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devlian [24]
3 years ago
11

What is a biofilm?

Biology
1 answer:
Hoochie [10]3 years ago
5 0

Answer:

A group of bacteria that accumulate in layers and secrete a protective extracellular material. (Option A)

Explanation:

Biofilm is defined as one or more types of microorganisms collectively grow in different places. Organisms that form the biofilm include protests, fungi, and bacteria.

Dental plaque is an example of a biofilm. It is a known buildup of slimy bacteria that forms on the teeth surface. Biofilm can grow on different surfaces such as animal tissues, plant tissues, minerals, metal, etc.

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How do atoms become the complex structures and substances around us
SCORPION-xisa [38]

Atoms are the smallest building blocks of elements having the same chemical and physical properties of that specific element. Atoms combine together with the help of electrons, to form a little more complex entity like the molecules, crystals, liquids etc. Some molecules combine together to form a more complex entity like the DNA which is the most complex molecule. The whole universe is made out of these simple building blocks, including the human body.

4 0
3 years ago
What is the only reasonable and ethical way to achieve zero population growth
dybincka [34]

Answer:

By not having more offspring.

Explanation:

There are many ways of reaching a zero population growth, but some of them are 0% ethical. But, if the population stops having offspring, there won't be a population growth, instead, the population will decrease in number.

  • In 2017 the country with the biggest population was China, and the country with the biggest population growth in that same year was South Sudan, with a 3,83% population growth, according to statista and IndexMundi
  • Currently, in 2019, China still is the country with the biggest population, and, as for the highest population growth this year, we will only be able to say with 100% certainty when the year ends.

Hope it helped,

BiologiaMagister

8 0
3 years ago
A. on which side of the membrane is chloride more concentrated? (base your answer only on the facts given above, rather than on
Vikentia [17]
In a human? Need more context here but should be outside the cell. At equilibrium you will have a more negative environment in the cell.
7 0
2 years ago
A woman consumes 500 grams of carbohydrates, 30 grams of protein, and 75 grams of fat in one day. how many total kcalories has s
DedPeter [7]
To calculate the energy offered from food, multiply the number of grams of protein, carbohydrate, and fat by 4, 4, and 9, respectively.
Then add the results together.

Given: 500 grams of carbohydrates, 30 grams of protein, and 75 grams of fat in one day.

500 grams x 4 kcal/g = 2000 kcal
30 grams x 4 kcal/g = 120 kcal
75 grams x 9 kcal/g = 675 kcal
= 2795 kcal

From this data, you can calculate the percentage of k calories each of the energy nutrients give to the total.
Solution:

2000/2795 * 100% = 72% from carbohydrates
120/2795 * 100% = 4% from protein
675/2795 * 100% = 24% from fat
Total: 100%
6 0
3 years ago
Two veterinary technicians are learning about restraining a ferret. Technician A says when scruffing a ferret, its feet should b
alexandr1967 [171]
From what i know, the feet of an animal should always be on the table. This is due to the fact that aside from health reason's, the animal usually feels more comfortable not on it's back. 
6 0
3 years ago
Read 2 more answers
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