I am a microorganism that helps to increase soil fertility naturally.

Ribosomes
Rhizobium
Leguminous plants

Answer:

only eucaryotic have a nucleus and membrane-bound structures called organelles.

Explanation:

The main skeletal features used to construct a cladogram include the presence or absence of specific bones/structures, bone shape/structure, dental characteristics, skeletal adaptations, and skull morphology.

Cladograms are phylogenetic trees that illustrate the evolutionary relationships between different organisms. When constructing a cladogram, various skeletal features can be used as characters to determine the branching patterns and common ancestry among organisms. Here are some main skeletal features used in cladistic analysis:

Presence or absence of specific bones or structures: The presence or absence of certain skeletal elements, such as wings or limbs, can provide insights into evolutionary relationships.

Bone shape and structure: Comparing the shapes, sizes, and structures of bones can help identify shared characteristics and infer common ancestry.

Dental characteristics: The structure and arrangement of teeth, including the type and number of teeth, can provide information about evolutionary relationships and dietary adaptations.

Skeletal adaptations: Features like the presence of a notochord, presence of a bony skeleton, or modifications for specialized locomotion (e.g., wings, fins, limbs) can be used to infer evolutionary relationships.

Skull morphology: Examination of the skull, including the shape of the cranium, presence and structure of specific cranial bones, and jaw structure, can help determine evolutionary relationships and functional adaptations.

By analyzing these skeletal features and comparing them across different organisms, cladistic analysis aims to identify shared derived characteristics (synapomorphies) that indicate common ancestry and to construct a branching pattern that represents the evolutionary relationships between the organisms being studied.

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What are the main skeletal features that can be used to construct a cladogram?

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The capillaries are adapted to their functions because their walls are just a cell thick making it possible for exchange to occur.

A capillary is defined as the type of blood vessels that is found all over the body which is the smallest type of blood that allows the transport of blood, nutrients and oxygen to cells in organs and body systems.

The physiological structure of the capillaries helps in the adaptation of their functions because they are just a cell thick which is not so for veins and arteries of the vascular system.

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Answer:

5730 years

Explanation:

In a chemical reaction, including radioactive decay, the half-life of a species is the time taken for the substance to decrease to exactly one-half its initial value.

For a first-order reaction, the half-life of the reactant is

                                                  \(t_{\frac{1}{2}} \ = \ \displaystyle\frac{\ln 2}{\lambda} \ \ \ \ \ \ (1)\),

where λ is the reaction's rate constant modeled by the differential equation describing the kinetics of a first-order reaction

                                               \(N \ = \ N_{0}e^{-\lambda t} \ \ \ \ \ (2)\),

where N is the remaining amount of substance after time t and \(N_{0}\) is the initial amount of substance before the chemical reaction proceeds.

Since the value of λ is constant, rearrange equation (1) with λ as the subject,

                                                       \(\lambda \ = \ \displaystyle\frac{\ln 2}{t_{\frac{1}{2}}}\).

Given that only 12.5% of carbon-14 remained after 17190 years assuming that initially there was 100% of carbon -14, substitute in the values into equation (2) and solve for λ (make λ the subject of the equation),

                               \(\-\hspace{0.56cm}12.5 \ = \ 100e^{-\lambda \times 17190} \\ \\ \-\hspace{0.5cm} \displaystyle\frac{12.5}{100} \ = \ e^{-17190\lambda} \\ \\ \displaystyle\frac{\ln\displaystyle(\frac{1}{8})}{-17190} \ = \ \lambda \\ \\ \-\hspace{1.05cm} \lambda \ = \ \displaystyle\frac{3\ln2}{17910} \ \ \ \ \ \ \ \ \ \ (\ln \displaystyle\frac{1}{x} \ = \ -\ln x\ ; \ \ln x^{n} \ = \ n\ln x )\)

Equate both λ,

                                            \(\displaystyle\frac{\ln 2}{t_{\frac{1}{2}}} \ = \ \displaystyle\frac{3\ln2}{17190} \\ \\ \-\hspace{0.26cm} t_{\frac{1}{2}} \ = \ \ln 2 \ \times \ \displaystyle\frac{17190}{3\ln2} \\ \\ \-\hspace{0.26cm} t_{\frac{1}{2}} \ = \ \displaystyle\frac{17190}{3} \\ \\ \-\hspace{0.26cm} t_{\frac{1}{2}} \ = \ 5730\)

*Note that the above calculations demonstrated that carbon-14 went through 3 half-lives to yield a remaining 12.5% of its original amount, since

                                 \(100\% \ \overset{t_{\frac{1}{2}}}\longrightarrow \ 50\% \ \overset{t_{\frac{1}{2}}}\longrightarrow \ 25\% \overset{t_{\frac{1}{2}}}\longrightarrow \ 12.5\%\).

