1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ladessa [460]
3 years ago
12

POPULATION AGE STRUCTURE summary Will reward

Biology
1 answer:
Vaselesa [24]3 years ago
4 0

The population age structure is is simply the structure of a population in a given time period by age groups. In order to represent the population age structure in a simple and efficient way, the population pyramid is used. Depending of what type of population is dominant, the pyramid will have different shapes. It can easily show us the trends and type of demographic transition for a particular population. When there high birthrates, the pyramid tends to be widest at the bottom, but when there's low birthrates the pyramid tends to be widening in the middle and upper sections.

You might be interested in
⊂Select all the correct answers.⊃
sveta [45]

a. respiration of living organisms

D. absorption of CO2 from the atmosphere by ocean water

7 0
3 years ago
Read 2 more answers
What is the advantage of binary fission for prokaryotes?
Zielflug [23.3K]
Binary fission is for reproduction of a cell by division into two equals parts 
7 0
3 years ago
Read 2 more answers
Most of the energy that your brain uses comes from
evablogger [386]

Answer:

Glucose

Explanation:

The brain is an energy-hungry organ. Despite comprising only 2 percent of the body’s weight, the brain gobbles up more than 20 percent of daily energy intake. Because the brain demands such high amounts of energy, the foods we consume greatly affect brain function, including everything from learning and memory to emotions.

Just like other cells in the body, brain cells use a form of sugar called glucose to fuel cellular activities. This energy comes from the foods we consume daily and is regularly delivered to brain cells (called neurons) through the blood.  

Studies suggest the quality of the foods consumed over a lifetime affects the structure and function of the brain. For instance, the consumption of omega-3 fatty acids found in fish provides structural material to maintain neurons. Studies also suggest omega-3 fatty acids are essential for the transmission of information between brain cells. In contrast, foods that are rich in sugars and saturated fats have been found to promote oxidative stress, which leads to damage to cell membranes.  

The food you eat also affects molecules in the brain that support cognition. Some foods, such as those with turmeric, support cognition by helping to maintain molecular events related to energy metabolism.

Recent studies suggest lifestyle choices that affect the metabolism of nerve cells, such as diet and exercise, may in some cases provide a non-invasive and effective strategy to counteract neurological and cognitive disorders.

6 0
2 years ago
How do cells store and release chemical energy?
pychu [463]
The answer is, cellular respiration. I hope I helped!
3 0
3 years ago
Part B: Research (11 points) In part B you will be doing some research on desertification.
Goryan [66]
Okay so northern Africa and the Sahara desert is the best example of desertification.
2 ways humans have contributed to that is: 1) pastoral nomadism 2) little to no settlements to increase water supply 

how it impacted the environment: so now the environment there is sandy, only organisms adapted for those extreme environment can live there ex. camel, cactus, etc., 

how it impacted quality of life: quality of life diminished, not enough water to sufficiently feed the populations, people live in extreme poverty, people are moving away, and the climate is very dry and hot, pretty much not a place anyone would want to live

http://eden-foundation.org/project/desertif.html

https://www.sciencedaily.com/releases/2017/03/170314111320.htm


8 0
3 years ago
Other questions:
  • What process do frogs undergo that physically changes them from a tadpole to an adult tetrapod?
    11·1 answer
  • Closely related species often look similar but have courtship rituals that are slightly different.
    5·2 answers
  • Question 10 of 10
    9·1 answer
  • LESSON REVIEW
    7·1 answer
  • Radioactive amino acids incorporated into the proteins were rejected into the retina of a rabbit. After measuring the radioactiv
    15·1 answer
  • State the purpose of making urine.
    15·2 answers
  • Which type of muscle cell is responsible for performing Peristalsis?
    8·2 answers
  • 5. Genes code for<br> O lipids<br> O carbohydrates<br> O protein
    12·1 answer
  • If a P-Wave took 5 minutes to reach a seismic
    9·1 answer
  • 30 POINTS!! After 70 years of absence, the gray wolf was reintroduced to Yellowstone National Park in 1995. After 1995, the elk
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!