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docker41 [41]
2 years ago
13

How does oxygen enter your bloodstream? Please help

Biology
1 answer:
AleksandrR [38]2 years ago
7 0

Answer:

haemoglobin

Explanation:

Inside the air sacs, oxygen moves across paper-thin walls to tiny blood vessels called capillaries and into your blood. A protein called haemoglobin in the red blood cells then carries the oxygen around your body

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What is the relationship between working distance and field of view​
mel-nik [20]

Answer:

yeah

Explanation:

Field Of View (FOV): The Viewable area of the object under inspection. In other words, this is the portion of the object that fills the camera's sensor. Working Distance (WD): The distance from the front of the lens to the object under inspection. Resolution: The minimum feature size of the object under inspection.

4 0
3 years ago
An anthropologist discovers the fossilized heart of an extinct animal. The evidence indicates that the organism's heart was larg
Paladinen [302]

A reasonable conclusion supported by these observations is that the animal was endothermic and had a high metabolic rate.

<u>Explanation:</u>

With reference to warm-blooded species is preferred the endothermic are the species that preserve a steady body temperature regardless of the ambient temperature. Endothermic species mainly include animal kingdom birds and mammals. Many shrimp, however are endothermic too.

If a variation occurs, i.e. if the heat produced is less than the heat loss, the metabolic rate increases to compensate for that loss. Shivering is another method used by people and many other warm-blooded organisms to boost their body temperature. But in case the heat loss is smaller than the heat produced, the process of panting or suddening occurs to increase the heat loss.

6 0
3 years ago
Which of the following is not an example of evolution that has resulted from human activity? A. Many strains of bacteria are now
Blizzard [7]

Answer:

C.Because of hunting, species such as bears and wolves are in danger of extinction.

4 0
3 years ago
Read 2 more answers
A transmembrane protein has the following properties: it has two binding sites, one for solute A and one for solute B. The prote
Usimov [2.4K]

Answer:

The protein is a symport protein.

Explanation:

Transport proteins are proteins which are involved in the transport of solutes across the cell membrane. The binding of the solute to be transported across the membrane causes a conformational change in the shape of the protein, thereby moving the molecule to the side of nthe membrane it is to be transported. The difference in the concentration of the solute across the membrane known as concentration gradient is mainly responsible for the transport of molecules by the transport proteins.

There are three types of transport proteins: uniport, symport and antiport transport proteins.

Uniporters are involved in moving only one molecule across a membrane

Symporters are involved in moving two or more molecule across a membrane in the same direction.

Antiporters are involved in moving two or more molecule across a membrane in opposite directions.

From the description of the transport protein in the question, both solutes A and B are moved across the membrane simultaneously in the same direction. Therefore, the protein is a symport protein.

6 0
3 years ago
a sample of dna contains 20 percent adenine and 30 percent cytosine. What percentage of tymine would you expect to find.
romanna [79]
20 percent.

Since one strand is 20, the opposite that would connect with it (Thymine) would have the same amount so the total would be 100.

Hope this helps!
4 0
3 years ago
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