Therefore, if n is the time taken for carbon-14 to half its initial amount trice to remain 12.5% of its initial amount. Then, the half-life of carbon-14 is \(\displaystyle\frac{n}{3}\).

The "exfoliation" or "shedding" of milk teeth is the name of the procedure.

The primary and permanent tooth sets make up the human dentition. Maxillary (upper) and Mandibular (lower) are the two opposing arches in which teeth are arranged. These can be split into their left and right halves along the midline (mid-sagittal plane).

Four Different Teeth Types and Their Purposes

The majority of individuals have 32 permanent adult teeth, which can be classified into four groups:

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Answer:

were - were

Explanation:

A protective thrombus plus callus are formed around a fracture shortly after it occurs as a result of the body's protective measures to treat the wound. On both sides of a fracture line, fresh bone cell "threads" start to form.

The cells that compose bone tissue are known as bone cells. A highly specialized tissue called bone serves three major purposes: to protect internal organs, to provide a solid framework for muscular activity, and also to store minerals like calcium and phosphorus.

The growing parts of bone, such as the periosteum and endosteum, include osteoblasts, the bone cells in charge of creating new bone. Osteoblasts, that don't divide, produce and secrete calcium salts and the collagen matrix.

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Answer:

A great example of homologous structures are the wings of a bat and the arms of a human. Bats and humans are both mammals, so they share a common ancestry. Both a bat's wing and a human's arm share a similar internal bone structure, even though they look very different externally.

Answer:

Bats and humans are both mammals, so they share a common ancestry.

Both a bat’s wing and a human’s arm share a similar internal bone structure, even though they look very different externally. They arean exampleof homologous structeres. Bat wings and bird wings are Anagolous beacuse they look and work similarly but are NOT related.

Explanation:

Homologous structures are structures that may look or function differently from related organisms.

Analogous structures are structures that look and function similarly from unrelated organisms.

Answer:

yeah its c most probable answer

Explanation:

Answer: buuu

Explanation:

Explanation:

what's the question though? lol

Answer:

a.

Explanation:

pathogens may enter the body and cause illness.

Immune system is the one that helps to keep away the invading organisms in the body causing disease. A person who has a weakened immune system will not be able to overcome against infection because pathogens may enter the body and cause illness, i.e., option A.

Pathogens are the organisms or specifically disease-causing organisms that enter the body and alter the functioning of the immune system.

These pathogens can be bacteria, viruses, etc. that can enter through food, water, air, etc.

A weakened immune system can not be able to fight with these invading pathogens and hence leads to diseases.

Thus, the correct answer is A.

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Growth of bacterial cultures is defined as an increase in the number of bacteria in a population rather than in the size of individual cells.

The growth of a bacterial population occurs in a geometric or exponential manner: with each division cycle (generation), one cell gives rise to 2 cells, then 4 cells, then 8 cells, then 16, then 32, and so forth.

Numerous environmental factors as well as the characteristics of the individual bacterial species govern the generation time, which differs among bacteria.

For instance, the generation time for the fastest-growing bacterium, Clostridium perfringens, is approximately 10 minutes; for the fastest-doubling bacterium, Escherichia coli, the generation time is 20 minutes; and for the slowest-growing bacterium, Mycobacterium tuberculosis, the generation time is between 12 and 16 hours.

Therefore, Growth of bacterial cultures is defined as an increase in the number of bacteria in a population rather than in the size of individual cells.

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Please find the correct answers to fill in the given blanks below:

11. Scientific notation for:

a. 10240 = 1.02 x \(10^{4}\)

b. 4.98×\(10^{2}\) = 4.98×\(10^{2}\) ; it remains the same because it is accurate according to the rules of writing scientific notation.

12. The temperature scale that is typically not used for scientific measurements is option c. Centigrade.

13. Between freezing and boiling on the Celsius scale, there are (100 - 0) = 100 degrees.

14. The given statement about the developer of the Celsius scale is True. It was developed by Anders Celsius.

15. True, at 0 K, there is absolutely no molecular motion. This is known as absolute zero.

16. Kinetic energy

An object's kinetic energy is the power it has as a result of motion. It is explained as the amount of effort required to move a mass-based body from rest to the indicated velocity. The body keeps its kinetic energy, which it acquired during acceleration unless its speed changes.

