Answer:
C) They are compressed during inhalation.
Explanation:
Birds breathe through rigid lungs that are located in the animal's thoracic region. The trachea of birds divides into bronchi that branch inside the lungs into very thin tubes called parabronchials or parabroncholes, which are irrigated by blood capillaries that allow gas exchange.
In birds there are no pulmonary alveoli (as in mammals), but air capillaries that depart from the parabroncholes. Oxygen gas passes from these capillaries to the blood capillaries, thus causing gas exchange.
In the lower portion of the bird's trachea, before branching the bronchi, we can find the syringe, a bag-like structure that has vocal cords responsible for the birds' scream and song. Most of the time, the sound emitted by birds serves to attract the mate, mark territory and prevent birds of the same species against some predator or other danger.
The answer is 22 hydrogen atoms.
This is a simple sugar compound formula <span>Cn(H2O)n</span>
If you have 11 oxygens that means that the second n in the formula will be 11.
Notice that the H (hydrogen) is followed by a 2, that means that the 11 put outside the parenteses will be multiplied by 2.
11 x 2 = 22 hydrogen atoms
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Answer: False.
Explanation:
Nitric oxide(NO) is a signalling molecule synthesised by NO synthase which is a a transmitter in the nervous system. Once it is produced, it diffuses out of the cell and act on nearby cells.
NO have a life time of few seconds and it is extremely unstable and highly reactive, it action is restricted.
The blood vessels uses it to signal the surrounding smooth muscle to relax.
As a cell gets bigger, diffusion becomes less efficient because the surface-to-volume ratio decreases. As the sphere or animal gets bigger, the surface area for diffusion gets smaller.
<h3>Describe a cell example:</h3>
All of these plants and animals, including trees in a forest, fish in a river, horseflies on a farm, lemurs in the jungle, reeds in a pond, and worms in the soil, are comprised of the building blocks known as cells. Many living organisms, like these examples, are made up of many cells cooperating with one another.
<h3>What does a cell perform?</h3>
They provide the body with structure, absorb the nutrients from food, turn those into energy, and carry out specific functions. Furthermore, cells have the ability to replicate themselves that contain the brain's genetic material.
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An organelle in a plant cell called a chloroplast makes food for the plant through photosynthesis