Answer the following question given this paragraph: Bacteria are the most abundant living things on Earth. They live in almost all environments. They are found in the air, ocean, soil, and intestines of animals. They are even found in rocks deep below Earth's surface. Any surface that has not been sterilized is likely to be covered with bacteria. The total number of bacteria in the world is amazing. It's estimated to be about 5 million trillion trillion. If you write that number in digits, it has 30 zeroes!. Q: What is the most abundant living thing on earth that can be found in almost any environment? Choices: - pests - viruses - pathogens - bacteria A:
bacteria
(Question)
Answer the following question given this paragraph: Q: What serves to replace nonreproducing specialized cells as needed in the adult body? Choices: - osteoclast cells - monocyte cells - dendritic cells - stem cells A:
(Answer)
stem cells
Ques: Answer the following question given this paragraph: Q: Name two candidates for the original sources of viral genomes. Choices: - ediacara and transposons - chloroplasts and transposons - macrophages and transposons - plasmids and transposons A:
Ans: plasmids and transposons
(Q).
Answer the following question given this paragraph: Population density is an average measure. Often, individuals in a population are not spread out evenly. Instead, they may live in clumps or some other pattern. How individuals in a population are distributed, or spread throughout their area, is called population distribution. You can see different patterns of population distribution in Figure below . Different patterns characterize different species and types of environments, as you can read in the figure. Q: Which measure shows how individuals in a population are distributed, or spread throughout their area? Choices: - geographical distribution - population phase - proportional distribution - population distribution A:
(A).
population distribution
Ques:Answer the following question given this paragraph: Opaque matter is matter that does not let any light pass through it. Matter may be opaque because it absorbs light, reflects light, or does both. Examples of opaque objects are solid wooden doors and glass mirrors. A wooden door absorbs most of the light that strikes it and reflects just a few wavelengths of visible light. A mirror, which is a sheet of glass with a shiny metal coating on the back, reflects all the light that strikes it. Q: What is the term for matter that does not let any light pass through it, whether it absorbs light, reflects light, or does both? Choices: - devoid - obscene - artificial - opaque A:

Ans:opaque
Answer the following question given this paragraph: The word principle can be defined as "a fundamental truth or proposition that serves as the foundation for a system of belief or behavior or for a chain of reasoning. " A principle of biology is a fundamental concept that is just as true for a bee or a sunflower as it is for us. All life, including that sunflower and bee, is made of at least one cell. The traits of a particular organism are embedded within its genes, that organism must maintain homeostasis to survive, and that organism has evolved from previously existing species. Q: A _______ of biology is a fundamental concept that is just as true for a bee or a sunflower as it is for us. Choices: - hypothesis - theory - notion - principle A:
principle