How does modern classification differ from the systems used by Aristotle and Linnaeus?
A. It uses microscopes to examine tiny structures that organisms may have.
B. It looks at fossils and how modern organisms could be related to many of them.
C.All of the above are correct.
D. It looks at similarities and differences in DNA found in the cell of organisms.

Answer:

If the DNA was part of a gene for a different protein, the DNA sequence would be different. Each gene has a unique sequence of DNA that provides the instructions for building a specific protein.

Changes in the DNA sequence would lead to changes in the amino acid sequence of the protein, resulting in a different protein with different functions. Additionally, different genes have different regulatory elements that control when and where the gene is expressed, as well as the level of expression.

Therefore, the DNA sequence and regulatory elements of a gene for a different protein than crystallin would be different from the DNA sequence and regulatory elements of the crystallin gene.

Hope this helps!

An experiment to show that plants get energy from air soil and water is to place pants into different types of air soil and water conditions and observe the outcomes of these independent variables on the plant growth, which in this case would represent the dependent variable to be measured.

An experimental science procedure is any class of process used to test a hypothesis during a scientific investigation, which involves collecting data to accept or reject this plausible explanation.

An experimental science procedure is based on different types of variables that remain unchanged (independent) and those dependent variables that are modified along with the experiment.

Therefore, with this data, we can see that an experimental science procedure is based on the placement of the subject of an investigation under different conditions in order to collect data and make assumptions about the outcomes.

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Answer: The important point is that the surface area to the volume ratio gets smaller as the cell gets larger. Thus, if the cell grows beyond a certain limit, not enough material will be able to cross the membrane fast enough to accommodate the increased cellular volume. ... That is why cells are so small.

Explanation: because they can absorb nutrients much more efficiently. Because they are smaller they can efficiently absorb enough food. ... When a cell doubles in size the volume increases much more then the surface area, which is why large cells cannot receive enough food efficiently for their volume. Cells are small because they are more efficient as smaller entities. Information within small cells is transmitted more quickly and efficiently than within larger cells. ... Thus a higher cell surface area-to-volume ratio, i.e., smaller cell size, is desired for most efficient cellular activity.

The cells are so small because their small size allows them to take in food and get rid of the waste.

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Answer:

The answeer is both B and D.

Answer:

Nucleic Acid

Explanation:

DNA is made up of the nucleic acids Adinine, Thymine, Cytosine, and Guanine.

Answer:

Mosses are non-vascular plants with about 12,000 species classified in the Bryophyta. Unlike vascular plants, mosses lack xylem and absorb water and nutrients mainly through their leaves.

Explanation:

Given,

H = brown hair

h = red hair

Mother: Hh (heterozygous It’s given)

Father: hh (homozygous, given)

Homozygous means alike allele whereas heterozygous means unalike or distinct from one another.

So, in the punnet square below, it is shown that there is a 50/50 chance for the offspring to have red hair.

Ratio is 1:1.

But there is also another probability for the offspring to be like their mother, have the dominant gene of black hair overruling the recessive gene of red hair.

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*Oxygen is an essential element in the atmosphere that helps living organisms stay alive.

*Tress gives Earth oxygen through the process of photosynthesis. Plants, such as trees, capture sunlight and use it to split carbon dioxide and water. The product of it is sugar which releases oxygen into the atmosphere as a by-product of the process.

Answer: false research shows that hand washing should last a minimum of at least 20 seconds

I did a science experiment on hand washing last year and from what I found hand washing should at least last 20 seconds

The cell membrane is selectively permeable and it doesn't allow ions and organic molecules to pass, but non-polar molecules can diffuse across the membrane, which is called passive or simple diffusion. An example of this is the gas exchange of oxygen and carbon dioxide that occurs in the alveoli.

Answer:

Proportion of heterezygous progeny = 3/4

Explanation:

According to Mendel's law of independent assortment which states that the alleles of two (or more) different genes get sorted into gametes independently of one another. This means that the allele a gamete receives for one gene does not influence the allele received for another gene.

