When we look at islands across the planet (think the islands of the galápagos and hawaii) we see that there are a remarkable number of island endemic species, species that are found nowhere else. what is a possible explanation for this observation?

Answer:

B. The air it breathes.

Explanation:

An abiotic factor is a factor that is non-living, while a biotic factor is living.

Abiotic example: the air it breathes

Biotic example: the mouse

the answer is C-cardiovascular

Final answer:

Enzymes involved in cellular respiration need to be transported D. to a mitochondrion to fulfill their role in ATP production.

Explanation:

An enzyme that is involved in cellular respiration will need to be transported to the mitochondrion to perform its function. This is because the mitochondria are known as the "powerhouses" of eukaryotic cells, responsible for producing adenosine triphosphate (ATP), the cell's main energy-carrying molecule. Cellular respiration occurs within the mitochondria where substrates are broken down to produce ATP. Proteins synthesized by ribosomes that are destined for the mitochondria are shuttled to these organelles post-translation. Ribosomes on the rough endoplasmic reticulum generally produce proteins that are meant for the cell membrane, but some proteins, particularly those involved in cellular respiration, are directed to the mitochondria where they execute their enzymatic functions.

Astronauts at the ISS are scientists primarily because they collect data to improve knowledge of space through research in various scientific fields in a unique microgravity environment (option B).

Astronauts who visit and stay at the International Space Station (ISS) are indeed scientists because they collect data to improve man's knowledge of space (option B). These astronauts carry out scientific research in a microgravity environment, which provides unique conditions for experiments in various fields such as biology, chemistry, physics, physiology, and medicine. The International Space Station serves as an advanced laboratory where astronauts can work on experiments that are not possible on Earth.

While traveling to space is a remarkable feat, the core of the astronaut's work on the ISS is rooted in scientific investigation. They may also be involved in repair missions or predicting weather on Earth using satellite pictures, but their primary role is to engage in research that advances our understanding of space and related sciences.

 47612

A current Procedural Terminology (CPT) code is a medical code that describes or emphasize precisely on the service a health care provider has performed for a patient. CPT describes medical, surgical, and diagnostic services and it also help to pass uniform information about medical services among health workers and patients.

The correct CPT code for a cholecystectomy using a right subcostal incision for exploration of common duct, with choledochoenterostomy is 47760. This code signifies the cholecystectomy is performed with an exploration of common duct and a choledochoenterostomy.

The CPT (Current Procedural Terminology) code that matches the description of a cholecystectomy via a right subcostal incision for exploration of the common duct with a choledochoenterostomy is 47760. This code signifies that the cholecystectomy is performed with an exploration of the common duct, and a choledochoenterostomy, which refers to the surgical creation of a connection between the common bile duct and a part of the digestive tract.

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Two pink flowers (rw) crossing can produce offspring with the genotypes rr (red), rw (pink), wr (pink), or ww (white). The probability for red and white offspring is 25% each, while for pink it's 50%.

When two pink flowers (rw) are crossed, the potential genotypes of the offspring could be rr (red), rw (pink), wr (pink), or ww (white). This can be visualized using a Punnett square, a diagram used in biology to predict the outcome of a genetic cross. For two pink flowers, the Punnett square would look like this:

Each square in the Punnett square represents a potential genotype, so the probability for each genotype (rr, rw, wr, ww) is 25% each because there are four squares. Therefore, the chances of the offspring flower being red is 25%, pink is 50% (rw and wr), and white is 25%.

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The correct answer is option (A) leaves > deer > wolf.

A food chain is a linear sequence of organisms through which the nutrients and energy flow as one organisms feeds on the other. They show organisms starting from the producers and end with consumers or sometimes with detrivores or decomposers. Each level of the food chain is called the trophic level. The producers which use solar energy and prepare their food occupy the first trophic level, followed by the primary, secondary, tertiary, quaternary consumers occupying the next trophic level.

In the food chain given above, leaves > deer > wolf, deers feed on the leaves which are maximum in number comparitively, wolf feeds on the deer which are comparitively more in number than the wolves. This is the correct sequence of food chain showing the tranfer of energy and decreasing number of organisms with subsequent increase in the trophic levels.

The type of fertilizer is the independent variable

Explanation: while the growth of the plant is dependent variable as its growth rate is a function of the type and quantity of fertilizer applied to it.

The correct answer is option D The population of foxes would probably decrease.

A food chain can be defined as a linear sequence of organisms through which the nutrients and energy flow as one organisms feeds on the other. Each level of the food chain is called the trophic level. They show organisms starting from the producers and end with consumers or sometimes with detrivores or decomposers. The producers which use solar energy and prepare their food occupy the first trophic level, followed by the primary, secondary, tertiary, quaternary consumers occupying the next trophic level.

In the terrestrial food chain given above, grass → rabbit → fox, the decrease in the any population will effect the other organism at a different trophic level of the food chain. A sudden decrease in the population of rabbits will decrease the population of the foxes at the next trophic level as it is a secondary consumer feeding on the primary consumer which is the rabbit. So, a sudden decrease in the rabbit population will starve the foxes and thus decrease their number in the island.

The correct answer is fat-soluble vitamins.

