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PilotLPTM [1.2K]
2 years ago
6

How many atoms are in a molecule of feldspar?

Biology
1 answer:
gulaghasi [49]2 years ago
4 0
Let's look at some formulas for feldspar molecules.

KAlSi_3O_8
NaAlSi_3O_8
CaAl_2Si_2O_8

In each of these you should notice that besides there being 8 oxygen atoms, the total number of atoms adds up to 13. (if an element has only 1 atom the number is just left off)
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Which structure allows lymph from the lower right limb to enter the bloodstream? a. thoracic duct b. right lymphatic duct c. rig
Virty [35]

Answer:

a. thoracic duct

Explanation:

Trunks drain into ducts. Therefore only ducts drain into the bloodstream. The answer can be either option a or b.

Why a? The thoracic duct allows lymph from the left side of the body and the limbs (left and right side) to drain into the bloodstream. The right lymphatic duct drains fluid from the upper regions of the body, the right side, right arm and the head.

8 0
2 years ago
Sandra is an avid hiker. She’s found three rocks while hiking near the Camden Gorge. Help her identify which type of rocks they
MaRussiya [10]

Rock A = It is a metamorphic rock that  experienced tremendous heat  and  pressure due to massive,  moving tectonic plates.

Metamorphic rocks are rocks that have been somewhat squished and transformed by heat and pressure. These rocks often have different layers as the rocks go through pressure and are literally look like rocks that have been piled up and then stuck together. The best indicator of this rock being a metamorphic rock is the wavy elongated stripes. The stripes are created from the different rock elements being pressed together over time.

Rock B = It is a sedimentary rock made  primarily from lithification of  organic material.

Sedimentary rocks are rocks that have been formed by different substances that come together due to the different weather conditions. The best indicator of this being a sedimentary rock is how the rock came together and looks like a bunch of shells were glued together.

Rock C = It is an igneous rock that  was formed above  Earth’s surface.

Most igneous rocks have smooth outer layers. These rocks are often made with solidified magma from volcanoes. The best indicator of this being an igneous rock is the indication of it being a solidified piece of magma.

7 0
2 years ago
Read 2 more answers
If high amounts of sulfanilamide are in the presence of an enzyme whose substrate is paba, what outcome is expected?
Doss [256]
<span>If high amounts of sulfanilamide are in the presence of an enzyme whose substrate is paba, then the enzyme would stop functioning since the sulfanilamide inhibits the action of the enzyme. Hope this answers the question. Have a nice day.</span>
3 0
2 years ago
The nutritional energy content (in Calories) present in 86g of broccoli with 2.6g of protein, 6g of carbohydrates, and 0.3g of f
Nimfa-mama [501]

Answer:

40 Cal

Explanation:

Data provided in the question:

Protein present in the broccoli = 2.6 g

Carbohydrates present in the broccoli = 6 g

Fat present in the broccoli = 0.3 g

Now,

We know,

Energy provided by protein and carbohydrates = 4 Cal / g

and,

Energy provided by Fats = 9 Cal / g

Therefore,

Total nutritional energy content = ∑(Amount × Energy provided)

= ( 2.6  × 4 ) + (6 × 4) + (0.3 × 9)

= 10.4 + 24 + 2.7

= 37.1 Cal    

rounding off the answer to nearest 5 ≈ 40 Cal

6 0
2 years ago
There are amphibians that are even larger than bullfrogs. Which of the following could explain how such a large amphibium could
Cloud [144]

Answer:

a. different shape (e.g. flat or ribbon shaped).

d. larger internal surface area of the lungs.

Explanation:

Amphibians are cold blooded animals. They have a low rate of metabolism . Amphibians are located most where there is water or in moist environment because of their skin and how important it is to keep their skin moist.

Amphibians breathe through their skin and this can be called cutaneous respiration. Their lungs are not well developed therefore they undergo a very slow diffusion of oxygen through their blood.

For Amphibians that are larger than bull frogs, they obtain a very sufficient rate of diffusion of gases due to the following reasons:

a. Internal surface area of the lungs: Amphibians that are larger than bull frogs tend to have a more developed respiratory organs which means there lungs have a larger surface area and they are well developed.

b. They have a different body shape: Amphibians larger than bull frogs could have a flat or ribbon shape and their body shapes make it easier for respiratory gases like oxygen to permeate or enter their skin easily.

5 0
2 years ago
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