- 2y+7y-4-5 How do I do this problem

We are studying 3 strains of bacteria, with populations p1, p2, p3, in an environment with three food sources, A, B, C. In a day

Nastasia [14]

Answer:

The population of each bacteria in 1, 2, 3 are 12, 8, and 7 respectively.

Explanation:

From the given information:

For food source A; we have:

3P₁ + P₂ + 2P₃ = 58 units of food A ---- (1)

For food source B; we have:

2P₁ + 4P₂ + 2P₃ = 70 units of food B ---- (2)

For food source C; we have:

P₁ + P₂ = 20 units of food C ----- (3)

From equation (1) and (2); we have:

3P₁ + P₂ + 2P₃ = 58

2P₁ + 4P₂ + 2P₃ = 70

By elimination method

3P₁ + P₂ + 2P₃ = 58

-

2P₁ + 4P₂ + 2P₃ = 70

P₁ - 3P₂ + 0 = - 12

P₁ = -12 + 3P₂ ---- (4)

Replace, the value of P₁ in (4) into equation (3)

P₁ + P₂ = 20

-12 + 3P₂ + P₂ = 20

4P₂ = 20 + 12

4P₂ = 32

P₂ = 32/4

P₂ = 8

From equation (3) again;

P₁ + P₂ = 20

P₁ + 8 = 20

P₁ = 20 - 8

P₁ = 12

To find P₃; replace the value of P₁ and P₂ into (1)

3P₁ + P₂ + 2P₃ = 58

3(12) + 8 + 2P₃ = 58

36 + 8 + 2P₃ = 58

2P₃ = 58 - 36 -8

2P₃ = 14

P₃ = 14/2

P₃ = 7

Thus, the population of each bacteria in 1, 2, 3 are 12, 8, and 7 respectively.

4 0

2 years ago

Who is most likely to initially detect a possible biological attack? nurse neighbor teacher firefighter

juin [17]

Nurse

It is known that triage nurses frequently treat patients who seek medical attention first, making them the ones who are most likely to notice the early signs of a potential biological attack.

Both an art and a science, a heart and a mind, can be said to be involved in nursing. Its core values include a basic regard for human dignity and an awareness of the requirements of the patient.

The mind provides assistance for this in the form of strong core education. Each nurse will have distinct talents, passions, and expertise because of the wide variety of specializations and complicated abilities required in the nursing practice.

Here's another question with an answer related to nurses:

brainly.com/question/14612149

#SPJ4

5 0

1 year ago

What is a young, anucleate erythrocyte called?

VARVARA [1.3K]

The right answer is reticulocyte.

The reticulocyte is the cell preceding the erythrocyte stage in erythropoiesis. He is almost like her.

Reticulocytes are young red blood cells that still have ribosomes and mitochondria, but no peroxisomes. They are therefore capable of a fairly intense metabolism and they still actively synthesize hemoglobin.

7 0

3 years ago

How does the theory of endosymbiosis differ from the autogenous and horizontal gene transfer theories in explaining the evolutio

Llana [10]

<h3>Answer and Explanation;</h3>

Endosymbiotic theory explains the origin of chloroplasts and mitochondria and their double membrane. Mitochondria of eukaryotes evolved from aerobic bacteria living within their host cell and the chloroplasts of eukaryotes evolved from endosymbiotic cyanobacteria.
On the other hand according to the autogenous hypothesis, mitochondria and chloroplasts have evolved within the protoeukaryote cell by compartmentalizing plasmids or vesicles of DNA within a pinched off invagination of the cell membrane.

Endosymbiont theory is the theory that suggests that simple prokaryotic cells were engulfed by larger prokaryotes 1.5 billion years ago.
Autogenous theory is a theory that was proposed as an alternative to endosymbiont theory. proposes that eukaryotic organelles formed by infolding of the plasma membrane.
Horizontal gene transfer theory is an alternative to endosymbiont and autogenous theories for the origin of complex organelles in eukaryotes.

6 0

2 years ago

You observe two female fish of the same species breeding.

Alisiya [41]

Answer:

The eggs from the female laying 1000 eggs have larger yolks than the eggs from the female laying 100 eggs.

Explanation:

Fitness trade off is the relationship between two factors namely size and reproduction, survival and reproduction,quality and quantity of the eggs etc.

The size, weight and number of eggs depend on the fitness of the fish. The traits present in the fish plays a key role in the fitness trade off.

Also the fertility/fecundity is a factor of the trait/allele.

5 0

3 years ago