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melomori [17]
3 years ago
12

What does the respritory system do?

Biology
1 answer:
diamong [38]3 years ago
4 0

Answer:

The respiratory system's main job is to move fresh air into your body while also removing waste gases.

Explanation:

Your lungs are part of the respiratory system, a group of organs and tissues that work together to help you breathe.

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What should you do if a mole on your body is growing larger and its border is irregular
LekaFEV [45]
Avoid touching it, if a mole is picked at and is expanding this can becaome a serious problem causing infection if picked at, if it continues to grow you might needd to see a doctor or a dermatologist
3 0
3 years ago
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Realizează trei lanțuri trofice utilizând speciile care trăiesc în grădina de legume. Stabilește locul omului în lanțurile trofi
faltersainse [42]

Answer:

Grass - grasshopper- man - bacteria.

Grass - rabbit- man - maggot.

Grass - cow - man - bacteria.

Explanation:

In these food chains, grass is the producer that provides food to primary consumer or herbivores such as grasshopper, cow and rabbit. These primary consumers are the food of secondary consumer such as human while when human die, it become the food of worms and decomposers such as maggot, bacteria etc. the nutrients releases by decomposers are used by producers for the production of food for themselves.

5 0
3 years ago
1 Populations that show uniform dispersion typically show the following characteristics EXCEPT:
professor190 [17]

1. Answer: C

Explanation: Species that are inclined to clumping means they are more likely to cooperate in tasking such as gathering food. However, evenly distributed population means there is competition between individuals hence the need to their own space and territory from the other individual.

2. Answer: B

Explanation: While the clumped up populations may be inclined to cooperate in tasks such as food gathering, such distribution results to increases intraspecies competition especially during scarcity. This is because the individuals are close together – which is also advantageous during mating season.

3. Answer: A

Explanation: Type 3 survivorship curve is characterized by a high mortality rate early in the life of the species which gradually progresses to a low mortality rate for the individuals that survive the early stages of life. These species, therefore, bear a lot of offspring most of which will not make to adulthood.

4. Answer: B

Explanation: If the death rate of a population is higher than the birth+ immigration rate, then the population must be decreasing. This can be demonstrated by a growth curve of a population such as that of bacteria. The population starts decreasing due to increased competition for reduced resources after reaching carrying capacity  - depicted by the stationary phase.

4 0
3 years ago
Which of the following is the most likely global climate change? a. a decrease in the overall temperature of the Earth b. an inc
Evgen [1.6K]

B) An increase in the overall temperature of the Earth

B is the answer because global climate change is the increase of the overall temperature of the planet.

hope that helps :)

8 0
3 years ago
Read 2 more answers
Several biology students are counting kernels in an ear of corn. They count a total of 420 kernels: 242 purple wrinkled, 84 purp
s2008m [1.1K]
The answer is C) 9:3:3:1

This looks like a dihybrid cross where the expected phenotypic ratio is 9:3:3:1. However, in nature, the numbers cannot be absolut. Let's check it out:
242 purple wrinkled
84 purple smooth
70 yellow wrinkled
24 yellow smooth

Divide all by the smallest number:
242 purple wrinkled / 24
84 purple smooth / 24
70 yellow wrinkled / 24
24 yellow smooth / 24

We have 
10.1 purple wrinkled which is near to 9
3.5 purple smooth which is near to 3
2.9 yellow wrinkled which is near to 3
1 yellow smooth
6 0
3 years ago
Read 2 more answers
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