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sweet-ann [11.9K]
3 years ago
13

Why would you use sodium hydrogen carbonate in an investigation

Biology
1 answer:
Hitman42 [59]3 years ago
6 0

Answer:

Investigating photosynthesis. The effect of light intensity on photosynthesis can be investigated in water plants. ... Sodium hydrogen carbonate - formula NaHCO 3 - is added to the water to supply carbon dioxide - a reactant in photosynthesis - to the plant.

Explanation:

hope this helps

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A thin-shelled crab can more readily move to escape a predator than can a thick-shelled crab, but it is more vulnerable to preda
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Answer:

Stabilizing selection

Explanation:

Stabilizing selection is the most common form of natural selection that is not easy to notice in a population as the change is less drastic.  It occurs when average or intermediate phenotypes of a trait in a population are favored, while the extreme phenotypes of that trait are not favored by the forces of natural selection. Over time, intermediate or non-extreme traits become more common in the population, while extreme traits become less common.

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Molecules in food contain chemical energy that cells use to produce____
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3 years ago
A plant cell is placed in a salt solution, and the following observation is recorded:
earnstyle [38]

Answer:

Explanation:

a simple way to look it it is:

Hypertonic would be when the insides are shrunk (arrows point out)

Hypotonic when its full (Arrows point in)

Isotonic is at balance (arrows point out and in)

osmotic: the passage of a liquid through a membrane from a less concentrated solution to a more concentrated one (equal concentrations)

Although I'm not sure which image I'm supposed to be describing, but hope it helps you figure out the answer

4 0
2 years ago
Using your knowledge of meiosis and mitosis,
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4 0
3 years ago
In the 1950s, when Watson and Crick were working on their model of DNA, which concepts were well accepted by the scientific comm
bogdanovich [222]

Answer:

The correct answer will be-

1. Chromosomes are made up of protein and nucleic acid.

2. Genes are located on chromosomes.

3. Chromosomes are found in the nucleus.

Explanation:

Watson and Crick are known for their findings on the structure of DNA in 1953. Their findings were motivated by the book called "What is Life?".

The book stated the concepts which were well accepted by the scientific communities that is the gene determines the trait which is located on the chromosomes proved by the experiments of Morgan.  

The chromosomes are the condensed structure present in the nucleus was suggested by the Nageli in 1884. The chromosomes are composed of nucleic acid and protein was also proved and was well-accepted fact.

But the genes are made up of DNA was not well accepted which was suggested by the experiments of Avery in 1940s.

Thus, the selected options are the correct answer.

5 0
3 years ago
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