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bezimeni [28]
3 years ago
9

Which of the following occurs during the ecological succession of an ecosystem?

Biology
2 answers:
sergey [27]3 years ago
8 0

The answer is <span>c. Living organisms modify their environment a little at a time.</span>


The purpose of succession is for an ecosystem to reach balance state right after it is formed or after it is disturbed by man or some disasters. It will increase biodiversity and help to prevent the desertification. Living organisms modify environment a little at a time. By modifying it, they make the environment more suitable for the new species to enter the community.

olchik [2.2K]3 years ago
5 0

Answer:

Lesson 8: Ecosystem Changes Over Time

1.What is one difference between primary and secondary succession?

A. Secondary succession begins on soil and primary succession begins on newly exposed surfaces.

2. A tropical rain forest may be unable to be returned to its original climax community after which of the following disturbances?

B. Clearing and Farming

3.  Which of the following occurs during the ecological succession of an ecosystem?

C. Living organisms modify their environment a little at a time.

4. A parking lot paved with asphalt is abandoned. Describe the parking lot 5 years after its abandonment.

B. Large patches of asphalt remain bur small plants grow in many cracks in the asphalt

5.Rank the following disturbances to a forest area in order of the length of time (shortest to longest) needed for recovery of the forest.

B) Ice Storm, Tornado, Logging.

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Nonamiya [84]

Answer:

True.

Explanation:

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2 years ago
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NADH is also used by cells when making certain molecules. Based on your knowledge of the role of NADH in cellular respiration, w
chubhunter [2.5K]

Answer:

b. reducing molecules

Explanation:

Nicotinamide adenine dinucleotide (abbreviated NAD +, and also called diphosphopyridine nucleotide and Coenzyme I), is a coenzyme found in all living cells. The compound is a dinucleotide, as it consists of two nucleotides linked through their phosphate groups with a nucleotide that contains an adenosine ring and the other that contains nicotinamide.

In metabolism, NAD + participates in redox reactions (oxidoreduction), carrying electrons from one reaction to another.

Coenzyme, therefore, is found in two forms in cells: NAD + and NADH. NAD +, which is an oxidizing agent, accepts electrons from other molecules and becomes reduced, forming NADH, which can then be used as a reducing agent to donate electrons. These electron transfer reactions are the main function of NAD +. However, it is also used in other cellular processes, especially as a substrate for enzymes that add or remove chemical groups of proteins, in post-translational modifications. Due to the importance of these functions, the enzymes involved in the metabolism of NAD + are targets for drug discovery.

5 0
3 years ago
How are tigers and goldfish are related in two different ways?
11Alexandr11 [23.1K]

Tiger is a top predator in the jungles of Asia and the goldfish is a small species of fish selectively bred in China and they are not at all related.

All living things have the same way of transferring genetic information, trough the DNA molecule. Genetic analyses showed that the last common ancestor (LUCA) of all organisms on Earth has lived 3,5 billion years ago. After that, all living things diverged into separate groups. Tigers and goldfish both are animals and have a common ancestor. Tigers may be in a close relationship with other big cats like lions and cheetahs, but they all have a common ancestor with the goldfish since all vertebrates have a common ancestor that was an ancient fish species.

4 0
3 years ago
Consider a population of 425 diploid giant Sequoia trees. In this population, you observe the following genotypic counts: 100 ho
Lemur [1.5K]

Answer:

q = 0.42

Explanation:

This question is an example of Hardy-Weinberg question and there are two equations necessary to carry out this question;

p + q = 1

p² + 2pq + q²  = 1

where;

p = the frequency of the dominant allele

q =  the frequency of the recessive allele

p² = the frequency of individuals with homozygous dominant genotype

2pq  = the frequency of individuals with heterozygous genotype

q² = frequency of individuals with the homozygous recessive genotype

Since the total  population = 425

q² = \frac{individuals with recessive genotype}{Total Population}

= \frac{75}{425}

q² = 0.1765            

To find q; we need to square root both side to           eliminate the square from  q².

∴ \sqrt{q^2}=\sqrt{0.1765}

q = 0.4201

q = 0.42       (to two decimal places)

4 0
3 years ago
The apical ends of intestinal cells face the intestinal channel and have long processes that facilitate the absorption of nutrie
Serggg [28]

Answer:

microvilli, actin filaments

Explanation:

The apical ends of intestinal cells face the intestinal channel and have long processes that facilitate the absorption of nutrients. the name of these processes is microvilli and actin filaments from the cytoskeletal element forms their internal skeleton.

3 0
3 years ago
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