Select all that apply. Even though a rock and a dog are both made out of atoms, one is considered alive and one isn't. Select all of the characteristics that are present in living organisms. ability to reproduceability to move ability to pass on genetic information ability to use energy ability to maintain an internal balance

Answers

Answer 1

Answer:

Answer:

The correct answer is ability to reproduce, ability to pass on genetic information, ability to maintain an internal balance and ability to use energy.

Explanation:

Biologist have tried to answer the differences between living and non-living beings and have proposed characteristics that are present in living organism which are :

cellular organization.
reproduction
should have heredity material-which can be passed
perform metabolism-reactions and use energy
homeostasis-maintains internal balance
growth.

Thus, selected options are the correct answer.

Answer 2

Answer: Ability to reproduce
Ability to pass on genetic information
Ability to use energy
Ability to maintain an internal balance (homeostasis)

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The scientific method could not be used to study which of the following phenomena? the effect of daily exercise on gerbils the authenticity of UFO sightings whether Vitamin C consumption reduces cold symptoms the effects of second-hand smoke on household pets

Answers

The correct answer is B. The authenticity of UFO sightings

Explanation:

The Scientific Method refers to a procedure widely used in science that implies observation, measurement and a hypothesis that is formulated based on observations and then tested or proved through different methods. Because of this, phenomena that can be studied by using the scientific method are those that can be somehow controlled and tested and that are objective rather than subjective.

In the case of the phenomena "The authenticity of UFO sightings" this cannot be studied using the scientific methodology because this cannot be constantly observed, controlled or tested and also the "authenticity" is subjective rather than objective which makes almost impossible to observe the phenomena consistently, create a hypothesis and then prove it and therefore the Scientific Method cannot be applied to this phenomena.

The scientific method could not be used to authenticate UFO sightings. There is no way to set up a control and variable.

If a tRNA molecule has a anticodon which reads GCU, what was the codon of the mRNA molecule

Answers

Answer: The codon of the mRNA molecule is CGA.

tRNA ( transfer RNA) molecule carries a sequence of three bases in its anticodon loop, which are complementary to the mRNA ( messenger RNA) codon. mRNA codon codes for a particular amino acid like CGA in this case codes for Arginne ( R), which is carried by the tRNA molecule in its amino acid attachment site.

When anticodon matches with the codon in the mRNA, amino acids are assembled in a particular order, which is dictated by the codon of mRNA.

Thus, the codon of mRNA for the anticodon GCU is CGA

So it would be the complimentary base pairing of the anticodon, making the mRNA codon:
CGA

Responses of the immune system to usuallyharmless environmental substances are known as
(1) antigen production
(2) chromosomal mutations
(3) pathogens
(4) allergies

Answers

The immune system over-reacts to normally harmless substances, the name of a substance or substances that cause these over-reactions are called allergies

Peacocks display their brilliant plumage. What does this display communicate?

Answers

The display communicates that the males are from their own species and that they may not be from the same species group as the females.

The frequency of two alleles in a gene pool is 0.1 (A) and .9 (a). What is the percentage in the population of heterozygous in individuals? of homozygous recessives?

Answers

The frequency of two alleles in a gene pool is 0.1 (A) and .9 (a). The percentage in the population of heterozygous in individuals is 18%, and the percentage of homozygous recessives is 81%.

The frequency of two alleles in a gene pool is 0.1 (A) and .9 (a). Hence,

p = 0.1 and q = 0.9

The equation for the Hardy-Weinberg principle is:

p² + 2pq + q² = 1

p² + 2pq represents the frequency of heterozygous individuals and q² represents the frequency of homozygous recessives

Substituting the values:

p² + 2pq + q² = 11 × 0.01 + 2 × 0.1 × 0.9 + 0.81 = 1 = 0.01 + 0.18 + 0.81= 1

Therefore, the percentage of heterozygous in individuals is:

p² + 2pq = 0.18 × 100% = 18%

And the percentage of homozygous recessives is:

q² = 0.81 × 100% = 81%

Thus, the percentage in the population of heterozygous individuals is 18%, and the percentage of homozygous recessives is 81%.