The fat-soluble vitamins are soluble in lipids and usually absorbed as fat globules (chylomicrons). They are absorbed via the lymphatic system of the small intestines and then transported into the blood circulation within the body.

Vitamin A (retinol) has an important role in maintaining healthy vision.

Vitamin D (cholecalciferol) is important for bone health and development and it is produced naturally in the human body when the skin is exposed to the sun.

 Vitamin E (tocopherol) is an antioxidant that can help the body destroy free radicals.

 Vitamin K (phylloquinone) has a role in forming the blood clots.

The percentage of calories will be added in chili cheese fries from doublez is 850 calories.

Unhealthy weight gain has been defined as due to wrong eating habits or unusual eating habit the weight of the body has been increased unnecessarily and this will lead to condition of the obesity and the condition has been known as the unhealthy weight gain.

The weight gain of the body which has been achieved by eating unhealthy food and not doing any physical activity has been termed as unhealthy weight gain. Therefore the benefit of a healthy lifestyle best applies to teens are they improved their self esteem.

Vegetarian person play a vital role in the maintainance of the food chain of an ecosystem. Vegetarian person always have low density-lipoprotein cholesterol level, lowers blood pressure and lower rates of hypertension and type 2 diabetes as compared to non-vegetarian person.

Therefore, The percentage of calories will be added in chili cheese fries from doublez is 850 calories.

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Answer:

A multinational corporation (MNC) is defined as a corporate organization that owns the production of various types of goods and services in a minimum of one country apart from its home country. Any corporation is considered as MNC if it is able to obtain at least 25% or more of its revenue from other companies.

These MNCs are mainly characterized by their bigger size and their global activities are directly controlled and managed by the parent companies.

Some of the works in which they are mostly associated with are given below-

(a) They mostly deal with the import and export of goods and other services

(b) They invest a huge sum of money in other foreign countries

(c) They also Buy and sell licenses that are required in order to carry out markets in foreign countries.

(d) They also get engaged in the manufacturing of contract.

Answer and Explanation: To be inherited through mendelian genetics, the traits has to "follow" the 3 principles Mendel described:

1) Principle of Uniformity: All the progeny born from a cross between parents that differ by only one trait will appear identical. Exceptions to penetrance (probability of a gene being expressed), expressity (the different degree a trait express in each individual) and sex-linkage inheritance;

2) Principle of Segregation: The alleles are separated during meiosis, producing equal quantity of gametes (male and female) that contain each allele. So, when one parent carry the dominant trait, the offspring will have the same genotype from the dominant with ratio 3:1;

3) Principle of Independent Assortment: Alleles at one locus separate into gametes independently of alleles at other loci, i.e., each trait is inherited independently from the other. In a dihybrid cross, the proportion of dominant offspring is also approximately 3:1;

In conclusion, traits that follow these "rules", are traits inherited through mendelian genetics.

Some non-communicable diseases (ncds), including Parkinson’s disease, begin with impaired motor control.

Answer: Option C

Explanation:

It is caused mostly due to genetic or environmental factors.  Parkinson’s disease is a neural disorder caused by deterioration of motor function in the brain.  Dopamine cells are lost in the brain cells.

This dopamine in the brain is responsible for the smooth movement. When it is lost due to various factors it causes progressive loss of muscle control. This causes shaking, shivering, trembling of head and limbs.  

The base of energy pyramid is wider than the top as there are usually many more producers than top predators in an ecosystem and also only a small portion of energy can be passed from a lower level to the level above it. The correct option is C.

An energy pyramid, also recognized as a trophic or ecological pyramid, is a schematic illustration of the energy contained within an ecosystem's trophic levels.

The producers are at the bottom and largest level of the pyramid, and they contain the most energy.

Because there is less energy available to support those organisms, the number of organisms at each level decreases relative to the level below.

Because it contains the least amount of energy, the top level of an energy pyramid contains the fewest organisms.

Energy pyramids are always upright because energy is lost at each trophic level; an ecosystem that lacks sufficient primary productivity cannot exist.

Thus, the correct option is C.

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If 50% of males in a population dies then the birth rate will decrease to 50%.

For example in a population there are 100 males and birth rate is also 100 per year.

Then after disease only 50 males will remain to reproduce and 50 babies will birth in a year. Hence birth rate also decreased by 50%.

If 50% of females in a population dies then the birth rate will decrease to 50%.

For example in a population there are 100 females and birth rate is also 100 per year.

Then after disease only 50 females will remain to reproduce and they will give birth to 50 babies in a year.

Hence birth rate also decreased by 50%.

Yes, the death of both male and female affected the birth rate of the roaches.

Both male and female death affected the birth rate of roaches because male and female are required for the increasing and maintaining birth rate. Male mate with female produces offspring so male as well as female are necessary for the birth of baby roaches.

If male population becomes half or 50% so due to less mating less female produce less baby roaches which results in decrease of birth rate while on the other hand, if the female population reduced to 50 % then less females are available for producing baby roaches which also affect the birth rate so we can conclude that the death of both male and female affect the birth rate of the roaches.

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Answer: They filter sediments and other material from runoff.

Explanation: