PLEASE HELP, HURRY. What structure is found in prokaryotic cells, but not eukaryotic cells?

a.) A single, circular DNA chromosome found in the cytoplasm.

b.) A chromosome that contains many histones.

c.) A chromosome found within the membrane-bound nucleus.

d.) A shorter, condoned chromosome in the nucleus. ​

Acladogram is a branching diagram that represents suggested evolutionary relationships among organisms based on the presence of unique traits. a scientist discovers a new organism that lacks limbs and does not have a true backbone. the organism lays eggs to produce offspring and has a cartilage-like rod known as a notochord running along its dorsal surface. on the cladogram below, select the species to which the newly discovered organism is most closely related.

Identify the type of energy used in each action. the flexing of an arm muscle: a signal transduction process by a neuron: a ball at the top of a hill: 1. electrical energy 2. mechanical energy 3. gravitational potential energy

Cells are adapted to preform specific functions. which of the following terms refers to this capability?