Answers
Answer:
0.4250 mol MgO
General Formulas and Concepts:
Chemistry - Atomic Structure
- Reading a Periodic Table
- Using Dimensional Analysis
Explanation:
Step 1: Define
17.13 g MgO
Step 2: Identify Conversions
Molar Mass of Mg - 24.31 g/mol
Molar Mass of O - 16.00 g/mol
Molar Mass of MgO - 24.31 + 16.00 = 40.31 g/mol
Step 3: Convert
= 0.424957 mol MgO
Step 4: Check
We are given 4 sig figs. Follow sig fig rules and round.
0.424957 mol MgO ≈ 0.4250 mol MgO
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Which components bond with the nitrogenous base, guanine, in a section of double-stranded DNA?A. Ribose sugar and uracil B. Deoxyribose sugar, phosphate, and Thymine C. Guanine, cytosine, and phosphate D. Cytosine and deoxyribose sugar
Which of the following statements about DNA isolation from E. coli is not correct?a. chemical extraction using phenol removes proteins from the DNAb. RNA is removed from the sample by RNase treatmentc. detergent is used to break apart plant cells to extract DNAd. lysozyme digest peptidoglycan in the bacterial cell walle. centrifugation separates cellular components based on size
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Answers
Answer:
62°F (17°C) to -60°F (-51°C) at the tropopause.
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The stages of replication is Attachment, Penetration and Replication
The following information should be considered:
- A bacteriophage means the virus that attacks bacterial cells.
- The lytic and lysogenic cycles comrpise of two methods of viral replication.
- In the lytic cycle, the virions generated are released from the host cell while on the other hand in the lysogenic cycle, viral nucleic material are existed into host nucleic material and also they are copied to daughter cells at the time when the host cell reproduces.
The common steps in both cycles are given below:
- Attachment – in this step, the bacteriophage attaches itself to the host surface cell to insert its DNA into the host cell.
- Penetration – the virus inserts its DNA into the host cell via penetrating the cell membrane of the host cell.
- Replication – the viral nucleic material is replicated using the host cell's replication mechanism.
Learn more: brainly.com/question/20492533?referrer=searchResults
Answer:
Attachment, Penetration and Replication
Explanation:
A bacteriophage is a virus that attacks bacterial cells. The lytic and lysogenic cycles are two methods of viral replication. In the lytic cycle, the virions produced are released from the host cell whereas in the lysogenic cycle, viral nucleic material are incorporated into host nucleic material and are copied to daughter cells when the host cell reproduces. The common steps in both cycles are given below:
1 Attachment – in this step, the bacteriophage attaches itself to the surface of the host cell so as to insert its DNA into the host cell.
2. Penetration – the virus inserts its DNA into the host cell by penetrating the cell membrane of the host cell.
3. Replication – the viral nucleic material is replicated using the host cell's replication mechanism.
Answers
Answer: The answer would be ability to use energy.
Explanation:
One of the main differences between living and non-living organisms is that the living organisms are able to use energy to maintain homeostasis.
The non-living things such as aluminium can not utilize energy for itself.
However, a living cell uses energy for all its vital functions such as digestion, respiration, et cetera.
Answer:
ability to use energy
Explanation:
The cellular composition between a living organism and an aluminum can is very different. For starters, only living things have cells, as this is the basic structure of living things. In addition, the cells of living things produce and use energy so that the metabolic processes that allow life to continue happen. For this reason, we can say that the difference between the cellular composition of a living organism and an aluminum can is the ability to use energy.
B) allowing runoff of irrigation water
C) throwing out old motor oil instead of recycling it
D) painting boats in or over the water instead of in dry docks
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Hope this help :D
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The correct answer is option B, that is, crossing over.
Crossing over or chromosomal crossover refers to the interchange of genetic substance between the two homologous chromosomes non-sister chromatids, which leads to the formation of recombinant chromosomes at the time of sexual reproduction.
It takes place in the pachytene stage of prophase I of meiosis at the time of a procedure known as synapsis.
a fish tapeworm
an eagle eating a mouse
a tiger eating a gazellean antelope
a redwood tree
Answers
Final answer:
The example of an organism at the second trophic level is an eagle eating a mouse.
Explanation:
An example of an organism at the second trophic level is an eagle eating a mouse. At the second trophic level, organisms are considered primary consumers, as they consume producers such as plants or algae.
Learn more about Second trophic level here:
Final answer:
The second trophic level is comprised of herbivores. From the provided list, the only example of an organism at this level is a cow eating grass, as it directly consumes a primary producer.
Explanation:
In biology, a trophic level refers to the position an organism occupies in a food chain. The second trophic level consists of herbivores which are organisms that directly consume producers - often plants. The example of an organism at the second trophic level from your list is a cow eating grass. The cow, being an herbivore, falls under this category as it consumes grass, a primary producer. All other organisms listed are either producers (redwood tree), parasites (fish tapeworm) or carnivores (eagle, tiger), and therefore, do not belong to the second trophic level.
Learn more about Trophic Levels here:
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