Your question is rather unclear but from what I can tell either there were not an even amount of Petri dishes or some of them were left open while others were not.
Answer:
Infectious diseases are caused by pathogens, which include bacteria, fungi, protozoa, worms, viruses, and even infectious proteins called prions. Pathogens of all classes must have mechanisms for entering their host and for evading immediate destruction by the host immune system. Most bacteria are not pathogenic.
Explanation:
Answer:
B
Explanation:
<u>The correct statement to be inferred from the information would be that all eukaryotic cells need to produce energy</u>.
<em>The mitochondrion is an organelle that is referred to as the powerhouse of the cell. It is the site of oxidative phosphorylation where the energy for the cell's metabolic processes is generated. Hence, if all eukaryotic cells have mitochondrion, it means that they all need to produce energy for their metabolic activities.</em>
The correct option is B.
Answer: C
Explanation: Water is a polar molecule because the electrons of the hydrogen atoms get "pulled" towards the electrons of the oxygen atom. Which is both positive and negative on opposite ends.
It could be B as well but, I believe it's C
NOUN
the natural coloring matter of animal or plant tissue.
VERB
(pigmented)
color (something) with or as if with pigment.
"pigmented areas such as freckles"
