Which scientist showed that organisms do not grow spontaneously in beef broth?

Answer:

The autotrophs are the organisms that uses sunlight (radiant energy) to perform the process of photosynthesis to fix carbon in the form of sugars. They generate ATP by breaking down the sugar using oxygen, which means they perform cellular respiration.

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Answer:

The hydrophobic effect is considered to be the major driving force for the folding of globular proteins. It results in the burial of the hydrophobic residues in the core of the protein. It is exemplified by the fact that oil and water do not mix and was described well by G. S. Hartley in 1936 .

Answer:

the answer is A

The bears fur is white to help it blend in and keep warm. suitable for the environment it lives in

Answer:

A. Structural adaptation

Explanation:

The white fur of a polar bear is an example of a: Structural adaptation

Air pollution is defined as the pollution of the air and its surroundings due to air pollutants where chlorofluorocarbons (CFCs) are the most common source of air pollution. So, the correct option is B.

Chlorofluorocarbons (CFCs) are defined as non-toxic chemicals containing chlorine, fluorine and carbon that are extensively used in the manufacture of refrigerants, foams, sprays, etc. Chlorofluorocarbons destroy the Earth's protective ozone layer by affecting its ability to shield harmful UV rays from the Sun, which is why they are banned because of their dangerous effects on ozone.

CFCs are emitted which get accumulated in the earth's atmosphere causing greenhouse effect which causes melting of ice and rise in sea level leading to rise in temperature.

Therefore, the correct option is B.

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Answer:

cleavage of MIC at the cell surface by a protease

Explanation:

The immune system refers to a complex network of cells and proteins that function to eliminate potentially tumorigenic cells on a daily basis. However, cancer cells show mechanisms in order to escape immune responses. MHC class I chain-related proteins A and B (MICA and MICB) are expressed in normal and tumorigenic cells where they act as ligands of the NKG2D receptor. The expression level of these proteins (MICA and MICB) is finely regulated by the activity of metalloproteinases (i.e., by protease-mediated cleavage), but this mechanism is altered in cancer cells. Recently, drug therapies that stimulate NKG2D mediated tumor destruction by reducing the cleavage of MICA and MICB from the surface of cancer cells have been developed.

Answer:

Jean Baptiste Lamarck

Jean Baptiste Lamarck

His work inspired Darwin's ideas of natural selection. Lamarck also came up with an explanation for vestigial structures. His evolutionary theory was rooted in the idea that life started out very simple and developed over time into the complex human form

Explanation:

Little hope of helping you

Explanation:

the answe would be CCGGTTACFGAGACT

Answer:

Amino acids are organic compounds that contain amino and carboxyl functional groups, along with a side chain specific to each amino acid. The key elements of an amino acid are carbon, hydrogen, oxygen, and nitrogen, although other elements are found in the side chains of certain amino acids.

Explanation:

Answer:

I dont know the first one but the last one is acidic chyme. Hydrochloride is what I put as the first and its wrong, acidic chyme is right as the second one.

Explanation:

Answer:

First one: Bicarbonate Ions

Second one: Acidic Chyme

Explanation:

...

Answer:

aug = met, which stands for methionine

Answer:

AUG is the start of the codon

Explanation:

Answer:

in sexual reproduction the offering we see the same number of chromosome from each parent

Answer:

D

Explanation:

Proton: positive charge

Electron: negative charge

Neutron: neutral charge

There are protons and neutrons in the nucleus, so there will always be a positive charge in the nucleus

The question is incomplete, the complete question is;

Census data show that the human population

doubled from 2.65 billion in 1953 to 5.3 billion

in 1990. If it continues to double at this rate,

the human population could reach 10 billion

by the year 2020. Which BEST explains how

this rate of human growth can harm the

environment on which humans depend?

A. by gradually making up more available energy

B. by using resources faster than they can be

replaced

C. by changing how matter cycles through an

ecosystem

D. by increasing the variety of ecosystems that are

Answer:

by using resources faster than they can be

replaced

Explanation:

As population of the world continues to grow, there is greater demands for resources which are obtained from the environment such as crude oil for energy, solid minerals for various applications, wood for furniture etc.

Demand for these materials increase exponentially as population increases thus they are extracted at a faster rate than nature can replace them. This will eventually harm the environment on which humans depend as population increases.

Answer:

A. Tissue

Explanation:

The cells join together to form tissues. So, option (A) is the correct answer.

