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tangare [24]
3 years ago
9

Which could best be used to explain why bacteria can infect a person very quickly? outer capsule binary fission protective cover

ing genetic recombination
Biology
2 answers:
Nikolay [14]3 years ago
7 0

Answer:Binary Fission

Explanation:

Softa [21]3 years ago
6 0

Answer:

genetic recombination

Explanation:

Bacteria and other harmful organisms like viruses infect people rapidly with genetic recombination.

Hope it helps.

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Why are some bacteria referred to as indicator microorganisms in ascertaining microbial quality control of products?
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Answer:

Some bacteria are used as indicators because if they are present in the product, we can say that it is a product with the presence of pathogens that will cause diseases. Some of them are: total coliforms, fecal coliforms and enterococci.

To be a good indicator they must have a correlation with the pathogens and be more abundant than them. Its presence in a food indicates the possible presence  simultaneous pathogen microorganisms. For example, E. coli has been used as  Index of possible presence of pathogens of enteric origin in water and food

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What do Virginia watershed programs do? Check all that apply.
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a,d,e

Explanation:

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At which stage shown below does the frog use both skin and lungs for gas exchange
a_sh-v [17]

Frogs, like salamanders, newts and toads, are amphibians. Most amphibians begin their life cycles as water-dwelling animals, complete with gills for breathing underwater. As they grow to adulthood, amphibians normally become land-dwelling creatures, lose their gills and develop lungs for breathing. Frogs are no exception to this process and are able to breathe through their lungs once they reach adulthood.

Larval Stage

Frogs still in the larval stage, called tadpoles, are very different in outward appearance and internal physiology from their adult counterparts. Most notable is the presence of gills instead of lungs during this stage. Tadpoles can also take in oxygen through their skin, a trait that aids in gas exchange (bringing in oxygen and expelling carbon dioxide, as with lung respiration) while the tadpole is living completely underwater.

Maturation

As a frog matures from tadpole to adult, it loses its gills and develops functioning lungs. During this transition, and after maturity, frogs are still able to breathe through their skin. This trait is known as “bimodal breathing,” in which an animal uses two different systems for bringing in oxygen. These two different breathing systems allow adult frogs to shift between aquatic habitats (which require skin respiration) and land habitats (which are more suited to lung respiration) with ease.

Skin Respiration

An adult frog’s thin and permeable skin allows it to take in oxygen, even when completely submerged. Oxygen readily passes through this thin membrane-like skin, providing the frog with the oxygen it needs to stay alive under water without the need for gills. Because of the permeability of a frog’s skin, moisture is lost easily and most frogs must remain in a moist or humid environment in order to retain their water levels.

Lung Respiration

Compared with many other amphibians, frogs have relatively well-developed and complex lungs, which are subdivided and contain many alveoli—tiny sacs that are responsible for gas exchange within the lungs. Unlike mammals that control their breathing with the diaphragm, frogs use their mouths and nostrils in tandem to bring air into their lungs. When a frog breathes in, it lowers the floor of its mouth and relaxes its throat. Then it opens its nostrils to allow air to enter into the newly expanded mouth and throat, at which point the frog contracts its mouth floor and forces air into the lungs.

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3 years ago
What type of organism is an antlion? (Producer, Herbivore, Carnivore, Omnivore)
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7 0
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A local biologist needs a program to predict population growth. the inputs would be: the initial number of organisms, as an int
Nitella [24]

"A local biologist needs a program to predict population growth. the inputs would be..." The resultant code is

tp=sp

hours = 1

while (hours < t):

tp *= g

hours += r

print("The total population is " + str(int(tp)))

# the call function

<h3>What is a program?</h3>

Generally, a program is simply defined as programming written into a computer or other equipment in order to do a certain task

In conclusion, to write a program that takes these inputs and displays a prediction of the total population must consider  the parameters and the code platform (python), Hence

# on python interface required library is explored

import math

# describe the functions needed

def prediction():

sp = int(input("Enter the initial number of organism: "))

g = float(input("Enter the rate of growth [a real number > 0]: "))

while(g<1):

print ("Invalid.. growth rate.")

g = float(input("Enter the rate of growth [a real number > 0]: "))

r = int(input("Enter the number of hours to achieve the rate of growth: "))

t = int(input("Enter the total hours of growth: "))

tp=sp

hours = 1

while (hours < t):

# the calculation for tp

tp *= g

hours += r

print("The total population is " + str(int(tp)))

#call the created function

CQ

A local biologist needs a program to predict population growth. The inputs would be: 1. The initial number of organisms 2. The rate of growth (a real number greater than 1) 3. The number of hours it takes to achieve this rate 4. A number of hours during which the population grows.                           For example, one might start with a population of 500 organisms, a growth rate of 2, and a growth period to achieve this rate of 6 hours. Assuming that none of the organisms die, this would imply that this population would double in size every 6 hours. Thus, after allowing 6 hours for growth, we would have 1000 organisms, and after 12 hours we would have 2000 organisms. Write a program that takes these inputs and displays a prediction of the total population.  

Read more about the program

brainly.com/question/14368396

#SPJ1

7 0
2 years ago
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