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Hoochie [10]
2 years ago
8

1) Bacteria respond to changes in their environments, such as nutrient availability, by regulating their metabolic pathways. Des

cribe two mechanisms that bacteria use in order to adapt to environmental changes. Include in your answer which mechanism is a short-term or long-term adaptation. (Pg. 364, paragraph 3, sentence 2; paragraph 4, sentence 1)
Biology
1 answer:
nasty-shy [4]2 years ago
4 0

Answer:

Examples:

- Short-term adaptation: feedback inhibition

- Long-term adaptation: regulation of gene expression

Explanation:

Feedback inhibition is a mechanism where the product of a chemical reaction is utilized to modulate its own subsequent synthesis. In bacteria, feedback inhibition allows regulating different metabolic pathways in response to environmental conditions by modulating enzyme activity through enzyme reaction products. Moreover, bacteria may also respond to environmental inputs by long-term changes in gene expression. For example, bacteria contain transcription factors activated during stress, which are able to activate the transcription of particular genes into messenger RNAs (mRNAs) that would subsequently be used to generate particular enzymes by the process of translation. These transcription factors may bind to specific DNA motifs in order to promote transcriptional activity, thereby regulating the production of the corresponding enzyme.

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Driver mutations provide a growth advantage to a tumor cell. which type of mutation is known to accumulate in cancer cells but h
balu736 [363]

Examining tumor tissue for driver mutations can help plan treatments that stop cancer cells from growing.

tumors was EGFR, followed by TP53 (18%), SETD2 (11%) and SMARCA4 (11%). More than 72% (81/112) of cases have mutations in at least one driver gene.

For example, the TP53 tumor suppressor gene is a driver gene, but it is only functional when both alleles of her TP53 gene are mutated. Furthermore, mutations can act as drivers only at certain stages of cancer.

learn more about cancer here.  brainly.com/question/11710623

#SPJ4

5 0
1 year ago
In an ecosystem, a deer consumes grass. What percentage of energy will the deer acquire from the grass? 0. 1% 1% 10% 100%.
katen-ka-za [31]

In an ecosystem, the energy is transferred between the organisms participating in the food webs from producers and consumers.

The percentage of energy transferred to the deer after feeding on the grass is 10%.

The 10% law of the energy states that:

1. The food chain at each trophic level passes or transmits only 10% of the energy and 90% of the energy is lost as heat.

2. The amount of energy at each trophic level decreases, such that the producers if consuming the 100 J of energy, the deers or primary consumers at the first trophic level will have only 10% of the energy.

Thus, the deer will possess only 10% of the energy at each trophic level, following the 10% law.

The correct answer is Option C.

To know more about 10% law, refer to the following link:

brainly.com/question/1367643?referrer=searchResults

7 0
2 years ago
If meteorologists study weather patterns, who studies longer-
Nonamiya [84]

Answer:

climatologists

Explanation:

they are the ones studying the effects of global warming on earth's climate

3 0
2 years ago
What are the possible genotypes for a person with type A blood or type B, or type AB or type O?
postnew [5]

Answer:

The ABO blood group is the case of co-dominance or multiple allelism. Co-dominance may be defined as a non Mendelian inheritance in which both the alleles can express themselves in the heterozygous condition.

The person with blood type A has two possible genotypes with IA IA or IA i.

The person with blood type B has two possible genotype with IB IB or IBi.

The person with blood type has genotype of IAIB.

The person with blood type O has possible genotype is ii.

Thus, there are total six possible genotype of blood group exist in human population.

6 0
2 years ago
If you eat a lot of food, will you gain weight? Explain why or why not.
natka813 [3]
The accurate answer to this is: it depends.

The type of food a person eats can affect him or her differently than another type of food. An additional factor is how active the person is.

For example, if a person does not exercise and eats McDonalds constantly, he/she is more susceptible to weight gain than a person who exercises often and eats healthy foods.In addition, the amount of calories a person eats and burns has an affect on the person's weight gain.

I hope this answers your question!
5 0
3 years ago
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