Why is blood type AB+ considered the universal receiver?
O It has no antibodies that can attack the antigens on the red blood cells of the other blood types.
It has no antigen on its red blood cells that can be attacked by the antibodies in the other blood types.
o It has no Rh antigen on its red blood cells that can be attacked by the antibodies in the other blood types.
O It has no A and B antigens on its red blood cells that can be attacked by the antibodies in the other blood types.

Answer:

There are four major classes of biological macromolecules (carbohydrates, lipids, proteins, and nucleic acids); each is an important cell component and performs a wide array of functions.

Explanation:

Answer:

Boreal forest is among the largest terrestrial biomes on earth in which minerals in the soil most rapidly depleted.

Answer:

Agavoideae

Explanation:

Bone remodeling is a process that continues throughout a person's life and consists of the removal of mature bone tissue from the skeleton and the formation of new bone tissue. Therefore the correct choice is false.

These processes not only control the reshaping or replacement of bone after injuries such as fractures, but also the micro-damage that occurs as a result of normal activity. The functional demands of the mechanical loading are also taken into consideration during remodeling.

During the first year of a person's life, almost every single bone in their skeleton is replaced. Remodeling occurs at a rate of approximately 10% per year in adults.

Many metabolic bone diseases, such as osteoporosis, are caused by an imbalance in the regulation of the two sub-processes that make up bone remodeling; these sub-processes are bone resorption and bone formation.

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The theory of the new corona virus's transfer from bats to people is covered in the explanation that follows.

The severe acute respiratory syndrome coronavirus 2 was produced as a result of cross-species transmission and is the culprit behind COVID19 (SARS-CoV-2). Coronaviruses are a large family of viruses that may infect a variety of hosts.

The host ACE2 protein and TMPRSS2 cleavage of the surface (S) protein are required for SARS-CoV-2 entrance. ACE2, a species-specific barrier, may prevent the bat-to-human coronavirus from spreading across species boundaries. Bats were confirmed as SARS-natural CoV's hosts by a molecular analysis, and they were also linked to the genesis of MERS-CoV.

A novel coronavirus called the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) evolved as the cause of COVID19 as a result of interspecies transmission.

Coroviruses are a large family of viruses that may infect a variety of hosts. For SARS-CoV-2 entrance, the surface (S) protein must interact with the host ACE2 protein and TMPRSS2 must be cleaved.

The species-specific barrier ACE2 may stop the bat-to-human coronavirus from spreading. A molecular analysis established bats as the SARS-natural CoV's hosts and linked them to the establishment of the MERS-CoV. Given the genetic resemblances between the SARS-CoV-2 strain and the bat RaTG13 CoV strain, it is believed that the most recent outbreak was caused by bats.

Compared to the human TMPRSS2 sequence, the pangolin ACE2 amino acid sequence has a greater evolutionary distance from bats and a lower evolutionary distance from humans. When comparing SARS-CoV and SARS-CoV-2 origins, the civet, the main intermediate host of SARS-CoV, has lesser ACE2 evolutionary divergence with humans than pangolin. The pangolin has evolved into an appropriate host for intermediate SARS-CoV-2 leap and entrance from bat to human as a result.

The study of links and evolutionary histories between or among groups of species is known as phylogenetics. These links are inferred using phylogenetic inference methods that focus on heritable traits that can be observed, including DNA sequences, protein amino acid sequences, or morphology.

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Answer:

A

Explanation:

Answer:

were - were

Explanation:

Answer:

uniformitarianism, Fossil groups, 48 million years ago.

Explanation:

Answer:

1. uniformitarianism

2. fossils

3. 48 million

Explanation:

Just did it on Penn Foster

Answer:

38 A

39 B

40 C

41 E

42 D

Explanation:

Ngl the first few answers seem sus but I know these are correct

Answer: Power plants

Explanation: They release the waste from it into the air

Answer:

Explanation: the primary function of the respiratory system is to take in oxygen and eliminate carbon dioxide

Answer:

S.T.U.D.E.N.T

There you go ♥

Answer:

what do you mean?

Explanation:

Answer:

Late ovulation

explanation

it can delay pregnancy, but that doesn’t mean it won’t happen. It’s entirely possible to conceive when you ovulate later in the cycle; the trick is to be as in tune with your body as possible. By knowing exactly what to look out for, you'll soon be able to tell when you are eventually ovulating.

"Several common reasons for a late period include stress, low body weight, obesity, different hormonal syndromes, birth control, and chronic diseases,"

Angiosperms can be divided into monocots and dicots based on their seeds

Angiosperms are plants that generate flowers and fruit in which to store their seeds. With over 300,000 species, they are the largest and most varied group within the kingdom Plantae. About 80% of all currently known living green plants are angiosperms.

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Answer: B. monocots and dicots this

Explanation:

Answer:

1 red, 2 pink, 1 white

Answer:

Well see I dont know this one but I can ask my parenents and hel you

Explanation:

Ima i in fourth grade i can we part to you later

Answer:

protons and nuetrons

Explanation:

Answer:

Is that something in the brain or skin?

Explanation:

Answer:

Sorry

Explanation:

According to the research, Turner syndrome is a condition that occurs when the individual inherits only one (female) X chromosome.

It is a genetic condition that is due to the lack of an X chromosome or part of it and can include characteristics such as delayed or incomplete development of puberty.

It can be diagnosed at birth or during childhood, puberty, or adulthood.

Therefore, we can conclude that according to the research, Turner syndrome is a condition that occurs when the individual inherits only one (female) X chromosome.

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Answer:

14

Explanation:

It's a diploid, voila. If it were to have down syndrome, though, it would have 14 and 1/2 due to the fact that your 24th chromosome set is both a set in your connective system and a sex cell.

