Which of the following true statements best supports the endosymbiotic theory?
select one:
a. all mitochondria have circular dna.
b. all eukaryotic cells have ribosomes.
c. all eukaryotic cells have dna.
d. all mitochondria function as powerhouses to the cell.

Which statement correctly identifies the scientific question and describes why the question is scientific? question 1 refers to the supernatural.question 2 reflects a moral or social value.question 3 refers to something that can be measured.question 4 reflects a question that can’t be observed.

Drag each description to the correct location on the image. not all descriptions will be used. describe the parts of a comet. the frozen part of the comet the atmosphere of gases and dust formed when the nucleus vaporizes tail made of small, solid dust particles tail made of ions that appears to point away from the comet's orbit

These are the components of the reservoirs of carbon that are exchanged in our environment.