Answer:
Walking pneumonia can be caused by the microbes <u>mycoplasma pneumoniae</u> and <u>chlamydophila pneumoniae.</u>
Explanation:
Atypical pneumonia, commonly known as walking pneumonia, is a type of pneumonia which is not caused by a single pathogen or a single type of pathogen. The organisms that cause walking pneumonia are called atypical organisms. Therefore, disease can be caused by special bacteria, fungi, viruses and protozoa.
Examples of atypical organisms include: <u>chlamydophila pneumoniae</u>, chlamydophila psittaci, francisella tularensis, <u>mycoplasma pneumoniae</u>, etc.
<u>Therefore, Walking pneumonia can be caused by the microbes </u><u>mycoplasma pneumoniae</u><u> and </u><u>chlamydophila pneumoniae</u><u>.</u>
What happens to the population density and competition if the birth rate decreases?
The birth rate would increase is the population density competition increased.
Hope I helped.
Answer: The correct answer is black because the product of its side and mass is lower.
Explanation: Density of a substance is defined as the mount of matter that can be stored in a given volume.
Mathematically,

As, density is inversely proportional to the volume of the substance.
The substance will be more denser if it has less volume and it will be less denser if the volume is more.
We are given two cubes having different sides.
Volume of the cube is calculated by using the formula:

where, a = side of the cube.
Black: The side of this cube is 2 and volume will be =
Yellow: The side of this cube is 3 and volume will be =
As, the volume of black cube is less. So, this cube will be more denser.
Density of black cube: 
Density of Yellow Cube: 
Hence, black cube will be more denser because the product of its side and mass is lower.
A. Order, Arrangement, world and Universe