

Which anatomical plane is the only one that could not show both the sternal region and vertebral region