BIOLOGY HIGH SCHOOL

What are the four factors used to determine population growth? What is the equation?

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Answer 1
Answer: Population growth is determined by four factors: birth rate, death rate, immigration, and emigration. The population growth equation is Births - Deaths + Immigration - Emigration.

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1. Which of the following occurs prior to speciation? A) Organisms of different populations join together. B) Different species share the same space. C) A population is divided. D) A major change on earth takes place. 2. Which of the following must be true of their individuals if two populations are no longer the same species? A) They do not have any of the same genes. B) They do not share any of the same space. C) They do not resemble each other at all. D) They cannot reproduce successfully with each other. 3. How does speciation start to take place on a genetic level between two isolated populations? A) Large numbers of mutations occur. B) Allele frequencies change in different ways. C) New genes are added to one group. D) Recessive alleles become dominant.
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Fossil fuels may one day be depleted. true false

The theory that earth's rocks formed in a global flood followed by uplifting of some rock over a short period is called

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The answer is catastrophism.

Catastrophism is a theory explaining that the Earth has been affected by sudden catastrophes which created its geological features. Some of the proposed catastrophes is a global flood followed by an uplifting of some rock which happened sudden, in a short period of time. It is opposite theory to uniformitarianism which explains that the Earth was formed in slow changes.

Corn smut is a fungus that grows in the ears of corn and changes corn kernels into black, powdery balls of fungus tissue. What would you hypothesize is the significance of the relationship between corn smut and corn?

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Answer:

Pathogenic fungus Ustilago maydis causing a plant disease which is known as corn smut (smuts on maize). This fungus grows in the ears of corn and changes corn kernels into black, and all above parts of the corn.

Corn smut showing a parasitic relationship with corn so, that it is using the corn as a way to spread spores, and causing pathogenic fungus disease.

Answer:

Pathogenic fungus Ustilago maydis causing a plant disease which is known as corn smut (smuts on maize). This fungus grows in the ears of corn and changes corn kernels into black, and all above parts of the corn.

Corn smut showing a parasitic relationship with corn so, that it is using the corn as a way to spread spores, and causing pathogenic fungus disease.

Explanation:

The coded information in a DNA molecule is determined by the….

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The coded information in a DNA molecule is determined by the - sequence of nitrogenous bases in a nucleotide sequence.

DNA

  • DNA is the basic physical and functional unit of heredity.
  • it has coded information that is encoded to mRNA or replicated for new cell formation
  • It consists of a specific sequence of nucleotides at a given position on a given chromosome that codes for a specific protein.
  • each protein is responsible for a specific function or trait
  • each nucleotide has specific sequence of nitrogenous bases in a specific gene sequence.

Thus, The coded information in a DNA molecule is determined by the - sequence of nitrogenous bases in a nucleotide sequence.

Learn more:

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Final answer:

The coded information in a DNA molecule is determined by the sequence of the nucleotides adenine (A), cytosine (C), guanine (G), and thymine (T). This sequence forms genes that provide the instructions for building proteins. This genetic information is structured in a way that allows it to be passed from generation to generation, making DNA the primary source of heritable information.

Explanation:

The coded information in a DNA molecule is determined by the sequence of its nucleotides that bond with the 1-carbon of deoxyribose. In DNA, these nucleotides are adenine (A), cytosine (C), guanine (G), and thymine (T), and they each correspond to a specific amino acid. This nucleotide sequence is termed the genetic code, and it forms genes that provide the instructions necessary to build proteins through processes called transcription and translation.

Each series of three nucleotides, or codon, codes for a specific amino acid. Though there are 64 possible codons, they only specify 20 amino acids, and there are even some, termed 'nonsense codons', that signal for the termination of a protein sequence. This is known as the central dogma of molecular biology, which outlines the flow of genetic information within a cell from the DNA to mRNA to the proteins.

Although the pairing combinations of certain bases are fixed (C-G and A-T), the sequence of nucleotides in the strand can vary, which is what makes DNA the primary source of heritable information. It's worth noting that almost every species on the planet uses this same genetic code, and the differences in their DNA sequences is what accounts for the wide variety in life we see today.

Learn more about Genetic Code here:

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Which of the following statements is true? The buildup of carbon dioxide in the atmosphere causes the greenhouse effect. An increase in pressure causes an increase in reaction rate. The formation of gas bubbles is an indication of a chemical change. all of the above

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All the above ........

D- All of the above  I think

A researcher states that bone density in women is negatively associated with age. This means: A. above average values of age tend to accompany below average values of bone density. B. above average values of age tend to accompany above average values of bone density.
C. below average values of age tend to accompany below average values of bone density.
D. older women aren't any more likely than younger women to have below average bone density.

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This means that the older the woman, the lower the bone density. So older women are more likely to have below average bone density: the correct answer is

A. above average values of age tend to accompany below average values of bone density.
A. above average values of age tend to accompany below average values of bone density.  

If we evaluate the relationship between bone density and age of women, it is described as having a negative relationship or correlation. In simpler terms, in the context of development if one variable increases then the other in response, decreases. Paradoxical. Thus, like in this situation, as women gets older the lesser probability and susceptibility they are to have bone density complications.



Antibodies are produced when the body is exposed to A. white blood cells. B. receptor proteins. C. antigens. D. macrophages.

Answers

Antibodies are produced when the body is exposed to antigens (C).
c. antigens / antigens make you sick duh
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