All categories

2 years ago

Why the lungs are considered part of the excretory system?

Biology

2 answers:

serg [7]2 years ago

8 0

Answer:

The Lungs. The lungs play a mandatory role in the excretory system. Your lungs remove the carbon dioxide built up in your blood using specialized cells known as alveoli. Your lungs process the molecules into gas and when you breathe, the gas is ejected from your body.

Explanation:

viva [34]2 years ago

5 0

Answer:

Because, by exhaling, they release (or excrete) the carbon dioxide that builds up in the blood, as a waste product of cellular respiration. It's a very important role, even if we often forget the lungs as part of the excretory system.

You might be interested in

which of these describes the process of blending human and material resources through a formal structure of tasks and authority;

DiKsa [7]

Answer:

The answer is Management

Explanation:

Management is a term that describes the process of achieving the objectives of an organisation through directing people and utilizing other resources.

For management to be effective, it has to take place within a formal structure of authority and tasks.

Authority sees to the allocation of task among employees as well as their supervision to ensure that objectives are accomplished while plans are implemented.

8 0

2 years ago

One of the traits that we looked at in class was a widow's peak (has peak is dominant, no peak is recessive). For each individua

Marina CMI [18]

Answer:

Explanation: 1) Individual who is bald but neither parents has a widow's peak: As having a peak is dominant and the individual is bald with parents that doesn't have the trait, the genotype is recessive, in the case ww;

2) Individual has a widow's peak: The individual's genotype can be WW, homozygous for the trait or Ww, heterozygous for the trait, depending on the genotype of the parents;

3) Individual can't roll their tongue: Being able to roll the tongue is a dominant characteristics, so if the individual can't roll their tongue means the genotype is recessive. But, there is little evidence that this trait is dominant or inheritable;

4) Individual has a widow's peak but their mother does not: In this case, the genotype of the individual is heterozygous (Ww), because the mother is recessive (ww) and the offspring has the trait, so the father must have had it;

5) If an individual does not have a widow's peak (ww), which genotype would be impossible? If this individual crosses over with another individual with the same trait, their children will be all recessive for widow's peak (ww), so there is no possibility of an offspring with the trait;

If the initial individual crosses over with an individual with widow's peak, two possiblities can occur:

If the crossover is with an individual homozygous for the trait (WW): all their children will have widow's peak with genotype Ww. So, the possibility of not having the peak is 0;
If the crossover is with an individual heterozygous for the trait (Ww), there will be a probability of 25% for the children to have genotype WW, a probability of 50% for the offspring to be heterozygous (Ww) and has the trait and probability of 25% to be recessive (ww) and therefore doesn't have the trait;

8 0

2 years ago

The various taxonomic levels (e.g. genera, classes, etc.) of the hierarchical classification system differ

Westkost [7]

Answer:

Explanation:

The taxonomic classification has eight levels, they go from the more inclusive to the more exclusive.

The eight categories are: Domain which is the most inclusive level, that is to say, that the largest number of individuals are included in this level. There are three domains according to the cells types, and where they live. They are the Eukarya, Bacteria and Archaea. Domains are divided into kingdoms, they are the Plantae, protista, Eubacteria, Archaebacteria, Animalia and Fungi. After kingdoms the Phylum category comes, following Phylum is Class, various classes that are related will form a Phylum. The next category is Order, order is divided into Family, families are broken into Genus, where species are closely related between each other and finally the last category is Especies identifier, in this group there are unique characteristics that will identify a specie. With this classification we can see that we go from global groups to more specifics ones as the classification avances.

8 0

2 years ago

Is Crohn's disease dominant or recessive?

Degger [83]

I'm pretty sure it's recessive?

3 0

2 years ago

Read 2 more answers

If an organism has a high biological fitness in one environment ,does that mean that it would also have high biological fitness

dsp73

The answer is NO. This is because different environments require different adaptations. A desirable trait in one environment may be inconsequential or detrimental in another environment. This is the reason also why evolution is continuous as natural selection acts on traits of a population to ensure desirable traits are retained with changes in the environment in a dynamic world.

3 0

2 years ago