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Romashka [77]
2 years ago
8

What is a role of sulfur in living organisms

Biology
1 answer:
Alex17521 [72]2 years ago
4 0
State that the most frequently occurring chemical elements in living things are carbon, hydrogen, oxygen and nitrogen. State that a variety of other elements are needed by living organisms, including sulphur, calcium , phosphorus, iron and sodium. State one role for each of the elements mentioned above.
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Recurring and multiple symptoms involving pain, gastrointestinal problems, and pseudoneurological issues can be a sign of ______
Fynjy0 [20]

The correct answer is A. body dysmorphic disorder

3 0
2 years ago
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What statement best compares photosynthesis and cellular respiration?
Paladinen [302]

Answer:

B

Explanation:

Photosynthesis only takes place in the light, while cellular respiration takes place in the light and dark.

https://youtu.be/xmfhKbmQhq0

Photosynthesis vs. Cellular Respiration Comparison

6 0
2 years ago
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Fill in the blank. Giraffe necks and mice necks have the same number of vertebrae, despite their different sizes and functions.
den301095 [7]

Answer:

homologous structure

analogous structure

natural selection

This is known as an analogous structure.

To make this determination, you need to think about if the features are the same in function or also in structure. Features that have a closely related structure and function are likely to be related.

To learn more about why your friend is in the hospital, you should research vestigial structures.

These two beetles aren't closely related, but they look and behave similarly. This is because they live in the same environmental conditions and likely share a common ancestor that lived in Gondwana (the supercontinent that included the southern continents before they split apart through plate tectonics).

Australia has so many genetically distinct organisms because it has been separated from other bodies of land by water for a very long time. This has created an opportunity for long-term independence of other geographic areas.

Explanation:

Penn Foster

8 0
2 years ago
In this specimen of onion root cells, what is the amount of time, in minutes, spent in interphase
valkas [14]

Answer:

Approximately it will consume 55% of the total time in the interphase i.e. 800 minutes.

Explanation:

The time required in different phases are as follows:

It takes 800 minutes for interphase

It takes 400 minutes for prophase

It takes 120 minutes for metaphase

It takes 80 minutes for anaphase

It takes 40 minutes for telophase

Total -- 24 hours

From this it can be concluded that around 55% of the time spent in the interphase, whereas only 28% in the prophase, 8% time for metaphase, 6% Anaphase and 3% Telophase. This is all happens in the onion cell but in case of the human cell, prophase it takes about 15 min, in prometaphase it takes 15 mins, metaphase takes in about 20 min, Anaphase takes minimum of 3 min and telophase is about and cytokineses are about less then 10 mins.

8 0
2 years ago
Tall pea plants are dominant, while short plants are recessive. In a cross between a purebred tall plant and a purebred short pl
zloy xaker [14]

Answer:

1. tall (or heterozygous)

2. 3:1

3. carriers

4. Each parent organism contributes one copy of its alleles in a seemingly random fashion to its offspring, as meiosis to create gametes (egg or sperm cells) reduces the number of genes by half. Therefore, each gamete contributes only one allele.

5. A Punnett square is a diagram used to map out the possible genotypes of a child given the genotypes of its parents. In a Punnett square, the genotype of one parent is listed in the first row of the square, and the genotype of the second parent is listed in the first column. Then, in the middle squares, all possible genotypes of their offspring are listed, and the phenotypes are calculated using the law of dominance.

6. Purebred strains of organisms always produce heterozygous offspring in the first generation, with all members of the first generation exhibiting the dominant trait for the gene of interest. The second generation typically has a 3:1 mix of dominant and recessive phenotypes, respectively.

7. Punnett squares predict that the second generation of two distinct purebred homozygotes for a trait will have a 3:1 ratio of dominant to recessive traits. Mendel did careful statistical analysis on his hybridization experiments and found that, for each of his seven characteristics of interest, the ratio was approximately, but not exactly, 3:1. Therefore, Mendel's experimental observations match the predictions of Punnett squares quite well.

Explanation:

8 0
2 years ago
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