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Andreas93 [3]
3 years ago
7

In a organism, the brain directs the body how to respond to stimuli from the environment. in a cell, this function is performed

by the-
Biology
1 answer:
prohojiy [21]3 years ago
6 0

Answer:

Nucleus

Explanation:

In eukaryotic cells, the nucleus is a membrane-bound structure that contains the genetic material, which is expressed in response to cell stimuli (i.e., environmental stimuli). This genetic material consists of genes that are expressed in response to cell signaling events. For example, the transcription factors that are found in the cytoplasm are activated after receiving a signal from receptors localized in the cell membrane, when these membrane receptors bind to specific signaling molecules. Subsequently, these transcription factors are translocated into the nucleus to interact with DNA promoter regions in order to activate the expression (transcription) of target genes capable of responding to an environmental stimulus.

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Energy enters a food chain as heat energy and leaves it as light energy.
hjlf

Answer:

The statement that says "Energy enters a food chain as heat energy and leaves it as light energy" is false.

Explanation:

The energy that enters the food chains, first of all, is light energy from the sun. This energy is assimilated by plants to convert it into chemical energy, through  photosynthesis.

When energy flows from producers, plants, to consumers and decomposers, a great amount of <u>energy is lost, in the form of </u><u>heat energy</u>, due to the metabolism of living beings. Additionally, the second law of thermodynamics states that when energy passes from one form to another it leads to disorder in the system, which would also explain the loss of energy.

The true statement is "Energy enters a food chain as <u>light energy</u> and leaves it as <u>heath energy"</u>.

8 0
2 years ago
What phase does not occur between meiosis I and meiosis II, which results in haploid daughter cells?
sattari [20]

Answer:

A. Interphase

Explanation:

Interphase happens to the cell before meosis 1.

7 0
2 years ago
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How many nucleotides are there in a codon?
cestrela7 [59]

Answer:

three

Explanation:

Each codon consists of <em>three nucleotides</em>, usually corresponding to a single amino acid. The nucleotides are abbreviated with the letters A, U, G and C.

6 0
3 years ago
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Economic importance of tilapia fish
dezoksy [38]

Answer:

Tilapia is one of the most productive and internationally traded food fish in the world. The production of farmed tilapia is among the fastest expanding food sectors in the world. Nile tilapia ( Oreochromis niloticus) is the most cultured freshwater species among the farmed tilapia and contributes about 71% of the world total tilapia production.

Tilapia is one of the most important farmed fish species worldwide (FAO 2018) and an important source of protein (Fitzsimmons 2000;Hai 2015). Due to its sequenced genome (Conte et al. 2017), easy reproduction, efficiency in adapting to diverse diets, high resistance to diseases and handling practices, and high tolerance of a wide variety of husbandry conditions, it is considered an ideal model in toxicological research.

Explanation:

I hope it helps

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2 years ago
Decomposers are necessary in an ecosystem because they
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They return nutrients from waste or dead organisms back into the ecosystem to be recycled.
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3 years ago
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