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madam [21]
3 years ago
15

5. After a massive clean-up, why will contamination continue for decades after?

Biology
1 answer:
sammy [17]3 years ago
4 0

Answer:

This is Because they can't be 100% in location of PCBs since animals could spread and reproduce among different places with these toxins within their systems.

Explanation:

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Which organ contains alveoli, bronchioles, and bronchi that are moist with mucus and lined with cilia?
almond37 [142]
<span>The organ that is home to alveoli, broncioles, and bronchi which are moist with mucus and line with cilia are the lungs. The lungs are used to bring oxygen into the body and carry it to the heart which in turn pumps it throughout the entire human body to all the other organs.</span>
3 0
4 years ago
Which answer best defines what the Lotka-Volterra predator-prey model mathematically describes?-The competition among many preda
yanalaym [24]

Answer:

The simultaneous effect of a predator population on a prey population and a prey population on a predator population over time.

Explanation:  

The mathematical models of Lotka-Volterra equations explain the existing interaction between species in which prey and predator influence and affect each other. The model follows a few assumptions,    

  • The ecosystem is isolated and closed. There is no migration.
  • The whole individuals are reproductively equivalent.
  • In the absence of the predator, prey shows an exponential growth rate. The prey is in the ideal environment.  
  • When there is no prey, the predator population decreases exponentially because of the lack of food. The predator environment is ideal, but it is limited by prey density.  
  • The predation rate is proportional to the encounters rate, which also depends on density.  
  • The predators affect the prey populations, inducing its decrease proportionally to the number of prey and predators present.  
  • The prey population also influences the predator population proportionally to the number of encounters between the two species.  

In these equations, the variable D is the number of predators, and P the number of prey items.

The parameters are always constant:  

• r1: prey growth rate.  

• a1: predator hunting success.  

• r2: predator growth rate.  

• a2: the success of the predator in hunting and feeding.

In nature, many factors affect interactions, such as dense-dependent factors and dense-independent factors. Also, in reality, there are stochastic factors. Stochasticity refers to the variability in the system involving those factors that are affecting or influencing population growth. Stochasticity might be related to good years and bad years for population growth.

In real situations, the compliance of the whole assumption does not occur. The previously mentioned constants might vary, constantly changing the interaction between the predator and the prey. These parameters change in different degrees, resulting in varying circumstances for both species.

3 0
4 years ago
Engage/Daily Bellringer - The graph provided shows the population of an organism
lubasha [3.4K]

Answer:

carrying capacity

Explanation:

<em>The leveling off is an indication of the carrying capacity of the environment.</em>

<u>By definition, the carrying capacity of an environment is the total number of organism of particular species that an environment can support given the resources it has.</u>

When a particular species of organism is introduced into a new environment, it first of all spend some time trying to adjust to this new environment and this time is characterized by little population growth.

After successfully adjusting and getting acclimatized to the new environment, the population of the organism experiences a sharp rise and then levels off as the maximum population size the environment can support based on the resources it has is reached. This jund of population growth is referred to as logistic growth.

The population of the organism fluctuates a little bit around the carrying capacity based on several factors, especially competition for resources.

8 0
4 years ago
Which career combines DNA technology and medicine?
zzz [600]

Answer:

a- pharmaceuticals

Explanation:

Pharmaceuticals is a demanding and challenging field which tests your knowledge of  DNA technology and medicine because they are the ones making drugs for new diseases and such. Thus they need to know how to prepare those drugs to target certain cells or organelles and such and need to know how it will affect the human being and/or other living beings

4 0
4 years ago
What should I circle for this worksheet and help me on parts A and Part B show works on doing this work for A and B plz help I w
AURORKA [14]
Measurements would be everything that is not an instruction. To sum that up, everything in the left should be circled EXCEPT makes 3 loaves

A.) Liquid is measured in mL so everything with mL is a liquid 826mL+80mL+158mL= 1,064 mL

B.) Dry items are measured in g so everything ending with g is dry item 14g+7g+120g+1,135g= 1,276g
4 0
4 years ago
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