Gametes produced by the fishes assuming independent assortment:

Fish 1 = aB, ab, aB, ab

Fish 2 = AB, Ab, aB, ab

Progeny from cross:

aBAB, aBAb, aBaB, aBab

abAB, abAb, abaB, abab

aBAB, aBAb, aBaB, aBab

abAB, abAb, abaB, abab

Proportion of heterezygous progeny = 12/16 = 3/4

Answer:

Phospholipids form the basic structure of a cell membrane, called the lipid bilayer. Scattered in the lipid bilayer are cholesterol molecules, which help to keep the membrane fluid consistent. Membrane proteins are important for transporting substances across the cell membrane

Phospholipids form the basic structure of a cell membrane, called the lipid bilayer. Scattered in the lipid bilayer are cholesterol molecules, which help to keep the membrane fluid consistent. Membrane proteins are important for transporting substances across the cell membrane.

Cell is defined as the base of life as it is the structural as well as functional unit of life. Cell is made up of pre existing cells and the cell contain various cell organelles such as mitochondria, endoplasmic reticulum, ribosomes, golgi appratus, nucleus, and cytoplasm.

Basically, cell is of two type one in prokaryotic and another one is eukaryotic. The prokaryotic cell is known as pre mature cells as they do not contain cell organelles and eukaryotic cell are known as advanced and developed cells as they contain several cell organelles.

The unicellular animals are made up of single cell and all the functions carried out in a single cell like amoeba and multicellular organisms are made up of multiple cells and there is specific cell for specific functions.

Therefore,Phospholipids form the basic structure of a cell membrane, called the lipid bilayer. Scattered in the lipid bilayer are cholesterol molecules, which help to keep the membrane fluid consistent. Membrane proteins are important for transporting substances across the cell membrane.

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Explanation:

A) Food and Nutritional Board of the National Academy of Sciences-National Research Council.

The Food and Nutrition Board (FNB) of the National Academy of Sciences-National Research Council established the Recommended Dietary Allowances (RDAs) in 1943. The RDAs provide guidance on the amount of nutrients that are needed daily by the average healthy person to maintain good health. The RDAs are periodically reviewed and revised to reflect the latest scientific knowledge on nutrition. Today, the FNB is part of the National Academies of Sciences, Engineering, and Medicine and continues to provide guidance on nutrition and dietary intake

The generation time of the bacteria in the following culture is approximately 3.01  hours.

To determine the generation time of bacteria, we can use the formula:

Generation time (t) = (Time elapsed (T) / Number of generations (n))

In this case, we have a time difference of 10 hours between the two samples.

To calculate the number of generations, we can use the formula:

Number of generations (n) = log(N₂ / N₁) / log(2)

Where N₂ is the final cell count (10,000 cells/ml) and N₁ is the initial cell count (1,000 cells/ml).

Plugging in the values, we get:

Number of generations (n) = log(10,000 / 1,000) / log(2) ≈ 3.32

Now, we can calculate the generation time:

Generation time (t) = Time elapsed (T) / Number of generations (n)

Generation time (t) = 10 hours / 3.32 ≈ 3.01 hours

Therefore, the generation time of the bacteria in this culture is approximately 3.01 hours.

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The structure of the plasma membrane make this type of transport necessary for fluids because while the heads of the phospholipid structure attract water, the tails are hydrophobic. The model depicts how the hydrophilic section folds around the fluid molecules to bring them into the cell so they do not need to pass through the hydrophobic tails.

The plasma membrane is a biological membrane that separates and protects the interior of all cells from the outside environment.

The plasma membrane also known as the cell membrane has the following function:

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Answer:

I believe the answer would be A.

Explanation:

Answer:

a

Explanation:

The statement that represents a valid hypothesis about organic farming is as follows: Carrots that are grown with organic fertilizer will contain more vitamin A than those grown with nonorganic fertilizer (option B).

Organic farming is approach to farming based on biological methods that avoid the use of synthetic crop or livestock production inputs.

Organic farming puts value on ecological harmony, resource efficiency, and non-intensive animal and crop husbandry practices.

