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sleet_krkn [62]
3 years ago
6

Which advantages do feathers provide for birds?

Biology
1 answer:
Lunna [17]3 years ago
5 0

Answer: Option A.

Explanation:

Feathers are the epidermal growths which form the distinctive outer covering, or plumage of birds and several other vertebrates.

The major function of feather is to provide heat to the body which is possible by two ways light insulation (radiation) and conduction. In light insulation, feather of birds have the property of light scattering that allows to diffuse thermal radiation to keep the body of birds warm, results in heat conservation while in conduction, layer of air is trapped in the furs of feather which slowly heated the bodies of animals or birds.

Hence, the correct option is A.

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How do ciliates deal with osmosis and the influx of excess water
prohojiy [21]

Answer:

The food particles are then engulfed by phagocytosis, forming a food vacuole. Lysosomes then fuse with the food vacuole. ... Most ciliates also have one or more large contractile vacuoles, which collect water and expel it from the cell to maintain osmotic pressure.

Explanation:

5 0
3 years ago
En un bosque oscuro, ¿qué variación de la polilla salpicada se reproduciría en
julia-pushkina [17]

Answer:

Condiciones ambientales adecuadas.

Explicación:

La variación de la polilla moteada se reproduciría en mayor número debido a las condiciones ambientales adecuadas. El color oscuro del bosque ayuda a la polilla moteada a esconderse de sus depredadores que se alimentan de ellos y provoca la disminución de la población de polillas. Es un proceso de selección natural en el que la polilla de color oscuro sobrevive y aumenta la población debido al color oscuro del bosque, mientras que la población de polilla de color claro disminuye debido a la alta depredación.

7 0
3 years ago
In what way does the water cycle demonstrate the features of a cycle
anyanavicka [17]

Answer:

Step 1- Evaporation

Step 2- Condensation

Step 3- Sublimation

Step 4- Precipitation

Step 5- Transpiration

Step 6- Runoff

Step 7- Infiltration

Explanation:

6 0
4 years ago
Could Koch's Postulates be used to prove the cause of a disease of man?
Ghella [55]
No because Koch's. help people work out
5 0
3 years ago
Gas exchange involves the transport of two respiratory gases, oxygen and carbon dioxide. Review how each gas is transported betw
pickupchik [31]

Answer:

1)required for cellular respiration(Oxygen only)

2) net diffusion from alveoli to lung capillaries(Oxygen only)

3)sometimes transported as bicarbonate(Carbon Dioxide Only)

4)net diffusion from body tissues to blood(Carbon Dioxide Only)

5)net diffusion from lung capillaries to alveoli(Carbon Dioxide Only)

6)waste product of cellular respiration(Carbon Dioxide Only)

7)enters alveoli during inhalation(Both Oxygen and carbon dioxide)

8)transported by hemoglobin(Both Oxygen and carbon dioxide)

Explanation:

Gas exchange is a mechanism that helps the body to get the necessary Oxygen that is required for cellular respiration to take place

There is diffusion of oxygen to capillaries that are present in the lungs from the alveoli.

Gas exchange is a mechanism that is also responsible for the body to get rid of waste such as carbon dioxide,

5 0
3 years ago
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