17. The average kinetic energy of the particles in a substance is measured by its temperature.

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Answer:

When an ozone molecule absorbs UV-B, it comes apart into an oxygen molecule (O2) and a separate oxygen atom (O). Later, the two components can reform the ozone molecule (O3). By absorbing UV-B in the stratosphere, the ozone layer prevents harmful levels of this radiation from reaching Earth's surface.

Explanation:

Answer:

The last answer. By absorbing some of the UV light that harms living things.

Explanation:

As the harmful UV light heads for earth, the Ozone Layer absorbs a great amount of the harmful UV radiation that comes from the sun, and If it weren't for the Ozone Layer, we would probably all be practically blind from the radiation hitting our eyes.

-Hope this helped & Happy Holidays!

Answer:

it is C

the answer was once covered in water.

Explanation:

The answer is C. The first option is highly unlikely, the second option is impossible, and C is a much more likely answer than D.

Answer:

The area was once covered in water, (C)

Explanation:

Have a nice day !

Blue-green algae are photosynthetic prokaryotes, while fungi are eukaryotes that obtain nutrition through absorption.

Blue-green algae and fungi are both organisms, but they belong to different domains and have distinct characteristics. Blue-green algae, also known as cyanobacteria, are classified under the domain Bacteria, while fungi belong to the domain Eukarya.

Blue-green algae are prokaryotic organisms, lacking a true nucleus and membrane-bound organelles. They obtain energy through photosynthesis and are capable of converting sunlight into chemical energy. They typically inhabit aquatic environments, such as lakes, ponds, and oceans, and some species can fix atmospheric nitrogen.

On the other hand, fungi are eukaryotic organisms with a distinct nucleus and membrane-bound organelles. They obtain nutrition by absorbing organic matter from their surroundings. Fungi play crucial roles in decomposition and nutrient cycling in ecosystems. They can be found in various habitats, including soil, plants, and even as symbiotic partners with other organisms, such as in mycorrhizal associations.

In summary, the primary differences between blue-green algae and fungi lie in their cellular structure, mode of nutrition, and classification. While blue-green algae are photosynthetic prokaryotes, fungi are eukaryotes that obtain nutrition through absorption. Understanding these distinctions helps in appreciating the diversity and ecological significance of these two groups of organisms.

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Explanation:

A) A yeast cell with a genetic mutation grows into a pink colony on a petri dish, while a cell without the mutation grows into a white colony

That would be an ecosystem.

(hope this helps ^^)

Answer: 15

Explanation: Mitosis creates two identical daughter cells that each contain the same number of chromosomes as their parent cell. In contrast, meiosis gives rise to four unique daughter cells, each of which has half the number of chromosomes as the parent cell.

Answer:

60

Explanation:

Answer:

Explanation:

With much lower gravity and much less air resistance, the golf ball will stay airborne longer and travel farther.

Answer:

good question!

Explanation:

A potential realistic mutation that could greatly benefit the human race is an increased resistance to infectious diseases.

One potential realistic mutation that could greatly benefit the human race is an increased resistance to infectious diseases. Such a mutation could occur through various mechanisms, including natural selection, genetic engineering, or epigenetic modifications.

This mutation would be beneficial because it would improve the health and well-being of individuals, reduce healthcare costs, and potentially prevent pandemics and global health crises. For example, a mutation that enhances the activity of immune cells or increases the expression of antimicrobial peptides could help individuals fight off infections more effectively and reduce the likelihood of spreading infectious diseases to others.

However, it is important to note that there could be potential negative consequences associated with this mutation. For instance, increased resistance to infectious diseases could lead to a reduction in the diversity of the human microbiome, which could have implications for overall health and immune function.

Additionally, it is possible that infectious agents could evolve in response to this mutation, potentially leading to the emergence of new and more virulent strains of pathogens. Therefore, it is important to consider the potential risks and benefits of any mutation carefully and to approach genetic engineering with caution.

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Answer:2 camouflage

Explanation:

it’s right

Answer:

cappilaries

Explanation:

Answer:

Cappilaries

Explanation:

hope it helps :) (i already know it)

Answer:

Two heterozygous parents have a 50% chance of contributing one of their alleles to each offspring.

Explanation:

Individuals who are heterozygous for a specific trait have two different alleles in the gene that determines that trait. This characteristic makes their chances of contributing each of their alleles to the offspring 50%.

The alleles of a gene are distributed in the gametes by the process of meiosis, which results in daughter cells with half the genetic charge, so each gamete can only have one copy of the allelic pair of a gene.  

On the other hand, if an individual has two equal alleles for a characteristic in a gene, he has a 100% chance of passing that allele on to his descendants.

Answer:

option d is the correct answer