According to this question, many grocery stores claim that organic produce has more health benefits than traditionally grown produce. This suggests that they believe that agricultural produce grown using organic fertilizer will be more nutritious than those grown using non-organic fertilizers.

This means that the valid hypothesis regarding this claim is option B because it can be tested via experimentation.

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Answer:i have no idea

Explanation:

i need help

The active leisure industry is a group of activities, events, and activities that combine fitness and outdoor activities. These activities are usually non-structured, non-competitive, and promote an active, healthy lifestyle.

Adult sports and activities include walking, fitness or gym, running or athletics, swimming, cycling, bushwalking, football or soccer, and yoga.

In today’s world, Physical Activity (PA) is no longer just a personal and individual choice; it is a social and political necessity. Its importance is recognized by public health authorities and governments around the world, which has led to an increase in PA activity (mainly due to the growing awareness of the negative health impacts of a lack of physical activity).

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Answer:

the senator

Explanation:

he makes the bills

Answer: C

Explanation: The atomic mass is 22.990 so it would be C

Answer:

GGC AUU, in transcription pair for RNA, Uracil is present instead of Thymine.

Answer:

Hi! Well a population is a group of organisms that are the same species and live in the same area  and they interact with each other! A community is where different populations of species live in the same area and interact with each other!

So the answer is population! Stay safe!! <3

Answer:

D

Explanation:

Kelp Crabs

1.The motivations and drivers behind Paleolithic artists creating sculptures are not explicitly documented, as there are no written records from that time.

2.The Egyptian canon of proportions refers to the artistic guidelines followed by ancient Egyptian artists to depict human figures in a consistent and standardized manner.

3.The term "Spear Bearer" typically refers to the sculpture known as the "Doryphoros" or "Spear Bearer" by the ancient Greek sculptor Polykleitos.

4.Polykleitos, an ancient Greek sculptor from the 5th century BCE, developed a canon of proportions known as the "Doryphoros Canon" or "Canon of Polykleitos."

1.However, it is believed that the artists were inspired by their surroundings, natural forms, and possibly spiritual or religious beliefs. Some theories suggest that the sculptures had ritualistic or symbolic purposes, representing fertility, hunting, or ancestral figures. Others propose that they were created for personal expression or as a means of communication within the community.

2.It involved specific ratios and proportions that governed the idealized representations of the human body in Egyptian art. The canon typically depicted figures with the head, torso, and legs in a frontal view, while the arms and feet were shown in a more stylized, composite view. The proportions emphasized symmetry, rigid postures, and hierarchical scaling, reflecting the social and religious values of the Egyptian civilization.

3. This sculpture is believed to have been created in the 5th century BCE and is known primarily through Roman copies. It represented a male athlete holding a spear in a contrapposto stance, with balanced and harmonious proportions. The primary sources available regarding the Spear Bearer would include writings from ancient historians, descriptions in art catalogs, and any other documents that discuss the sculpture.

4.This canon aimed to establish an idealized representation of the male figure. Polykleitos believed that harmony and beauty in sculpture could be achieved through mathematical ratios and proportions. His canon emphasized the idea of symmetria, or balance, in the human body. The proportions were based on the concept of the "perfect" or "ideal" male figure, with mathematical ratios determining the relationships between various body parts. The canon aimed to achieve a sense of naturalistic realism while still adhering to the idealized proportions defined by Polykleitos.

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Explanation:

The cell cycle is the replication and reproduction of cells, whether in eukaryotes or prokaryotes. It is important to organisms in different ways, but overall it allows them to survive. ... Plants require the cell cycle to grow and provide life for every other organism on earth.

Answer:

with no doubt I think the answer is diploid itdoes not access meiosis at all

Answer:

haploid cells

Explanation:

Answer:

The hormone ethylene is a gas and disperses easily.

Explanation:

Just took the test.

Answer:

striated

voluntary

used for movement

Explanation:

Skeletal muscle is:

→ striated - they are marked with long, thin parallel streaks

involuntary - they aren't done without will or conscious control.

→ voluntary - they are done out of one's own free will.

→ used for movement​ - they allow you to perform a wide range of movement