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Answer:The hypothesis that eukaryotic cells evolved from a symbiotic association of prokaryotes—endosymbiosis—is particularly well supported by studies of mitochondria and chloroplasts, which are thought to have evolved from bacteria living in large cells.

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The protein produced from the OCA2 gene, known as the P protein, is involved in the maturation of melanosomes, which are cellular structures that produce and store melanin. The P protein therefore plays a crucial role in the amount and quality of melanin that is present in the iris.

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Yes, you are right for both.

Answer:

B

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The statement which is supported by the information in the bar graph is that: B. trade between nations steadily increased between 1988 and 2013.

A bar graph can be defined as a type of chart that is used to graphically represent data (information), especially by using rectangular bars or vertical columns.

Based on this bar graph titled Global Trade (Percent of GDP), we can infer and logically conclude that trade between nations increased steadily between 1988 and 2013, which was from over 40 percent (40%) to almost 60 percent (60%).

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Answer:

1. Homeostasis.

2. Osmoregulation.

3. Thermoregulation.

4. Endotherm.

5. Ectotherm.

6. Excretion.

Explanation:

1. The level of glucose in a person's blood stays relatively constant even after he or she eats a sweet dessert. This is an example of homeostasis, which is the maintenance of relatively constant internal conditions despite fluctuations in the external environment. Homeostasis can be defined as a process through which a living organism maintains a steady or stable physical, internal and chemical environment that is ideal to enhance life and proper functionality.

2. The maintenance of internal water and solute concentrations within a narrow range is called: osmoregulation. Normovolemic describes the situation in which a living organism maintains a normal volume or amount of blood in the body.

3. The maintenance of internal temperature within a narrow range is called: thermoregulation. Temperature can be defined as a measure of the degree of coldness or hotness of a physical object. It is measured with a thermometer and its units are Celsius (°C), Kelvin (K) and Fahrenheit (°F).

4. An endotherm, such as a pigeon, is an organism that gains body heat primarily from its own metabolism. It is also referred to as homotherm and it involves maintaining a constant body temperature.

5. An ectotherm, such as a salamander, is an organism that gains body heat primarily by absorbing it from the environment. Thus, an ectotherm have limited abilities with respect to regulating its body temperature.

6. The disposal of nitrogen-containing wastes, as through urination, is called: excretion. Glomerular capsule is also referred to as Bowman's capsule and it can be defined as a cuplike sac (structure) with a double wall, which makes up the tubular part of a nephron within the kidney of mammals. It is saddled with the responsibility of first filtering blood (ultrafiltration) under pressure to generate urine in the mammalian kidney.

Answer:

mutualism

Explanation:

Hello. You did not present the cladogram to which the question refers, which makes it impossible for it to be answered. However, I will try to help you in the best possible way.

A cladogram is the representation of the evolutionary relationships between living beings, showing ancestry and the genetic relationship between them. The cladogram is represented by lines and dots. The lines represent the evolutionary time and the dot between them represents the ancestor of a new species. In this case, to answer your first question, we can consider that the most recent ancestor of all species is the ancestor of the central line. However, the most recent ancestor, shared only by gymnosperms and angiosperms, is the one that is in the dot closest to the lines that represent gymnosperms and angiosperms.

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a. 1

b. 4

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EE is dominant ee is recessive, the probability of the child having ee is 25 percent

Answer: EXAMPLE:Black bears can carry the mutated gene that produces the white bears.

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kinetic and solar energy

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hope it helps

Answer: This is it!

Hope this helps

Answer:

Ureter

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"A primary source was written by someone who actually experienced the event."

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"A primary source was written by someone who actually experienced the event."

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Keystone species are animals that help manage other animal species by controlling population numbers and biodiversity within an ecosystem. The impacts of keystone species are usually greater than their numbers. 

owls can be a great benefit to places where rodent populations are high. Dense urban areas often suffer from an abundance of rats and mice spreading disease, and rural agricultural communities have their crops consumed and soil eroded from burrowing voles and field mice. Without owls, and other top predators, rodent populations could explode and exacerbate the effects they produce.

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the owl is a keystone species, as many other birds. and it gives them the nutrients they need when they eat the bird and it mangeges the population of the other species:)

Answer:

1g

2e

3j

4a

5c

6b

7i

8d

9f

10h

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D

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the picture has ripples and is dry and cracked, hence the envirmoment having to be dry and windy.

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It was one dry and windy.

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of your body's natural defences and presence or absence of certain antigens

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mark me as brainliest if it helped you

Answer:

Essay about the rise of global temperatures over the past century.

Explanation:

The rise of global temperatures over the past century is the major issue which occurs due to human activities. The use of fossil fuels in vehicles releases huge amount of carbondioxide gas in the air while burning. Carbondioxide gas is a green house gas which blocks the reflected solar radiation to go away in the space. These solar radiation remains in the surface which increases the surface temperature of the earth. This rising in the surface temperature is responsible for the melting of glaciers that leads to the rise of sea level which is a threat for coastal regions. This melting of glaciers also causes floods in the regions so that's why the it is a major issue.

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Carbon is in almost everything. Carbon can come into the food chain from what animals eat and drink. Carbon can also come into plants from the soil absorbing dead animals.

Answer: Red hair

Explanation: Phenotypes are the physical characteristics or traits of an organism.

A predator would likely be more fit if he could blend in with his surroundings, made minimal noise, had good hearing, and could move quickly.

What will make a predator fit in every environment?

Therefore, natural selection is the phenomenon for survival of the fittest.

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Answer:

That orange and white cat next door could be an American Bobtail, a Persian, a Munchkin or even a Maine Coon! Their orange color comes from a predominance of a pigment called pheomelanin. This is the same pigment that makes some humans “redheads”.

Answer:

true

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Just because he told she's being selfish ext.. lol it's not normal

Answer:

Major contamination sources are water, air, dust, equipment, sewage, insects, rodents

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Contamination of raw materials can also occur from the soil, sewage, live animals, external surface, and the internal organs of meat animals.

Answer:

A maybe

Explanation:

Answer:

suspended particle pollution

Explanation:

Volcanic eruptions and landslides cause excess soil and rocks fall into waterways.

The type of pollution may result from a volcanic eruption or landslide is suspended particle pollution, i.e., option C.

Particulate matter in suspended form is microscopic solid or liquid matter suspended in the Earth's atmosphere.

It is also known as particulate matter or particulates. Particulate matter is the accumulation of all solid and liquid particles suspended in air, many of which are dangerous.

This is the type of pollution may result from a volcanic eruption or landslide is suspended particle pollution.

Thus, the correct option is C.

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Uranus and Jupiter both have rings, both have moons, but they are mostly gas planets, and both have some methane. I think id.k if that helped

Uranus is similar to Jupiter in that it has methane in its atmosphere. Therefore, the correct option is D.

Both Jupiter and Uranus are planets in our solar system. Jupiter, the largest planet in our solar system, is located five planets from the Sun. Uranus, the third largest planet in our solar system, is located at a distance of seven planets from the Sun.

Both planets are gas giants, with atmospheres composed mostly of hydrogen and helium. Their upper atmospheres also include methane gas, which gives them a blue-green colour. However, there are many differences between Uranus and Jupiter. Although they are much less noticeable than Saturn's rings, Uranus has a system of rings and at least 27 moons. Compared to Jupiter, Uranus is smaller and has less mass.

Therefore, the correct option is D.

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Answer: A chromosome is a long DNA molecule with part or all of the genetic material of an organism. The primary distinction between these two types of organisms is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not.

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