Answer:

A. Tissue

Explanation:

Just as cells join together to form tissues

Answer:

D. decrease the amount of erosion along the hillside

Explanation:

When logging operations are conducted on a hillside near a river, the operations will decrease the amount of erosion along the hillside because the tree's root hold soil particles and does not allow them to erosion. We can see in many region that there is presence of vegetation on the bank of river or stream in order to prevent erosion of soil so that's why we can say that logging operations causes decrease erosion along hillside.

Answer: Asexual Reproduction

Explanation:

The diagram below represents meiosis a reproductive process, used for the development of gametes, hence option B is correct.

It is the cell cycle stage in which the chromosome number of the parent cell gets reduced in the daughter cell, it is used to produce haploid gametes.

While mitosis is the cellular stage in which diploid organisms are used to increase the cell numbers of somatic cells it does not generally occur in germ cells of humans. As similar to mitosis asexual reproduction also produces identical cells.

Meiosis proceeds in the germ cell, where diploid organism produce haploid cells which are fertilized to form the diploid zygote.

Therefore, the given diagram in the question represents the meiosis reproductive process.

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Answer:

I think it's b - random mutations... >3

A change in allele frequency is directed by natural selection. So the correct answer is option A.

The allele frequency (also known as gene frequency) refers to the frequency at which a particular allele appears in a population. The term evolution in population genetics refers to a variation in the frequency of a particular allele within a population. The frequency ranges from 0 (zero alleles present in no individuals) to 1 (all alleles present in all individuals). The gene pool refers to the sum of all alleles at all the genes in a population.

Natural selection affects the phenotype, or observable characteristics, of an organism. Phenotype is usually largely determined by genotype (the number of alleles, or versions of genes, that an organism carries).

When the phenotype produced by specific alleles helps an organism survive and multiply better than its neighbors, natural selection can spread the beneficial alleles from generation to generation – in other words, it causes microevolution.

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Answer:

[tex]4\frac{1}{11}[/tex] hours

Explanation:

Given

See attachment for graph

First, we determine the equation of the graph.

Pick any two points from the graph

[tex](h_1,d_1) =(18,168)[/tex]

[tex](h_2,d_2) =(36,366)[/tex]

Calculate the slope (m)

[tex]m = \frac{d_2 - d_1}{h_2 -h_1}[/tex]

This gives:

[tex]m = \frac{366 - 168}{36 -18}[/tex]

[tex]m = \frac{198}{18}[/tex]

[tex]m = 11[/tex]

The equation is then calculated as:

[tex]d = m(h - h_1) + d_1[/tex]

This gives:

[tex]d = 11(h - 18) + 168[/tex]

Open bracket

[tex]d = 11h - 198 + 168[/tex]

[tex]d = 11h-30[/tex]

So, the number of hours to earn $15 is:

[tex]d = 11h-30[/tex]

[tex]15 = 11h -30[/tex]

Collect like terms

[tex]11h = 15 + 30[/tex]

[tex]11h = 45[/tex]

Solve for h

[tex]h = \frac{45}{11}[/tex]

[tex]h = 4\frac{1}{11}[/tex]

Answer:

it's called geothermal energy

Answer:

True

Explanation:

This is true because the cycle goes to Oxygen Glucose then Cellular Respiration to Carbon Dioxide Water then to photosynthesis. This cycle is like this because Photosynthesis converts carbon dioxide and water into oxygen and glucose. All in a cycle :)

Answer:

A. True

Explanation:

Yes, the products of photosynthesis are used in cellular respiration. The products of cellular respiration are used in photosynthesis.

60 predator prey grap populationin the peak.

Answer:

Meat is a major source of protein, as well as iron, zinc, and vitamin B12. Meats, poultry, and fish include beef, chicken, pork, salmon, tuna, shrimp, and eggs. The meat group is one of the major compacted food groups in the food guide pyramid.

Explanation:

Your welcome!

Brainlist Please! :)

Answer:

A

Explanation:

Photosynthesis produces carbon dioxide, while cellular respiration produces oxygen

Answer:

• neutrons

• protons

Explanation:

The nucleus is made up of two types of subatomic particles, that is the protons and neutrons.

Answer:

neutrons and protons

Explanation:

Answer:

A

Explanation:

BECAUSE IT HAPPENS DURING MENSTRUAL CYCLE

Answer:

The sudden increase in lh hormone

Explanation:

In women, ovulation of mature follicles on the ovary is induced by a large burst of LH secretion - the preovulatory LH surge.