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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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(True or False)The chromosomes of plants usually occur in pairs
ale4655 [162]
True hope this helps
7 0
3 years ago
The human eye can detect wavelengths between 400 nm and 700 nm. The sky appears blue (490 nm) due to the scattering of visible l
kondor19780726 [428]

Answer:

In the electromagnetic spectrum, the visible spectrum is the part, which is perceptible to the human eye. The electromagnetic spectrum in this array of wavelengths is known as simply light or the visible light. A general human eye will react towards the wavelengths in the range between 380 to 740 nm. A human eye sees the sky as blue that comes in the wavelength 490 nm because of the scattering of the visible light by the particles in the atmosphere. This concludes that 490 nm is the sole wavelength, which is reaching the eye.

3 0
3 years ago
Which statement best explains the impact of favorable oceanic conditions on the Geosphere?
GREYUIT [131]

Answer:

The best answer is "Ocean waves add more sand to beaches"

Explanation:

based on statement above, the oceanic conditions are changes in ocean parameters (temperature and movement) and substances which contain in oceans (salinity, nutrient availability, oxygen and carbon dioxide level, etc).

Geosphere is a part of the earth that included the earth's interior, landform, rocks, and mineral. There are lithosphere, atmosphere, hydrosphere, biosphere and, anthroposphere.

on the answer choice, the ocean wave is the example of the oceanic condition which has changed in movement. and the beach is an example of the lithosphere.

3 0
3 years ago
Identical twins who have separate placentas are somewhat less similar than identical twins who share a placenta. This best illus
Jobisdone [24]

Answer:

prenatal environments

Explanation:

Depending on the number of fertilized eggs and when the zygote division occurs, there are different types of twins. For example, If the zygote is formed by the union of an ovule and a sperm that after fertilization is divided to create two embryos, they are born identical twins, these babies carry the same genetic information.

4 0
3 years ago
Which term describes the example below?A child with no freckles has a mother who has freckles and is heterozygous and a father w
Natali5045456 [20]
It is C as to have freckles you have to have a dominant and recessive gene (can be worked out using a punnett square) as the child has 50% of not having freckles like his dad or 50% having freckles like his mom. 
                     male genes(homozygous recessive)
                     f            f

female    F    Ff           Ff
genes
              f     ff             ff

so ff is not having freckles and being homozygous recessive, or Ff having freckles and being heterozygous.

So the child is heterozygous  so C
3 0
3 years ago
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