A cells relatively constant internal physical and chemical conditions are called

Additional compounds can be added to agar before sterilization (or sometimes after). an example of this is "milk agar," in which

Marat540 [252]

The lactose-digesting bacteria like to grow on milk agar .Bacillus cereus growth and survival were examined during the production of cheese of the Gouda variety. Approximately 102 B. cereus spores per milliliter of cheese milk were intentionally added to pasteurized milk before it was used to make the cheese in the pilot plant.

"milk agar," in which 2% nonfat powdered milk is added to the agar base. lactose-digesting bacteria like to grow on milk agar. Surface plating on B. cereus selective medium was used to count B. cereus, while lactic acid bacteria were counted on lactic agar and MRS agar (de Man-Rogosa-Sharpe). Samples of the milk before renneting, the curd at cutting, the half-whey removal, the final whey removal, the hooping of the curd, the cheese after pressing, the cheese after brining, after one week, after two weeks, after four weeks, and after six weeks were all taken for microbiological analysis. The growth of lactic acid bacteria during cheese production was unaffected by B. cereus.

Learn more about B. cereus here-

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3 0

1 year ago

How to fix Anterior Pelvic Tilt?

marin [14]

Assessing flexibility, strength and movement patterns is therefore always a good idea.
1) Lying Pelvic Tilt
2) Standing Pelvic Tilt (SPT)
3) Learn and Ingrain the Hip Hinge Pattern
4) Strengthen the Posterior Pelvic Tilt Movement Pattern/Muscles that Produce Posterior Pelvic Tilt
5) Incorporate squats, deadlifts, presses, and other compound lifts with good technique

7 0

2 years ago

A mother is nursing her infant. Of the 20 amino acids that exist, 9 would be considered essential for the mother. How many amino

luda_lava [24]

Answer:

10

Explanation:

Proteins are polymers of amino acids. 20 different amino acids are present in various combinations in different proteins. Humans are incapable of synthesizing some amino acids. These are called the essential amino acids as they must be provided in the diet.

Histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine are the nine amino acids that are not synthesized in the body of adult humans and therefore, are categorized as essential ones. Arginine is a non-essential amino acid for adult humans but is essential for adult humans. Therefore, for an infant, more than 9 amino acids are essential ones.

6 0

2 years ago

A forest habitat is home to a certain population of squirrels. Some of the squirrels

Sergio [31]

Just use quiz lit and it’ll give you all the answers have a great day

5 0

3 years ago

This Roman snail, this cuttlefish, and this mussel have similarities and differences in their body structures. What does the inf

Angelina_Jolie [31]

Complete question:

This Roman snail, this cuttlefish, and this mussel have similarities and

differences in their body structures. What does the information about these

structures tell you about the ancestors of these species?

a) None share an ancestor population because different species cannot share an ancestor population. It is a coincidence that these species have some of the same body structures.

b) The Roman snail and the cuttlefish share an ancestor population, but they must not share an ancestor with mussels because mussels have no radula.

c) All three species share an ancestor population, but Roman snails and

cuttlefish share a more recent ancestor population. This is why they share

the radula structure.

d) We cannot make observations of ancestor populations from the past. It is

impossible to explain ancestors with only the information about the body

structures of different species.

Answer:

The correct answer is option C. All three species share an ancestor population, but Roman snails and cuttlefish share a more recent ancestor population. This is why they share the radula structure.

Explanation:

The three species belong to the mollusk phylum, and to the placophore group.

Each of them belongs to a different class.

The Roman snail belongs to the Gasteropod class,
The cuttlefish belongs to the Cephalopod class,
The mussel belongs to the Bivalve class.

The tree classes share a common ancestor from which all the placophores evolved. Among them, we can mention the monoplacophore, gasteropod, cephalopod, bivalve, and scaphopods. Three branches diverged from this common ancestor. The first one originated the monoplacophore. The second one originated the common ancestor of gastropods and cephalopods. And the third one originated the common ancestor of bivalves and scaphopods. The tree-mentioned species inherited the mantle and the radula from their foreign common ancestor. But later in time, individuals that originated bivalves lost the radulla. This is why the three species have a mantle, but only gastropods and cephalopods have a radula. When each of these classes evolved, they developed their own traits,

Gastropods → muscular foot used for moving
Cephalopods → pallial cavity for swimming
Bivalves → byssal threads to attach to the rocks

You will find an image in the attached files that will help you understand this explanation.

7 0

2 years ago