Which of the following is an example of work being done on an object? A.
Water in a pot changes into steam.
B.
A man pushes a couch across the room.
C.
A box rests on the floor.
D.
A prism scatters ultraviolet light into visible light.

Use this diagram of an animal cell to answer the question. where does the first stage of cellular respiration occur? w x y z

What would happen to the nutrients in an ecosystem if decomposers, such as bacteria, didn’t exist there?

Recombinant dna (rdna) creates offspring which are genetically identical to the parent is the process of breeding only organisms with desirable traits involves the removal of the nucleus of a cell combines genes from organisms of different species in a lab