natural selection occurs at the organizational level to

Answer:

Because it other dominates the other genes. It mutates but still carries the Domininant Recesive gene is intact to the organism.

Answer:

The correct answer is option B, that is, less genetic diversity in later generations.

Explanation:

A pandemic that spread across Europe between 1348 and 1350 was named as the Black Death. It has been predicted that of the total population of Europe at that time 30 to 60 percent died due to the pandemic. The geneticists are still trying to document the influence of Black Death on the population of Europe today.  

It has been found that in England, the genetic diversity is found much lower in comparison to what it was in the eleventh century, and is primarily due to so many people dying in the 1300s. However, the rest of Europe does not demonstrate a dropped amount of genetic variation, which maybe because of the enhanced patterns of migration in other places.  

Answer:

Small amounts of a mutagen often do not have an effect on health

Explanation:

X-ray is a form of electromagnetic radiation used as an imaging tool to view internal structures. X-ray radiation occurs when a charged particle hits a material at a high wavelength.

Exposure to X-ray radiation has been shown to cause serious health concerns as they are known to be mutation-inducing i.e. mutagenic, when exposed to in high quantities or doses. Therefore, in the case of Maria who was exposed to a small amount of X-ray radiation, the doctor would likely tell her that small amounts of a mutagen (X-ray) often do not have an effect on health.

Answer:

Explanation:

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Answer:

Hey there!

3) Well injection is usually done through the vein because they need the substance to go into the blood.

4) Some people believe that the heart is on the left side because its the left ventricle and atrium responsible and when people hear left they think the heart is on the left.

5) People living in high altitudes don't get as much oxygen so their bodies evolved into carrying ,more RBC so more oxygen is carried into their bodies.

Hope this helps :)

Answer:

1) Photosystems

2) Thylakoid membrane

Explanation:

Photosynthesis is an important phenomenon for the cells of autotrophic organisms like green plants. It is the process through which they obtain their energy source. Photosynthesis, which consists of two stages, occurs in the Chloroplast of the cell.

The light dependent stage occurs in the thylakoid lumen of the CHLOROPLAST while the light independent stage occurs in the stroma. The thylakoid is a membrane-bound sac usually organized in stacks called GRANA.

The Chlorophyll pigment, which captures the photon of light needed for the photosynthetic process, is contained in the thylakoid. Also, embedded in the thylakoid space are protein complexes called PHOTOSYSTEMS, which are involved in the capturing photons of light and transferring of electrons. The Photosystems 1&2 are the functional units of photosynthesis.

The high energy generated by the Photosystems are transferred from one electron carrier to another along the thylakoid membrane in order to generate ATP and NADPH. This process is called Electron transport chain.

Thylakoids are the membrane-bound structures present within chloroplasts of the plant cell. Thylakoids consist of photosystems and are surrounded by the thylakoid membrane.

The correct blanks for the given statement are:

Thylakoids contain clusters of chlorophyll and proteins known as photosystems. They absorb sunlight and generate high energy that passes along the thylakoid membrane.

Photosystems in the thylakoids are the structural and functional protein complexes, which play a crucial role in performing photosynthesis. These systems are present along the thylakoid membranes, and carry out the primary photochemistry of photosynthesis.

The thylakoid membrane is involved in the light-dependent reactions of photosynthesis. The membrane absorbs light energy and is then converted into chemical energy. The high-energy generated is passed along the thylakoid membrane.

Therefore, the correct answers are photosystems and thylakoid membrane.

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Answer:

the answer is nucleus

Explanation:

Organelles are the cellular structure that performs various functions. The organelle nucleus directs all the activities of the cell. Thus, option a is correct.

The nucleus is an organelle present inside the cell and has the most vital role in the functioning and hereditary. It controls majorly all activities in the cell including growth, inheritance, metabolism, etc.

It is enclosed in a nuclear membrane that separates it from the cytoplasm and is the region where the process of replication and transcription takes place. It is the control center that directs and regulates the cellular activity that is essential for the cell to survive.

Therefore, a nucleus is an organelle that regulates cellular activities.

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The plant was exposed to more intense light

The plant absorbed more carbon dioxide.

The production of glucose increase in plant cells when the intensity of light is increased and the amount of carbon dioxide absorbed is increased. These affect the rate of reaction.

Photosynthesis is the process of formation of glucose (sugar) in the green cells of plant. Photosynthesis takes place during the daytime as it requires sunlight to proceed the reaction. The reaction takes place in the chloroplast of plant cells.

Factors which affect the rate of photosynthesis are light intensity and carbon dioxide concentration. Light intensity is directly proportional to the rate of photosynthesis, as the intensity of light increases the rate of photosynthesis also increases.

Similarly, carbon dioxide is also proportional to the rate of photosynthesis as carbon dioxide is a reactant in this process. With the increase in the amount of reactants, the rate of a chemical reaction increases and hence more product is formed.

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Answer:

An mRNA template is used to create an amino acid chain.

Explanation:

Transcription is the process where new mRNA is created from DNA. Translation, however, is the process of creating proteins by using mRNA as a template. Proteins are made up of amino acids often in the form of an amino acid chain.

