What must be true of any organ described as vestigial? (A) It must be analogous to some feature in an ancestor. (B) It must be homologous to some feature in an ancestor. (C) It must be both homologous and analogous to some feature in an ancestor. (D) It need be neither homologous nor analogous to some feature in an ancestor.

Answer:

C

Explanation:

The amount of milk cow produces

Answer:

D

Explanation:

I took the test

Breeding between different species, although possible, is often complicated as it results in infertile or non-viable offspring. This usually occurs due to the difference in the karyotype.

The karyotype is the set of chromosomes that an organism possesses, for example, the human has 23 pairs of chromosomes (46 chromosomes).

For reproduction to be successful and give rise to healthy organisms, the parents must be of the same species (have the same number of chromosomes and these chromosomes must be homologous, i.e. have similar genes).

Therefore, unlike organisms of different species, the reproduction of 2 organisms of the same species can result in fertile offspring capable of reproduction.

Answer:

Codominance

Explanation:

Answer:  Codominance.

Explanation: In this condition, two forms of a trait or alleles are both present in the phenotype.

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It can be concluded that the upregulation of miRNA-210 may reduce the oxidative stress-associated cardiomyocyte apoptosis and could be a possible therapeutic target for treating heart diseases.

MicroRNAs are an important gene regulatory factor that helps in maintaining the cell's homeostasis by regulating different cell processes.

There are different types of microRNAs, among which microRNA-210 plays a crucial role in regulating oxidative stress-associated cardiomyocyte apoptosis by regulating BNIP3.

According to the article "Diao H, Liu B, Shi Y, Song C, Guo Z, Liu N, et al. MicroRNA-210 alleviates oxidative stress-associated cardiomyocyte apoptosis by regulating BNIP3.

Biosci Biotechnol Biochem. 2017;81(9):1712–20", microRNA-210 plays a crucial role in the regulation of oxidative stress-associated cardiomyocyte apoptosis by regulating BNIP3, which has been found to be a key protein in the progression of cardiac cell death.

It can be concluded that the upregulation of miRNA-210 may reduce the oxidative stress-associated cardiomyocyte apoptosis and could be a possible therapeutic target for treating heart diseases.

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Answer:

glucose

Explanation:

photosynthesis involves three elements: carbon, hydrogen and oxygen. You have seen that the products of photosynthesis are oxygen and glucose.

by burning fossil fuels

Very large nuclei can undergo fusion and become more stable. The given statement is FALSE.

Very large nuclei cannot undergo fusion to become more stable. Fusion is the process in which small nuclei combine to form a larger nucleus, releasing energy. This process is common in stars and is responsible for their energy output.

On the other hand, very large nuclei are more likely to undergo fission, a process in which a large nucleus splits into smaller nuclei, releasing energy. This happens because large nuclei have more protons, which leads to a greater electrostatic repulsion, making them less stable.
Very large nuclei do not undergo fusion to become more stable; instead, they undergo fission.

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The organism that would most likely survive the change in their environment is Pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction. The correct option is A.

Genetic diversity enables an organism to evolve in a way that permits it to adapt to the current or changing environment. Since a Pantala flavescens reproduces sexually, it is the only organism in the group that has the capacity to genetically evolve and adapt to its environment.

All of the remaining creatures reproduce asexually, which results in a lack of internal variation and makes it difficult for them to adapt to changing environmental conditions.

Therefore, the correct option is A, Pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction.

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The question is incomplete. Your most probably complete question is given below:

The pond slowly becomes more acidic due to the release of chemicals from a nearby factory. Which of the organisms would most likely

survive the change to their environment?

A.

Pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction

B.Hydra oligactis, because these organisms would have a low level of genetic variation due to sexual reproduction

c. Naegleria fowleri, because these organisms would have a high level of genetic variation due to asexual reproduction

D.Spirodela polyrhiza, because these organisms would have a low level of genetic variation due to asexual reproduction

Answer:

Heterozygous

Explanation:

The polymerase in the parent is Dominent and can mask the recessive allele

Answer:

Cytosine

Explanation:

Answer:

Two atoms slam together to form a heavier atom.

Explanation:

Fusion occurs when two atoms slam together to form a heavier atom, like when two hydrogen atoms fuse to form one helium atom. This is the same process that powers the sun and creates huge amounts of energy—several times greater than fission. It also doesn’t produce highly radioactive fission products.

Answer:

a option

the cell's ability to make proteins will decrease

Answer:

It takes longer for your body to break down complex carbohydrates because they have longer chains of sugar molecules. The longer the chains of sugar molecules the longer it takes to break down.

Explanation:

Complex carbohydrates have more chains of sugar molecules. while simple carbohydrates have fewer chains of sugar molecules. Therefore, it is difficult to break down the sugar molecules.

Carbohydrate molecules are energy-giving molecules. They provide energy in the form of ATP. There are different carbohydrate molecules such as Glucose, sucrose, and fructose.

There are two types of carbohydrates such as simple carbohydrates and complex carbohydrates. Simple carbohydrates have less number of sugar chains. Complex carbohydrate has more sugar chains.

