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loris [4]
3 years ago
7

Which scientist showed that organisms did not grow spontaneously in beef broth

Biology
2 answers:
Darina [25.2K]3 years ago
6 0

Answer:

Louis Pasteur

Explanation:

Louis Pasteur, contrary to the theory advocated by Needham (theory of ambiogenesis. This theory defends the idea that life can be spontaneously generated from inanimate matter), placed broth in a long-necked glass balloon that It was then curved into an "S" shape. This broth was boiled and remained sterile for a long time even with the glass open. There was no microorganism in this broth.

As the vial has been sterilized and the neck has been bent, the microorganisms present in the air are retained in the curve. It was important to keep the bottle open because proponents of the theory of abiogenesis claimed that a glass with a lid prevents the entry of the "active principle," according to them a nonmaterial life force. With the experiment, Pasteur proved that living things originate from other pre-existing ones, in this case air microorganisms.

astraxan [27]3 years ago
5 0
Louis Pasteur <span>showed that organisms did not grow spontaneously in beef broth.</span>
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A population distribution shows _______.
Nezavi [6.7K]

Answer:

Explanation:

A population distribution shows _______.

a. the distribution of age groups within a population

b. the amount of organisms in a unit area

c. the total number of organisms in a population

d. where and in what arrangement organisms are located Please select the best answer from the choices provided

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A student proposes that left-handedness is a recessive trait and is hidden in much of the human population. a survey of his clas
djverab [1.8K]

The frequency of the recessive allele for the left handle will be in this case equal to q^2 = 0.25 >> q = 0.5.

<h3>What is the Hardy Weinberg principle?</h3>

The Hardy Weinberg principle is a model used in population genetics to estimate genotypic and allele frequencies.

The Hardy Weinberg principle states that the sum of the dominant allele and the recessive allele in a population is equal to 1 (p + q = 1).

This principle also states p2 + q2 + 2pq = 1, where p^2 is the dominant homo-zygous allele, 2pq the heterozygous frequency and  q^2 the recessive homo-zygous frequency.

In this case, 9 individuals represent 25% (q^2 = 0.25), thereby the feecuency of q is equal to √0.25 = 0.5.

Learn more about the HW principle here:

brainly.com/question/1365714

6 0
2 years ago
PLEASE HELP ME!!! I NEED THIS SO I CAN PASS MY CLASS AND I ONLY HAVE TEN MINS LEFT!!!! I WILL MARK BRAINILIST!!!
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What usually causes creep?
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What structure of protein is the amino acid sequence PLEASE HELP
IgorLugansk [536]

Answer:

primary structure

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3 years ago
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