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Vesna [10]
3 years ago
8

What function do the alveolar sacs serve in the respiratory system

Biology
1 answer:
BartSMP [9]3 years ago
4 0
Alveoli are tiny sacs within our lungs that allow oxygen and carbon dioxide to move between the lungs and bloodstream. So they assist in breathing.
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What is a benefit that algae provide to humans and other organisms?
Keith_Richards [23]
Algae produces a estimated 30-50 percent of the net global oxygen .
3 0
3 years ago
In the sterilization area, dental instruments should move from a/an _______ to a _______ area.
Artist 52 [7]

The letter Is C

because dentists/doctors

have to move from a dirty place

to a clean place so thier patients wont get infected


Hope this helps mark brainlist

4 0
3 years ago
Read 2 more answers
Define the following terms in regards to the brain: ventricles, hemispheres, gyri, sulci, fissures, lobes, cerebral cortex.
Ymorist [56]

Answer:

ventricules.-The ventricles of the brain are a communicating network of cavities filled with cerebrospinal fluid (CSF) and located within the brain parenchyma. The ventricular system is composed of 2 lateral ventricles, the third ventricle, the cerebral aqueduct, and the fourth ventricle.

Hemispheres.-The left side of the brain is responsible for controlling the right side of the body. It also performs tasks that have to do with logic, such as in science and mathematics. On the other hand, the right hemisphere coordinates the left side of the body, and performs tasks that have do with creativity and the arts.

Gyri and Sulci.- Sulci, the grooves, and gyri, the folds or ridges, make up the folded surface of the cerebral cortex.  A sulcus is a shallower groove that surrounds a gyrus.

Fissures.- A fissure is a large furrow that divides the brain into lobes and also into the two hemispheres as the longitudinal fissure.

Lobes.- Each side of your brain contains four lobes. The frontal lobe is important for cognitive functions and control of voluntary movement or activity. The parietal lobe processes information about temperature, taste, touch and movement, while the occipital lobe is primarily responsible for vision.

Cerebral cortex.- the furrowed outer layer of gray matter in the cerebrum of the brain, associated with the higher brain functions, as voluntary movement, coordination of sensory information, learning and memory, and the expression of individuality.

7 0
3 years ago
The growth rate you entered into the model predicts that the population growth of fog beetles will start to slow down and declin
ANEK [815]
<h2>Answer:</h2>

The statement is true if the growth rate is less than death rate. But this statement is false if the growth rate is higher than the death rate.

<h3>Explanation:</h3>
  • Growth rate is the division of number of birth and growth of individual with a given time.
  • Its unit is individual per second or bigger unit is individual per day.
  • Death rate is the number of individuals died in a unit of time.
  • When the GR is bigger than DR the population size increase as the many [people will grow than die.
  • But when the growth rate is less than death rate, the population size will decline with the passage of time.
4 0
3 years ago
Assume a population of deer has a crude birth rate of 36 per 1,000/yr, a crude death rate of 20 per 1,000/yr, an immigration rat
jeka57 [31]

Answer:

0.023%

Explanation:

The Population growth rate is a change in population with time taken into consideration. It can be expressed with the formula

N/t where N is the total change in the population size, and t is time.

When immigration and emigration are factored in, we now have the formula;

(CBR +I) - (CDR + I)/1000

= (36 + 15) - (20 + 8) = 51 - 28= 23\\\\expressing as a percentage of the population gives us,\\\\23/1000=0.023%\\\\

8 0
3 years ago
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