All categories

3 years ago

In general, when performing spread plates, __________

Biology

1 answer:

zhuklara [117]3 years ago

4 0

Answer:

a) 0.1 mL

b) contamination

c) clumping of colonies

d) Uneven colonies

Explanation:

In general, when performing spread plates, 0.1 mL

mL of cell suspension is added to the plate to prevent the formation of a microbial contamination

Adding more than 1 mL of cell suspension to an agar plate will result in a clumping of colonies.

Adding less than 1 mL of cell suspension to an agar plate will result in a Uneven colonies

You might be interested in

5. What is a Blue Moon?

liraira [26]

Answer:

A blue moon is an additional full moon that appears in a subdivision of a year: either the third of four full moons in a season, or a second full moon in a month of the common calendar

Explanation:

The Moon can turn blue when there’s a certain amount of dust or pollution in the air. The extra dust scatters blue light, making the Moon appear more blue.

3 0

3 years ago

1. An inherited characteristic that allows anorganism to better survive is called a(n)-

leva [86]

Answer:

adaption

Explanation:

5 0

3 years ago

List two species that may be threatened by the construction of a solar power tower

DENIUS [597]

Answer: the question is incomplete,below is the complete question.

List two species that may be threatened by the construction of a solar power tower in the California Desert

The answers are, Desert torties, mountain yellow legged frog and Joshua tree.

Construction of a solar power tower in the California Desert will threaten the existence of Desert torties, mountain yellow legged frog and and Joshua tree.

Explanation: The construction of solar power towers in Mojave desert in California poses a threat to the existence of quite a number of plants.The Mojave desert houses the largest solar power plant in the world,creating the solar power tower will create job opportunities for people but at the same time endangering the existence of about 12 rare plants that are found in the region of which Desert torties, mountain yellow legged frog and Joshua tree are greatly included,these plants cannot co-exist with solar thermal mirror arrays,this brings a controversy between energy/electricity generation and wildlife/ecosystem conservation.

3 0

3 years ago

The structure that separates the cochlear duct from the tympanic duct is the

denis23 [38]

Answer:

the basilar membrane

Explanation:

The tympanic duct or scala tympani is one of the perilymph-filled cavities in the inner ear of humans. It is separated from the cochlear duct by the basilar membrane, and it extends from the round window to the helicotrema, where it continues as vestibular duct.

3 0

2 years ago

In the Kirby-Bauer disk diffusion test, the _______ of the zone of inhibition is measured and used for interpretation.

snow_tiger [21]

Answer:

The correct option is : a. diameter

Explanation:

The Kirby–Bauer test or the disk diffusion test, is a method to determine the antibiotic sensitivity of the given bacteria. This test involves the use of antibiotic discs to determine the effect of antibiotics on the bacteria.

In this test, the wafers having antibiotics and the bacteria are placed on the agar plate and incubated. If the antibiotics present stops the growth of the bacteria, there will be an area around wafer with no bacterial growth, such an area is known as the zone of inhibition.

The diameter of this zone of inhibition is measured to determine the antibiotic sensitivity of the given bacteria.

7 0

3 years ago