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2 years ago

Protonema have large surface area to volume ratio you can predict that

Biology

1 answer:

Vaselesa [24]2 years ago

6 0

Answer;

-They are absorptive interfaces with the environment.

Explanation;

-The important point is that the surface area to the volume ratio gets smaller as the cell gets larger. Thus, if the cell grows beyond a certain limit, not enough material will be able to cross the membrane fast enough to accommodate the increased cellular volume.

-The surface area to volume ratio of an object is the relationship between two measurements. It is the ratio of Surface area to volume. It shows the comparison between the size of the outside of an object and the amount inside. Small or thin objects have a large surface area compared to the volume.

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How many different mrna codes correspond to methionine?

Finger [1]

Only one genetic code corresponds to methionine.
<span>Methionine is encoded by a single codon (AUG) in the standard genetic code. The methionine codon is also the most common start codon (message for a ribosome to initiate protein translation from mRNA). As a result, methionine is often incorporated into the N-terminal of proteins in eukaryotes during translation.</span>

6 0

3 years ago

Classify each example or description into the correct evolutionary mechanism.

svetlana [45]

Among evolutionary mechanisms, there can be mentioned non-random matings (1 and 8) , mutations (3 and 6), genetic drift (2, 4 and 5), and genetic flow (7).

<h3>What are evolutionary mechanisms?</h3>

These are different mechanisms that change allelic frequencies and genotypic frequencies conserning the expected ones if populations were under Hardy-Weinber equilibrium.

When these mechanisms are going on, populations evolve.

Among them, we can mention,

Non-random matings
Mutation
Genetic drift
Genetic flow

In the attached files you will find a better explanation about evolutionary mechanisms

Examples classification,

1) non-random matings

2) Genetic drift - founder effect

3) Mutation

4) Genetic drift - founder effect

5) Genetic drift - bottleneck effect

6) mutation

7) Genetic flow

8) Non-random mating

You can learn more about evolutionary mechanisms at

brainly.com/question/937974

brainly.com/question/10471625

brainly.com/question/73154

Download pdf

4 0

2 years ago

Microbial ecology is the study of the relationships between microorganisms and the environment. It is important to understand su

Dimas [21]

Answer:

The microorganism–microorganism or microorganism–host interactions are the key strategy to colonize and establish in a variety of different environments. These interactions involve all ecological aspects, including physiochemical changes, metabolite exchange, metabolite conversion, signaling, chemotaxis and genetic exchange resulting in genotype selection. In addition, the establishment in the environment depends on the species diversity, since high functional redundancy in the microbial community increases the competitive ability of the community, decreasing the possibility of an invader to establish in this environment. Therefore, these associations are the result of a co-evolution process that leads to the adaptation and specialization, allowing the occupation of different niches, by reducing biotic and abiotic stress or exchanging growth factors and signaling. Microbial interactions occur by the transference of molecular and genetic information, and many mechanisms can be involved in this exchange, such as secondary metabolites, siderophores, quorum sensing system, biofilm formation, and cellular transduction signaling, among others. The ultimate unit of interaction is the gene expression of each organism in response to an environmental (biotic or abiotic) stimulus, which is responsible for the production of molecules involved in these interactions. Therefore, in the present review, we focused on some molecular mechanisms involved in the microbial interaction, not only in microbial–host interaction, which has been exploited by other reviews, but also in the molecular strategy used by different microorganisms in the environment that can modulate the establishment and structuration of the microbial community.

Explanation:

8 0

3 years ago

Tree rings will be BLANK when nutrients are scarce for the tree what is the blank?

jekas [21]

Normally tree rings will disappear, damage, or go missing when the tree doesn't have enough nutrients, another factor that contributes to that is drought.

4 0

3 years ago

Which of the following tools was responsible for advancing our knowledge of cells over the past 400 years?

damaskus [11]

Answer: This is life science right? If it is the answer is the microscope

Explanation:

6 0

2 years ago

Read 2 more answers