The reason for the clear zone may be that there is Insufficient lipolytic activity.

The absence of clear zones when using LB media with 1% olive oil for screening lipolytic bacteria could be due to Insufficient lipolytic activity.

Enzymes called lipases, which are produced by lipolytic bacteria, break down fats and oils. It's possible that the bacteria utilized in the experiment won't create lipases or have poor lipolytic activity, which would prevent them from efficiently hydrolyzing the olive oil in the media. There wouldn't be any observable clearing or lipid hydrolysis zones as a result.

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The given statement " Algae indeed produce energy-rich carbon compounds through photosynthesis". is True because  Photosynthesis is a vital process that occurs in the chloroplasts of algae cells.

During photosynthesis, algae capture light energy using pigments like chlorophyll and convert it into chemical energy. They utilize this energy to break down water molecules, releasing oxygen as a byproduct, and incorporating carbon dioxide from the surrounding environment. Through a series of enzymatic reactions, algae synthesize glucose, a high-energy carbon compound.

Glucose serves as a primary source of energy for algae, enabling them to carry out essential metabolic processes and sustain their growth. Additionally, algae can convert excess glucose into other energy-rich carbon compounds, such as lipids and starches, which serve as energy storage molecules. These compounds can be used during periods of limited sunlight or nutrient availability.

Overall, algae's ability to generate energy-rich carbon compounds through photosynthesis makes them an important component of aquatic ecosystems and potential sources for renewable energy production and biofuel development.

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The polynomial that models the total number of white-sided and black-tailed jackrabbits can be found by adding the two polynomials for each species:

Total jackrabbits: \(6.7x² +7.8x+4.1 +0.3x² +0.4x+7.9 = 7x² +8.2x+12\)

Therefore, the polynomial that models the total number of white-sided and black-tailed jackrabbits is \(7x² +8.2x+12.\)

Polynomials are mathematical expressions consisting of variables and coefficients, which are combined using only the operations of addition, subtraction, and multiplication. A polynomial of degree n (written as P(x) = anx^n + an-1x^(n-1) + ... + a1x + a0) is a mathematical expression with the highest exponent of the variable x being n.

The coefficients, an, an-1, ..., a1, a0, can be any real numbers. In mathematical modeling, polynomials can be used to model and predict real-world phenomena, such as population growth, stock market trends, and more. They are widely used in mathematics and science because of their simplicity, versatility, and ability to model complex phenomena.

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Answer:

When energy flows out of a system, it must all flow into the surroundings.

When energy flows out of a system, ΔEsystem is negative.

When energy flows into the surroundings, ΔEsurroundings is positive.

Therefore,

─ ΔEsystem= ΔEsurroundings

Answer:

their tails help them swim to eachother

Answer:

The respiration, which takes place in the existence of oxygen is termed as aerobic respiration. In the process, glucose goes through the process of glycolysis to generate two molecules of pyruvate that further gets transformed into acetyl-CoA and enters the citric acid cycle. The energy generated from both the citric acid cycle and glycolysis is mediated by the energy carriers like FADH2, NADH2, etc to the ETC to produce ATP. The net production of ATPs while undergoing aerobic respiration is 36-38 ATPs.  

On the other hand, the respiration, which takes place in the non-existence of oxygen is termed as anaerobic respiration, also known as fermentation. The process takes place within the cells of yeasts, in the process also the formation of pyruvate takes place as the cell goes through the process of glycolysis. This pyruvate is further converted to acetaldehyde, which further gets converted to alcohol or ethanol. In the process, the net production of ATP is 2, and in animals, the same procedure is termed as lactic acid fermentation.  

Thus, glycolysis takes place both in aerobic and anaerobic respiration.  

The net gain of 36 or 38 ATPs takes place in aerobic respiration.  

The net gain of 2 ATPs takes place in anaerobic respiration.  

Lactic acid fermentation is a kind of anaerobic respiration.  

The alcohol fermentation is a kind of anaerobic respiration.  

The electron transport chain is used in the aerobic form of respiration.  

The citric acid cycle is also used in aerobic respiration.  

Answer:

The correct answer is - 15 m/min.

Explanation:

Given:

Distance = 30 meter

Time = 120 second or 2 minutes

speed = ?

We know:

The speed of any moving can be calculated by the distance it traveled per unit of time,

So,

speed = Distance/time

Solution:

Speed of coyote = 30/2 meter/min

= 15 meter/min or 0.9 km/hour

Thus, the correct answer is - 15 meter/min or 0.9 km/hour

We have that the dilution factor to get 30-300 colonies is mathematically given as

dilution factor=10^8

Question Parameters:

A density of about 109 or 1010 cfu/mL.

plate that culture to get 30-300 colonies on your plate.

Generally, Concentration of cells in the culture

C= 2x10^10 cfu/mL

Let's goal 200 colonies.

Let's  extent plated be 1 mL

\(C= \frac{(number of colonies \times dilution factor)}{volume plated }\)

2e10 = 200\times dilution

dilution factor= \(\frac{2x10^10}{200}\)

dilution factor=10^8

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Complete Question

A typical, well-aerated culture will have a density of about 10^9 or 10^10 cfu/mL after an overnight incubation. If you are working with a strain of bacteria that grows to 2x10^10 cfu/mL after overnight incubation, how should you dilute and plate that culture to get 30-300 colonies on your plate? What dilution should you use?

Answer:

Compost, Recycle, Plant a tree, Solar power, Wind power, Hydroelectric power, and Save water

photosynthesis removes carbon dioxide naturally — and trees are especially good at storing carbon removed from the atmosphere by photosynthesis.