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alexandr1967 [171]
2 years ago
10

Which is a base? A. Substance C is formed from the reaction of an acid and a base. B. Substance A gives off H+ ions that combine

with OH– ions when dissolved in water. C. Substance B gives off OH– ions that combine with H+ ions when dissolved in water.
Biology
1 answer:
Maru [420]2 years ago
4 0

Answer:

C. Substance B gives off OH– ions that combine with H+ ions when dissolved in water.

Explanation:

A base is a substance that interacts with water to yield excess hydroxide ions in an aqueous solution.

Bases are certain metallic oxides, metallic hydroxides and aqueous ammonia.

Bases reacts with acids to produce salts which is substance C as described in first option.

Substance A is an acid and it gives off Hydrogen ion.

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A grassy meadow high in the Sierra Nevada Mountains of eastern California is known to support a variety of organisms. During the
gavmur [86]

Answer:

b) 1,000

Explanation:

In a typical food chain as described in this question, flow of energy occurs from one organism to another when they feed/fed upon. As one organism feeds, energy gets transferred to it. However, only about 10% of the available energy in the lower trophic level gets transferred because majority of the energy (about 90%) is lost as heat during metabolic processes of the organism.

Hence, if a flower contains approximately 100,000 units of energy and is fed on by butterflies. 10% of 100, 000 = 10,000 units gets transferred to the butterflies.

Likewise, the butterflies gets fed on by certain bird species. 10% of the available 10,000 units of energy in the butterfly gets transferred to the birds.

= 10/100 × 10,000 = 1000 units of energy.

4 0
2 years ago
If you were to add one of the eight citric acid cycle intermediates to the culture medium of yeast growing in the laboratory, wh
raketka [301]

Answer:

B) The rates of ATP production and carbon dioxide production would both increase.

Explanation:

The citric acid cycle is the second stage of aerobic cellular respiration. It includes complete oxidation of acetyl CoA into CO2 and H2O. During the citric acid cycle, NAD and FAD serve as electron acceptors. Reduction of these reducing powers forms NADH and FADH2 which in turn enter the electron transport chain for their oxidation and drive the process of as many as 32 ATP molecules by oxidative phosphorylation. On the other hand, fermentation forms of 2 ATP molecules and a few or no CO2 molecules.

Therefore, if one of the eight intermediates of the citric acid cycle is added to the medium, the yeast cells would perform aerobic cellular respiration and would form more CO2 and ATP molecules than the ones formed during the process of fermentation.

7 0
2 years ago
Your three blood cell types have different sizes, shapes, and functions. Yet they all started out alike. Within each cell of you
PIT_PIT [208]
I think the correct answer from the choices listed above is option B.  Within each cell of your body there are chromosomes <span>which give the instructions for cell processes. These instructions include the differentiation of your blood cells. Hope this answers the question. Have a nice day.</span>
6 0
2 years ago
Read 2 more answers
Jim rode at average speed of 12 mph for 2 hours then he walked at average speed of 3 mph for 0.5 hours what was the total distan
GarryVolchara [31]

Answer:

25.5

Explanation:

im big brain sorry if not right :(

3 0
2 years ago
Please help asap the scientific name Canus nipponicus. To which classification levels does this scientific name belong?
Amiraneli [1.4K]

The correct answer is - C. genus and species.

The final scientific name of an animal represents two things, its genus, and its species.

The first name is the genus of the animal, in this case we have Canus. The second name is the species of the animal, in this case nipponicus.

All living organisms are classified in a same manner: kingdom, phylum, class, order, family, genus, species.

Since the name Canus reminds me a lot of Canis, I will take the wolf as an example:

Kingdom: Animalia

Phylum: Chordata

Class: Mammalia

Order: Carnivora

Family: Canidae

Genus: Canis

Species: C. Lupus

6 0
2 years ago
Read 2 more answers
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