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s344n2d4d5 [400]
3 years ago
7

Which best describes the age structure of a population with zero population growth?4

Biology
2 answers:
san4es73 [151]3 years ago
7 0

Answer:

4

The majority of people are of pre-reproductive ages in a broad-base pyramid age structure diagram.

Explanation:

Disease is density-dependent because transmission occurs more easily when a population is large & crowded

FinnZ [79.3K]3 years ago
7 0

Answer:

The age-structure diagram would be column-shaped with all age classes approximately equal.

Explanation:

Zero population growth is when a certain population (within a city or country) does not grow or decline. It is considered by others as a way to reach a stable environmental and economic status, thereby stabilize the country's growth.

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When the brain is unoccupied, an fmri indicates that blood continues to flow via a web of brain regions called the?
bulgar [2K]

Default network


When the brain is unoccupied, an fMRI indicates that blood continues to flow via a web of brain regions called the default network.

The default network is a web of brain regions that have activity that corresponds greatly with each other and different from other networks within the brain. The default network is active when an individual's attention is not concentrated on the external environment and it is measured with the functional magnetic resonance imaging technique (fMRI).



7 0
3 years ago
Question 2 of 9
Jlenok [28]

Answer:

The correct answer is option D.  Light and some other factors are necessary for chlorophyll production

Explanation:

By this experiment, it is clear that light is the major factor that helps in the production of chlorophyll in seedlings or plants. In this study, placing the seeds in the light turns 75 seedlings green which is possible by the production of the green pigment, chlorophyll only. So, it is proved that light is a key factor in the production of chlorophyll.

Besides light, there must be some other factors (mineral nutrition and chemical metabolites) that also play role in the production of chlorophyll or increase or decrease of the chlorophyll production as few seedlings did not turn green in the study.

8 0
3 years ago
Describe the three types of waves that emanate from and earthquake. Compare their speed, type of motion and what the types of ma
Setler79 [48]

Answer:

The types of waves that emanate from and earthquake are the body waves (P-waves and S-waves), and the surface waves. The surface waves travel along the suface, and are are the slowest, even though they do the most damage in an earthquake. While the P-waves travel the fastest through solids, liquids, and gases. S-waves, however only travel through solids.

Explanation:

Hope that helped hun <3

8 0
2 years ago
Item 6 Over a 10-year period, a nation of 100 million people has a birth rate of 15 million, but a death rate of 5 million and a
likoan [24]

Decreasing first and then growing happening to the population because at every year 10.20 percent population is growing.

<h3>How can you figure out a population's growth rate when there are births and deaths?</h3>

The net reproduction rate (r) is computed as follows: r = (births-deaths)/population size, or simply multiply by 100 to get in percentage terms. Because the population has grown so much, many more people have been added. When a population grows at a steady rate year after year, this is referred to as exponential growth.

Migration is the the number of immigrants minus the number of emigrants over a given time period, divided by the number of person-years lived by the receiving country's population during that time period. It is calculated as the number of net migrants per 1,000 people.

For more information regarding population's growth rate, visit:

brainly.com/question/1437549

#SPJ1

4 0
2 years ago
Please help??? Will mark brainliest!!!
Vilka [71]

the nucleus divides during Mitosis

the cytoplasm divides during cytokinesis

dna replicates in interphase

8 0
3 years ago
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