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Masja [62]
3 years ago
7

What is a phase change that occurs when a gas transition into a liquid?

Biology
2 answers:
Rama09 [41]3 years ago
7 0

Answer:

Condensation  

Explanation:

That's the definition.

Condensation is the conversion of a gas to a liquid.

A. is wrong. Melting is the conversion of a solid to a liquid.

B. is wrong. Sublimation is the conversion of a solid to a gas.

D. is wrong. Evaporation is the conversion of a liquid to a gas.

The picture below shows the condensation of water vapour on window glass on a cold winter day.

Mekhanik [1.2K]3 years ago
4 0

Answer: Condensation

Explanation:

Hope this helps :)

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Why was miasma theory replaced?
vredina [299]

Answer:

Miasma theory was replaced because John Snow collected data that showed that germs cause disease.

Explanation:

The theory of miasma was proposed in the past when some scientists —like doctors Thomas Sydenham and Giovanni Maria Lancisi— thought that disease was the product of emanations originated by the decomposition of organic matter. This theory was based on the fact that diseases predominated in places with poor hygienic conditions.

John Snow, an english physician, was one of the main contributors to the <u>microbial theory of disease</u>. In 1854, while a cholera epidemic was occurring, he collected data and organized it statistically and then concluded that the disease was caused by germs present in drinking water. This <u>data was contrary to the miasma theory, which would eventually be displaced by the microbial theory of the disease</u>.

5 0
3 years ago
Which of these plant groups may include the ancestors of plants? A. red algae b. green algae c. brown algae d. fungi
Helga [31]
The red algae was the plant group that includes the Ancestors of plants.
3 0
3 years ago
Read 2 more answers
What type of membrane proteins are integral proteins that move ions or molecules across plasma membrane?
blsea [12.9K]

Answer:

Channel proteins and Carrier proteins

Explanation:

These are type of membrane proteins that transcend the entire length of  phosphoslipid  bi- layer  in the plasma membrane.They facilitate the movement of ions  and molecules across  the walls of the plasma membranes.

Generally, substances like glucose, amino acids, are too large to pass through the phopholipid bilayers. Likewise ions of  potassium, sodium calcium, because of their polarities can not pass through either. They are ferried across the phospholipid by  group of protein structures called channel proteins. Some are also transported across by carrier  proteins.  The process by which these protein structures  aided the  diffusion of substances across the phospholipid bilayer is called Facilitated diffusion.

Channel proteins are pores, that are filled with water molecules with the entrance  well gated.  That is the entrance  is controlled by part in the inner structure  of the protein  which can open or close the pores  like a gate to control the movement of ions across it. e.g Sodium channels are gated for  movement  of sodium ions by voltage or ligands(chemicals) during  nervous  transmission to elicits action potential. Like wise Potassium channels allow  diffusion of potassium ions across the phospholipid bilayers. it gates are shut when sodium channels are open; this  regulate ion exchange.

Their structures are well fixed in shape , specific  to the substance or ions being  transported;and the rate of diffusion  depends on  the like hood of opening of the gate or closure.

Carrier molecules  also in the membranes  do not have a fixed shape, and their transport  direction is determined by the direction of concentration gradients. Thus they can flip on either sides of the membranes to aid diffusion across. Their movement can  be both passive and active, and the rates  of diffusion depends on the number of available carrier proteins in the membrane. They are also specific to the ions they transport.And are not gated,

Therefore these two membrane integral  proteins  facilitate movements of substances across the phospholipild bilayers

8 0
3 years ago
The nitrogen base pairs in the DNA molecule are adenine and or cytosine and .
Dominik [7]

The nitrogenous bases Adenine form two hydrogen bonds with thymine and the cytosine form three hydrogen bonds with the guanine. Simply, A combines with T and G combines with the C. It is often called as a complementary base pairing because of each base pair bonds only with its specific complementary base partner in a DNA molecule.

5 0
3 years ago
Which includes the physical characteristics of an organism
kozerog [31]

Answer:

Response to stimulus

6 0
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