BIOLOGY HIGH SCHOOL

In 1668, Francesco Redi conducted an experiment with jars of meat. This experiment was noteworthy because it _____.proved that meat should be refrigerated
disproved that life can generate from nonlife
proved that meat does produce maggots
disproved that meat was bad for you

Answers

Answer 1
Answer:

Answer: Disproved that life can generate from nonlife.

Explanation:

  • The theory of spontaneous generation stated that life could arise from nonliving objects.
  • To test this theory, Redi conducted an experiment in which he took jars and placed a piece of meat in them. He covered some jars with a muslin cloth and left some of them open.
  • After some time he observed that maggots developed only in the open jars and not in the covered ones.
  • From this, he was able to conclude that life did not spontaneously originate from non-living matter because had it been the case, the covered jars would also have the maggots but since the flies could no enter the jar there were no maggots in them.
Answer 2
Answer:

Answer:

Disproved that life can generate from nonlife.

Explanation:

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What is some conclusive evidence that organisms of two different species share a common ancestor?

Answers

Use invertebrates as an example. Both annelids and mollusks are bound to have a common ancestor who lacked a backbone. 

A cross is performed between a plant with genotype ttyy and a plant with genotype ttyy. if the two genes independently assort, what is the probability, expressed as a decimal, that the offspring will be homozygous for gene t and homozygous for gene y?

Answers

The given question says a cross is performed between two homozygous recessive individual, both having genotype ttyy.

In any case, the gametes produced by these plants would be recessive for the trait and the cross between these individual would always give rise to a homozygous recessive progeny.

Hence, in any case, the progeny would be homozygous for allele t, and allele y.

So, the probability of offspring having homozygous for gene t and homozygous for gene y would be 100% or 1.

Soil composition is not subject to change. Please select the best answer from the choices provided T F

Answers

This is false!

if it was not subject to change then on the one hand all soil everywhere would be the same (since it couldn't have changed) and there would be no need for soil fertilization or fear of erosion. Instead, over-farming can make soil less fertile - and this is a change.

answer is false. hopefully this helped !!!

Plants exhibit phototropism because _____.long roots help plants absorb more water and nutrients
they need the Sun's energy in order to produce food
water is essential to a plant's growth
strong stems are more wind resistant

Answers

The answer is they need the Sun's energy in order to produce food

Phototropism is plant growth in a response to light. In order to survive, plants need Sun's energy. During photosynthesis, carbon dioxide and water are converted into glucose and oxygen using the energy of sunlight. To get more light, plants usually grow in the direction of light, so more light could be absorbed and used in photosynthesis. Phototropism enables plants to absorb more light and that way use Sun's energy to produce food.

What is translation, in biology

Answers

Answer:

Translation is the process of translating the sequence of a messenger RNA (mRNA) molecule to a sequence of amino acids during protein synthesis. The genetic code describes the relationship between the sequence of base pairs in a gene and the corresponding amino acid sequence that it encodes.

Final answer:

Translation in biology is the process by which genetic information is converted from mRNA into protein within the ribosome, involving sequential reading of mRNA bases (codons) to assemble amino acids into proteins. Errors in this process can potentially lead to hereditary and age-related diseases.

Explanation:

In biology, translation is a critical process that forms part of the central dogma of molecular biology, which is DNA --> RNA --> Protein. More specifically, translation is the process by which genetic information is converted from mRNA into protein. This process occurs within the ribosome, a cellular component made up of rRNA and proteins.

To break down the process: mRNA (which has been transcribed from DNA) moves from the nucleus to a ribosome. Once at the ribosome, the information contained in the mRNA is translated into a sequence of amino acids, forming a protein. This is done by reading sets of three mRNA bases, known as codons, which correspond to specific amino acids. tRNA molecules then bring the necessary amino acids to the ribosome in accordance with the sequence of codons in the mRNA.

Any errors in the process of translation can result in the production of incorrect proteins. This, in turn, has the potential to lead to a variety of hereditary and age-related diseases, given the crucial roles proteins play in our bodies.

Learn more about Translation here:

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A father with type B blood and mother with type A blood have a child. Their child, while in a biology lab at school, tests her blood and discovers she has type O blood. Does she have any concerns about her parentage?A. Yes, because she should have type AB blood if they are her true biological parents.
B. No, because type O blood is possible if her parents both had genotypes AB.
C. No, because both of her parents could be heterozygous.
D. Yes, because both of her parents might be heterozygous.
E. No, because blood types A and B are codominant.

Answers

C. you can have an A or B blood type but also have recessive genes that could give an O if parent were heterozygous, like if the mother was A-i (i being recessive gene that could give 'O') and the father was B-i then if you do a punnett square then you can see that there's a 25% chance she has i-i or type O blood. 
C. if the father was B, the mother was A, and the child had O, then the father had to be Bi and the mother had to be Ai
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