Choose the correct statement that refers to either beneficial or pathogenic microbes: Pathogenic bacteria help hosts utilize food sources, which they are not normally able to use. Beneficial microbes develop a symbiotic relationship with the host and pathogenic microbes do not and cause disease symptoms in the host. All microbes are beneficial but some are considered pathogenic because the host immune system does not recognize it. All microbes are pathogenic but we still tolerate some species without showing disease symptoms.

Beneficial microbes develop a symbiotic relationship with the host and pathogenic microbes do not and cause disease symptoms in the host.

Explanation:

Microbes or microorganisms can be beneficial or pathogenic.

a. Beneficial microorganisms are microorganisms that play an important role in plant growth,

wellbeing and productivity. Beneficial microorganisms ensure that there is availability of nutrients in plants, they provide hormones that ensure the growth of plants.

b. Pathogenic microorganisms are disease causing organisms. Examples include, Salmonella, Escherichia coli, e.t.c

correct answer is a. and d.

ecological efficiency: % of usable energy transferred as

biomass from one trophic level to the next typical is 10% efficient (90% of

energy is lost),is diagramed as the pyramid of energy flow. then osprey eagle

are tertiary consumer and the shrimp are primary consumer, so to balance

mass of shrimp (1/0.1) / 0.1 = 100 kg