BIOLOGY HIGH SCHOOL

The loss of an organism at the bottom of a food chain negatively impacts all organisms in the chain

Answers

Answer 1
Answer:

Answer:

true

Explanation:

i just took the test.
Answer 2
Answer: YES BECAUSE THE BOTTOM OF THE FOOD CHAIN IS THE PRODUCER AND  THAT IS THE GRASS AND THE ORGANISM THAT EAT THE GRASS  WOULD DIE  BECAUSE THAT ORGANISM WOULDNT BE ABLE TO EAT AND THEN THE SAME THING WILL HAPPEN TO THE OTHERS.

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A homozygous tall (dominant) pea plant is crossed with a short (recessive) plant. The probability that an F1 plant will be tall isA. 100%. B. 50%. C. 75%. D. 25%.
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A biology class wanted to study the effect of different materials on the melting rate of ice. They placed pieces of ice, each with a mass of 10g, onto trays. Group 1 was covered in plastic, group 2 was covered in paper, group 3 was covered in aluminum, and group 4 remained uncovered.Each piece of ice was allowed to melt for 15 minutes. Then final mass of the ice, minus the melted water, was recorded at the end of the experiment. Which of the following is the control group in this experiment?

A female loggerhead turtle was fitted with a tracking device. The data showed the turtle spending all of May, June, July and August offshore of Melbourne Beach, Florida. What would be the most logical explanation for this? she was lost she was waiting for the temperatures to cool off she was mating and laying eggs she was eating a lot of algae

Answers

Well, it could possibly be, "She was maiting and laying eggs" Because,
If it was maiting, it will stay in the same place... And especially if it layed eggs, the mother will stay with her eggs, until they hatch... 
So, thats the only logical explanation... :)
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Hope this helped! :)
Any more questions, please feel free to ask :)

Ticks carry bacteria that cause Lyme disease. Ticks do not get Lyme disease, but they can transfer the bacteria to humans, who can get the disease. Which of the following statements best describes the relationships among the bacteria, the ticks, and the humans?a. The relationship between the bacteria and the ticks is competition, and the relationship between the ticks and the humans is predation.
b. The relationship between the bacteria and the ticks is competition, and the relationship between the ticks and the humans is parasitism.
c. The relationship between the bacteria and the ticks is commensalism, and the relationship between the ticks and the humans is parasitism.
d. The relationship between the bacteria and the ticks is commensalism, and the relationship between the ticks and the humans is predation.

Answers

The answer is c. The relationship between the bacteria and the ticks is commensalism, and the relationship between the ticks and the humans is parasitism.


Commensalism is a relationship between two organisms in which only one of them has benefit, and the other one is not affected. Bacteria are carried by ticks, so bacteria have a benefit from the relationship. Tick is not affected by bacteria, it does not get Lyme disease. Therefore, the relationship between ticks and bacteria is commensalism.

The relationship between ticks and humans is parasitism. Parasitism is non-mutual relationship between two organisms in which one of them (tick) benefits at the expense of the host organism (human).

How does carbon cycle within the ecosystem

Answers

The carbon cycle is when carbon travels from the atmosphere into organisms and the earth then back into the atmosphere. Within the ecosystem it helps plants make food, by taking carbon dioxide from the air. The animals eat the food, the carbon is either stored in their bodies or released as carbon dioxide (CO2) through the process of respiration.

Where are the proteins for a cell made?

Answers

The proteins for a cell made in the cells ribosomes

Further explanation

Proteins are made inside the cells. Protein synthesis is the condition where a cell makes a protein. The instructions how to make a protein are held in DNA molecules inside the cell nucleus. The two major stages in making a protein are called transcription and translation.

Transcription is when the cell makes a copy or "transcript" of the DNA. The copy of DNA is called RNA. It is used in the next step, which is called translation.

The next step in making a protein is called translation, where the RNA is converted or "translated"  into a amino acids sequence that makes up the protein.

The proteins for a cell made in the cells ribosomes.

When the cell needs to make a protein, mRNA created in the nucleus. Then mRNA is sent out of the nucleus and to the ribosomes. When it is time to make the protein, the two subunits come together and combine with the mRNA. Then the subunits lock onto the mRNA and it start the synthesis of protein.

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Answer details

Grade:  9

Subject:  biology

Chapter:  proteins

Keywords:  transcription, translation

The ribosomes are the organelles in which the proteins are made. Except for red blood cells (RCBs), all the other cells in the body make protein as each cell is made up of protein. The DNA present in the nucleus instructs the ribosomes in the cells to synthesize proteins.

Further Explanation:

The ribosomes are involved in the synthesis of proteins by taking part in the translation process. During translation, the nucleotide triplet or codon sequence present in the messenger RNA is read by the ribosome and translated into an amino acid sequence to form proteins.

The ribosomes are composed of one large subunit which creates a polypeptide chain that links the amino acids together and a small which reads the codon sequence in the mRNA. They are present in both eukaryotes and prokaryotes. The prokaryotes have no membrane-enclosed organelles, therefore the ribosomes are found floating free in the cytosol. While in eukaryotes, the ribosomes are present within the nucleus, surrounding the endoplasmic reticulum, as well as free ribosomes in the cytoplasm of the cell.

In eukaryotes, the large and the small subunit of the ribosome has been identified as 60S and 40S subunit respectively whereas, 50S and 30S are the respective large and small subunits present in the prokaryotes.

The overall protein synthesis involves two processes: transcription and translation. During transcription, the information present in the DNA is copied and transcribed into mRNA. This mRNA sequence is used during translation to be translated into desired protein.

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1. Learn more about physical fitness brainly.com/question/1027368

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Answer Details:

Grade: High School

Subject: Biology

Chapter: Protein Synthesis

Keywords:

Ribosomes, protein synthesis, translation, mRNA, codon, membrane-enclosed organelles, prokaryotes, eukaryotes, transcription.

 

In a 10 m2 ecosystem, there are 60 raccoons. What is the population density of raccoons?6 per m2
10 per m2
20 per m2
40 per m2

Answers

Answer:

The correct answer is option A, 6(Racoons)/(m^2)\n

Explanation:

The Population density of any species in an ecosystem is equal to the number of that species living in one unit of area.  

Thus , population density can be represented as  

(Total population )/(Total area of habitat) \n

Substituting the given values in above equation, we get -

= (60)/(10) (Racoons)/(m^2)\n= 6 (Racoons)/(m^2)\n
The answer is 6 per m2.

A population density is the number of animals per 1 m2.
So, this problem can be solved by using a proportion:
If 60 raccoons live in 10 m2, how many raccons will live in the 1 m2.
60 raccoons : 10 m2 = x raccoons : 1 m2
60 raccoons : 10 = x raccoons
x raccoons = 6 raccoons

Thus, the population density is 6 raccoons per m2.

Compare and contrast a hypothesis and a theory

Answers

A hypothesis is proposed explanation that's made on the basis of limited evidence as a starting point for further scientific investigation.

A theory, and I suppose you're referring to the scientific theory, is a well-substantiated explanation for some aspect of the natural world. It's based on a large body of facts that have been repeatedly confirmed through extensive observation and experiment.
Compare and Contrast Theories and Hypotheses. A hypothesis is a possible scientific explanation of an observation or set of observations.
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