Therefore, Complex carbohydrates have more chains of sugar molecules. while simple carbohydrates have fewer chains of sugar molecules. Therefore, it is difficult to break down the sugar molecules.

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Answer:

the correct compound is 10O2, the incorrect one is 2C4H10

Ongoing stressful life situation, such as a failed relationship or money problems. Bad treatment, such as being in an abusive relationship, from a partner, parent, or caregiver.

When someone lacks confidence in both their abilities and themselves, they have low self-esteem. They frequently feel inadequate, unwanted, or incompetent. Individuals with low self-esteem frequently worry about making errors or disappointing other people.

Age, sexual orientation, gender, and religion are just a few of the variables that might have an impact on one's self-concept. Moreover, a mix of self-esteem and self-image make up the self-concept.

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Answer:

A group of ringed seals

Explanation:

A population is a group of several of the same species of animal.

Answer:Some animals in Russia’s ecosystem is Arctic Ocean dwellers like polar bears, seals, whales, and walruses.

Explanation:

Genotypic ratio: 1:1 (Aa: aa): half affected and half carriers. phenotypic ratio: 1:1 (carrier: affected) - Carriers and affected individuals make up equal numbers.

We ought to take into consideration the inheritance pattern of the condition as well as the genotypes of the guardians in arrange to expect the genotypic and phenotypic ratios of the sibling.

The male with the condition would have the genotype "aa," and the female with the condition would have the genotype "Aa," in the event that the condition could be a latent hereditary clutter.

We can cross the male genotype (aa) with the female genotype (Aa) using a Punnett square:

| A | a | ------------ A | aa | aa | ------------

From the Punnett square, we can observe the following:

chromosomal ratio:

The genotype "Aa" (carriers) is expected to be present in two out of four offspring, or fifty percent.

The genotype "aa" (affected by the condition) is expected to be present in two out of four offspring (50 percent).

phenotypic Ratio :

It is anticipated that two out of four offspring, or 50%, will be carriers (phenotypically unaffected).

2 out of 4 (half) posterity are supposed to be impacted by the condition.

As a result, the anticipated genotypic ratio is one-to-one (Aa: aa), and the anticipated ratio of phenotypes is also 1:1 (carrier: affected).

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Answer:

a.heat

Explanation:

Bc when you put your finger in hot water uu fill the heat of the hot water am i right or am i wrong?......

letter A heat or B coldness

When considering plate tectonics and the rate at which tectonic plates move, we can say that daily, the plates will move fractions of a millimeter, which can result in up to a few centimeters yearly, which is why we don't feel this movement when there isn't an earthquake.

Plate tectonics refers to the movements of large-scale plates that make up the earth's lithosphere. Despite their massive size, and very beneficial to us, these plates move very slowly and gradually. The plates can move at rates up to half a millimeter per day, which will result in about 14cm yearly.

This seemingly slow speed is actually among the highest number recorded for plate movements, most in fact will move much slower than that. It is due to this very slow movement speed that we do not feel the movement of plate tectonics when there is no earthquake.

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Answer: A new species of frogs that feed on both the fungus and the infected species of frogs will evolve.

Explanation:

The incorrect statement regarding the plasma membrane structure is that phospholipid tails are attracted to water. The plasma membrane, also known as the cell membrane.

Plasma membrane, is a selectively permeable barrier that surrounds the cell and separates the internal environment from the external environment. It is composed of various components, primarily phospholipids and proteins.

Phospholipids, which are the main structural components of the plasma membrane, have a unique structure with hydrophilic (water-loving) heads and hydrophobic (water-repellent) tails.

This arrangement allows them to form a bilayer in which the hydrophilic heads face outward towards the aqueous environment while the hydrophobic tails are sandwiched between the layers, creating a lipid barrier.

The fluidity of the plasma membrane is essential for its function, and phospholipids in the membrane have a fluid state. This fluidity allows for the movement of molecules and proteins within the membrane, facilitating various cellular processes.

Proteins play a crucial role in the plasma membrane structure and function. They can be partially or wholly embedded in the lipid bilayer, forming integral membrane proteins, or associated with the inner or outer surface of the membrane as peripheral membrane proteins.

In summary, the incorrect statement regarding the plasma membrane structure is that phospholipid tails are attracted to water. In reality, the hydrophobic tails of phospholipids repel water, while the hydrophilic heads interact with the aqueous environment.

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Answer:

TEM

Explanation:

Connective tissue is a type of tissue found throughout the body that serves a variety of functions, including supporting and protecting organs and structures, and transporting fluids and nutrients. One specific type of connective tissue is blood connective tissue, which is commonly known as blood.

Blood connective tissue, also known as blood, is a vital type of connective tissue that is found within the body's circulatory system and is responsible for transporting oxygen, nutrients, and other important molecules throughout the body via the blood vessels.

Blood connective tissue is found within the circulatory system, which is the body's transportation system for oxygen, nutrients, and other important molecules. Blood is composed of a mixture of cells and plasma, and it is transported throughout the body in blood vessels, such as arteries, veins, and capillaries. The cells found in blood connective tissue include red blood cells, which carry oxygen to the body's tissues, and white blood cells, which help fight off infections.