The process that is part of translation but not transcription is "mRNA template is used to create an amino acid chain"

PROTEIN SYNTHESIS:

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Explanation:

RNA polymerase reaches the end of a gene. Which describes the main purpose of RNA polymerase during transcription? ... RNA polymerase reaches the end of the gene. RNA polymerase produces mRNA from DNA

Answer:

it's D

Explanation:

Answer: its

3

Explanation:

Answer:

there must be large numbers of free amino acids present in the cytoplasm

Explanation:

In order for translation to occur, there must be a large number of free amino acids in the cytoplasm.

These free amino acids are usually carried by the transfer RNA which also carries the corresponding mRNA codon.

During translation, as the codons in the mRNA match their complements in the tRNA, the amino acid being carried by the tRNA is released and a peptide bond is formed between subsequent amino acids until the required polypeptide bond is formed.

Translation and transcription only occur simultaneously in prokaryotic cells where there is no barrier between the cell's genetic materials and the cytoplasm, unlike in eukaryotic cells where the genetic materials are housed in the membrane-bound nucleus.

Answer:

B. a concept backed by many well-supported hypotheses

Answer:

URBANIZATION

Explanation:

Urbanization is one way people have negatively affected land resources

which has lead to total exploit and in availability of those resources for us.

Resources are physical raw materials that originated from the earth which are useful for production and many things by humans and theses resources can be land, air,water and so on.

Resources are classified as either renewable and non renewable.

Renewable are resources that replenished itselves like water, wind.

Non renewable are resources that don't replenish itselves , example include fossil fuels.

Therefore, Urbanization is one way people have negatively affected land resources.

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Answer:Step order:

2. The surface (substrate) is preconditioned by environmental molecules.

4.Microbes bind and detach from the preconditioned surface.

1.Quorum detection and extracellular matrix establishment begins as microbes bind more stably.

 3. The mature biofilm and some microorganisms escape the planktonic state.

Explanation:

The biofilm is a highly complex structure where many microorganisms coexist, compete, reproduce, feed, within a micro-system with many ideal conditions for each microorganism that is housed in it.

The biofilm is resistant to non-selective antimicrobials, that is, to disinfectants such as sodium hypochlorite, chlorhexidine, among others.

Evidence was also presented that they are resistant to selective antimicrobials such as antibiotics, that is why they have great virulence factors or potential to trigger pathology.

The solution to destroy a biofilm is mechanical sweeping, with brushing as it happens on our teeth or even with the catheter cleaning brushes that are used (in addition to the sterilization methods).

This biofilm presents separate colonies in its interim with a fluid that it travels transmitting signals, food, toxins, resistant factors between these different types of microorganisms. This fluid and this communication between them is called quorum sensing and not all microorganisms tolerate it.

Many microorganisms compete with each other for the medium, an example is streptococcus mutating in the dental biofilm, which generates an acidic medium by metabolizing carbohydrates within the biofilm, thus generating that those bacteria that live in neutral or alkaline ph cannot reproduce and die.

The biofilm can be contained by bacteria, viruses, fungi and even parasites, but what they all have in common is that they have the ability to reproduce on an inert surface such as catheters, dental surfaces, silicone hoses.

The correct option is C. If it did not, the chromosome number would double in each  generation

The following information should be considered:

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Hi there! Hopefully this helps!

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The answer to your question is B.

"Calcium hydroxide stimulates the production of reparative dentin."

A. Nucleotides

Monosaccharides make up a carbohydrate.

Amino acids make up protein.

Glycerol and fatty acid tails make up lipids.

Answer:

Explanation:

A cross between a tiger and a lion will produce an hybrids. During fertilization it has been observed that both the father and the mother contributes equally to the genetic makeup of the offspring this therefore will make the liger have 50%gene from the tiger and 50% gene from the lion which is different genetic makeup from the parents.

Since the parents are of two different species the offspring will always be of a different species because its makeup is genetically different from the two parents it is a combination of two species forming a new species.

If the parental species are the same i.e two lion or tiger the offspring will be of the same species but a combination of the parental gene.

Answer:

Secondary succession occurs when the severity of disturbance is insufficient to remove all the existing vegetation and soil from a site. Many different kinds of disturbances, such as fire, flooding, windstorms, and human activities (e.g., logging of forests) can initiate secondary succession. Pioneers of secondary successions face quite different conditions from those that accompany primary succession. Secondary successions often start with resource-rich conditions associated with high light availability and reduced competition for nutrients and moisture. Disturbances may also be short-lived; for example, gaps created in forest canopies close as the crowns of surrounding trees expand and as seedlings and saplings in the understory grow up in response to increased light. Pioneers rely on recruitment from propagules present in the soil, or that disperse into the site after disturbance occurs. Pioneers are able to outcompete established vegetation that survived the disturbance by maintaining high juvenile growth rates. Some of the fastest growing trees are pioneers in tropical rain forests. Individuals of the balsa tree Ochroma pyramidale, for example, can grow from seedlings to adults with >30 cm trunk diameter in <10 years.

