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Lyrx [107]
3 years ago
13

NEED HELP ASAP!!! Which of the following describe the role of enzymes in digestion? Select all that apply.

Biology
1 answer:
Len [333]3 years ago
4 0

Answer:

a help break down complex molecule

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How does energy flow in an ecosystem
irakobra [83]

Answer:

  • Energy is passed from organisms at one trophic level or energy level to organisms in the next trophic level. Producers are always the first trophic level, herbivores the second, the carnivores that eat herbivores the third, and so on.

<h2>Hope this helps you !! </h2>

3 0
2 years ago
One g of fecal matter was suspended in 99 ml saline solution (tube 1). After mixing gently but thoroughly, one ml from tube 1 wa
malfutka [58]

Answer: the cfu/g Gram-negative bacteria in the fecal sample is C = 3.0 × 10^3

Explanation:

We know that; Gram negative bacteria looks  pale reddish in color under a light microscope from Gram staining.

therefore

There are 30 red bacterial colonies counted.

1 mL of from tube 1 was removed and added to tube with 99 mL saline (tube 2) dilution is 1/100.

transferred volume  into the plate is 1 mL.

Now, we have to determine the cfu/g Gram-negative bacteria in the fecal sample

Formula to calculate CFU/g bacteria in fecal sample is expressed as;

C = n/(s×d )

where C is concentration (CFU/g) , n is number of colonies , s is volume transferred to plate , d is dilution factor.

so we substitute

C = 30 / ((1/100) × 1)

C = 30 / 0.01

C = 3000

C = 3.0 × 10^3

THERFERE, the cfu/g Gram-negative bacteria in the fecal sample is C = 3.0 × 10^3

3 0
3 years ago
Breeding livestock is graded "superior," "average," and "inferior" on the same traits as slaughter animals. In a 50-word paragra
BaLLatris [955]

Livestock producers and  breeders rank livestock on their ability  to produce high quality, efficient breeding  animals and market-worthy <u>offspring</u>.

To be able to effectively evaluate breeding  and market animals is of vital economic importance for the animal markets. The same traits  used to evaluate <u>high-grade slaughter  animals</u> are also important in the <u>grading </u>of  <u>breeding stock</u>.

When we judge livestock we  classify them as:

  • Superior livestock
  • Average livestock
  • Inferior livestock

We are looking for  the most desirable traits to fit our  particular market and genetic needs. The "Livestock Judging Manual" indicates that some of the most prevalent traits necessary to score a better rating are:

  • <em>Live weight</em>
  • <em>Fat depth</em>
  • Muscling

and many more. The most important of which is muscling given that an animal with more muscle will produce more desirable meat for the average consumer, and therefore can be sold at higher prices.

To learn more visit:

brainly.com/question/17128434?referrer=searchResults

8 0
3 years ago
Scientists have altered the genetic code of some potato plants by inserting genes that make the plants produce an insecticide. W
Lana71 [14]
D. Genetic engineering
4 0
3 years ago
By controlling what enters and leaves a cell, the cell membrane A. aids in maintaining homeostasis within the cell. B. aids in m
Levart [38]
By controlling what enters and leaves a cell, the cell membrane A) aids in maintaining homeostasis within the cell. Homeostasis is the process by which organisms maintain life through eating, growing, and living in variable conditions. It would not make sense to answer B) because organisms do not control the homeostasis of their external environment. D) also would not be correct because cell's do not control osmosis in the external environment. The membrane does not control osmosis because osmosis is generally a random process of molecular diffusion whereas the membrane acts in a conscious and controlled way. 
3 0
3 years ago
Read 2 more answers
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