The circulatory system is made up of the heart, blood vessels, and blood. The heart pumps the blood, which travels through a network of blood vessels, including arteries, veins and capillaries. Arteries carry oxygen-rich blood away from the heart to the body's tissues, while veins return oxygen-poor blood back to the heart. Capillaries are the smallest blood vessels, and they connect the arteries and veins. They allow for the exchange of oxygen, nutrients, and waste products between the blood and the body's cells.

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Answer:

Emia

Explanation:

Example - Anemia, a lack of red blood cells

Answer:

The earth system is itself an integrated system, but it can be subdivided into four main components, sub-systems or spheres: the geosphere, atmosphere, hydrosphere and biosphere. ... The atmosphere receives energy from solar radiation which warms the earth's surface and is re-emitted and conducted to the atmosphere.

Answer:

When the solar system settled into its current layout about 4.5 billion years ago, Earth formed when gravity pulled swirling gas and dust in to become the third planet from the Sun. Like its fellow terrestrial planets, Earth has a central core, a rocky mantle, and a solid crust. Our home planet Earth is a rocky, terrestrial planet. It has a solid and active surface with mountains, valleys, canyons, plains and so much more. Earth is special because it is an ocean planet. Water covers 70% of Earth's surface.

Earth's atmosphere is made mostly of nitrogen and has plenty of oxygen for us to breathe. The atmosphere also protects us from incoming meteoroids, most of which break up before they can hit the surface. Near the surface, Earth has an atmosphere that consists of 78 percent nitrogen, 21 percent oxygen, and 1 percent other gases such as argon, carbon dioxide, and neon.

The atmosphere affects Earth's long-term climate and short-term local weather and shields us from much of the harmful radiation coming from the Sun. It also protects us from meteoroids, most of which burn up in the atmosphere, seen as meteors in the night sky, before they can strike the surface as meteorites. Our planet's rapid rotation and molten nickel-iron core give rise to a magnetic field, which the solar wind distorts into a teardrop shape in space. (The solar wind is a stream of charged particles continuously ejected from the Sun.)

When charged particles from the solar wind become trapped in Earth's magnetic field, they collide with air molecules above our planet's magnetic poles. These air molecules then begin to glow and cause aurorae, or the northern and southern lights.   The magnetic field is what causes compass needles to point to the North Pole regardless of which way you turn. But the magnetic polarity of Earth can change, flipping the direction of the magnetic field. The geologic record tells scientists that a magnetic reversal takes place about every 400,000 years on average, but the timing is very irregular. As far as we know, such a magnetic reversal doesn't cause any harm to life on Earth, and a reversal is very unlikely to happen for at least another thousand years. But when it does happen, compass needles are likely to point in many different directions for a few centuries while the switch is being made. And after the switch is completed, they will all point south instead of north.​

Explanation:

Our home planet is the third planet from the Sun, and the only place we know of so far that’s inhabited by living things. While Earth is only the fifth largest planet in the solar system, it is the only world in our solar system with liquid water on the surface. Just slightly larger than nearby Venus, Earth is the biggest of the four planets closest to the Sun, all of which are made of rock and metal. The name Earth is at least 1,000 years old. All of the planets, except for Earth, were named after Greek and Roman gods and goddesses. However, the name Earth is a Germanic word, which simply means “the ground.” Earth is the only planet that has a single moon. Our Moon is the brightest and most familiar object in the night sky. In many ways, the Moon is responsible for making Earth such a great home. It stabilizes our planet's wobble, which has made the climate less variable over thousands of years.

Earth sometimes temporarily hosts orbiting asteroids or large rocks. They are typically trapped by Earth's gravity for a few months or years before returning to an orbit around the Sun. Some asteroids will be in a long “dance” with Earth as both orbit the Sun.

Some moons are bits of rock that were captured by a planet's gravity, but our Moon is likely the result of a collision billions of years ago. When Earth was a young planet, a large chunk of rock smashed into it, displacing a portion of Earth's interior. The resulting chunks clumped together and formed our Moon. With a radius of 1,080 miles (1,738 kilometers), the Moon is the fifth largest moon in our solar system (after Ganymede, Titan, Callisto, and Io).

The Moon is an average of 238,855 miles (384,400 kilometers) away from Earth. That means 30 Earth-sized planets could fit in between Earth and its Moon.

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The  phrase that describes natural selection is individuals with adaptive inherited traits are more likely to survive and produce offspring.

Hence, C is the correct option

In general, Natural selection is the process through which individuals those who are having advantageous traits for certain type of environment are more likely to survive and reproduce also by passing their advantageous traits to their offspring.

Also,  the process of natural selection is not random, because the  individuals having specific  traits are more likely to survive and reproduce with the help of selective pressures of the environment. Therefore, the correct phrase is individuals with adaptive inherited traits are more likely to survive and produce offspring.

Hence, C is the correct option

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Answer:

The answer is True!

Explanation:

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