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3 years ago

How does a ptarmigan show protective coloration?

Biology

2 answers:

andrew11 [14]3 years ago

4 0

pigments are responsible for that if that doesn't help you. you can go to yahoo answers and search your question

kow [346]3 years ago

3 0

Pigments are responsible for that if that doesn't help you you can go to yahoo answers and search your question

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Define and distinguish between diffusion and omosis

Dmitry [639]

Diffusion is the spontaneous movement of substances from a region of high concentration to a region of low concentration.

Osmosis is the passage of water molecules from a high water concentration region through a selectively permeable membrane to a low water concentration region.

In diffusion, selectively permeable membrane is neither required nor involved while in osmosis, it is involved.

5 0

2 years ago

Discuss two friends parents least six exchange

krek1111 [17]

Answer:

A dialogue between father and son for permission

Son : I have a request to you.

Father: Tell me please.

Son : my class is going on a picnic to Murree..

Father: What is your purpose?

Son : I also want to go with my class.

Father: Who are going on picnic?

Son : Rashid, Faheem, Saleem, Yaseen all are going on picnic.

Father: For how many days is your class going to Murree?

Son : Only for one week.

Father: When will your class go?

Son : Today at night.

Father: O.K. you may go. How much money you want?

Son : Only one thouasnd.

Father: All right take your money. Keep mobile with you so that connection between you and me could remain alive.

Son : Mother! It is great pleasure, father has allowed me to go on picnic. Please give me three suites of different varieties and pack my bag.

Father: But I shall go to leave you with your mother at railway station because you are my only son.

Son : Father, please give me your camera so that I could take different photos of my friends and myself.

Father: It is a great pleasure for me that you have demanded money and camera for the first time.

Son : Pray for us because our train is about to leave the station.

Father: May you all comeback safe and sound.

Son : Goodbye

Father: Goodbye.

4 0

2 years ago

A nurse has been administering a drug to a client intramuscularly (im). the health care provider discontinued the im dose and wr

ludmilkaskok [199]

First-pass effect.

The first-pass effect involves drugs that are given PO and absorbed from the small intestine directly into the portal venous system, which delivers the drug molecules to the liver. Once in the liver, enzymes break the drug into metabolites; they may become active or may be deactivated and readily excreted from the body. A large percentage of the oral dose is usually destroyed and never reaches tissues. Oral dosages account for this phenomenon to ensure an appropriate amount of the drug in the body to produce a therapeutic action. Passive diffusion is the major process through which drugs are absorbed into the body. Active transport is a process that uses energy to actively move a molecule across a cell membrane and is often involved in drug excretion in the kidney. Glomerular filtration is the passage of water and water-soluble components from the plasma into the renal tubule.

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3 years ago

Which of these cannot be placed in a respirometer?<br> Insects<br> Humans<br> Germinating seeds

yarga [219]

Answer:

the awnser is germinating seeds.

i got this awnser correct on my test :)

8 0

2 years ago

Will the forest fire affect the carnivores of the ecosystem

marysya [2.9K]

Yes because if there is too much vegetation and not enough omnivores or herbivores the carnivores could eat all other animals and the eventually go extinct because of food loss and starvation. <span />

6 0

2 years ago