The difference between pioneer and nonpioneer species is difficult to delineate (Table 1). Attempts to define distinct life-history strategies (implying coordinated evolution of life-history traits) are confounded because key traits such as propagule size and juvenile growth rate can vary over several orders of magnitude within a community and show broad overlap among species with contrasting habitat requirements. Nonetheless, interactions among traits can be used to describe some life-history tradeoffs that largely constrain the habitat requirements of pioneers. For vascular plants, paramount among these is a tradeoff between growth in the sun and survival in the shade (Figure 3). The high growth rates of pioneers are maintained by allocating a large fraction of the plant’s resources to new leaf area production, and by investing in nutrient-rich leaf tissue that can attain high-maximum photosynthetic rates. A consequence of preferential allocation to leaf production is that few resources remain that can be used to defend the plant against herbivores and pathogens, or to recover from physical damage. This results in high mortality, particularly in the shade, where resources needed for tissue replacement are most limiting.

Table 1. Characteristics of pioneer tree species in tropical forests that distinguish them from nonpioneer species

Pioneer speciesNonpioneer species1. Juveniles recruit from seed following disturbance; seedlings are unable to survive beneath a forest canopySeedlings and saplings persist in the shade of a forest canopy2. Seeds germinate in response to cues provided by changes in light, temperature, or soil nitrate concentrations indicating disturbance to canopy vegetationSeeds germinate immediately after dispersal or seasonally during periods favorable for establishment3. Seeds generally small; frequently dispersed by windSeeds may be large; frequently dispersed by vertebrates4. Seeds often persist in the soil (weeks to decades after dispersal)Seeds lack dormancy or remain in the soil for less than a year5. High height growth rate and juvenile mortality rateLower height growth, crowns often show lateral spread in the shade6. High maximal photosynthetic rate, light compensation point, and foliar nutrient concentrationsLow maximal photosynthetic rate, light compensation point, and foliar nutrient concentrations7. Short-lived leaves with high leaf area per unit leaf massLeaves of juvenile plants may persist for several years with low leaf area per unit leaf mass8. Open canopies with sparse branchingClosed canopies9. Low wood densityMedium–high wood density10. Low investment in chemical anti-herbivore defenseHigh investment in chemical and structural defenses11. Often form defensive mutualisms with antsDefensive mutualisms uncommon12. Adult lifespan typically &lt;100 yearsAdult lifespan up to 500 years13. Wide geographic and ecological rangeOften restricted geographic range

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Answer:

and: option B) Ionic bond

Answer:

Digestive enzymes are the natural substances our body needs to help  break down and digest food

We have three main digestive enzymes :

Proteases: These enzymes break down protein into small peptides and amino acids.

Lipases: break down fat into three fatty acids plus a glycerol molecule.

Amylases: Are responsible for breaking  down carbs like starch into simple sugars.

Explanation:

Digestive enzymes are proteins that catalyze mainly hydrolysis reactions that make nutrients absorbable in the digestive tract. Pepsin is a gastric enzyme that turns proteins into albumoses and peptones which are shorter peptide chains that are then hydrolyzed to even shorter chains until amino acids by intestinal enzymes. Pancreatic amylase is an enzyme that turns starch(a polysaccharide) into maltose(a disaccharide). Lipase is present in the gastric juice, the pancreatic juice, and the intestinal juice. This enzyme catalyzes the hydrolysis of lipids(mainly triglycerides) into fatty acids and glycerol. When incomplete hydrolysis occurs triglycerides can become monoglycerides.

Answer:

The processes that likely contributed to the patterns of animal diversity we see is LOCAL AND GLOBAL EXTINCTION EVENTS.

Extinction event is when a large number of multicellular organisms of same species die within a short period of time reducing the number of such organisms in circulation in the ecosystems.

Extinction event can be (all over the world) or local (within a speculated geographic location).

Causes of extinction includes; population growth,habitat loss,over consumption, population and introduction of new species.

Explanation:

This hot spot partly melts the region just below the overriding Pacific Plate, producing small, isolated blobs of magma. Less dense than the surrounding solid rock, the magma rises buoyantly through structurally weak zones and ultimately erupts as lava onto the ocean floor to form volcanoes.

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Answer:

c

Explanation:

I took the test

Answer:

D. circulatory system

Explanation:

Circulatory system is the method of transport of plants and animals. It gives the plants nutrients and carbon dioxide in every cell and release waste products from their system.

Explanation:

your is your answer can u follow me

Answer:

Old/damaged

Explanation:

There is a variety of reasons why something can be turned into something else.

B) Information Processing Theory

The information processing theory states that dreaming is a process to deal with information and observations collected from daily life and memories. It creates images, impressions, and narratives inside a person’s head.

Answer:

1,897,087=1,900,207.2=3,120 (the equasion you gave when distributed)

Answer to the question(Money made): ($)3,372

Explanation:

solved it out by multiplying

Answer:

Answer to the question(Money made): ($)3,372

Explanation: