The production of sterile mules by interbreeding between female horses (mares) and male donkeys (jacks) is an example of _______.
(A) reduced hybrid viability (B) hybrid breakdown (C) reduced hybrid fertility (D) mechanical isolation

Yet, fossil and comparative data shows that it was considerably more like living apes than it was like modern humans.

Our nearest extinct human ancestors were the Neanderthals and the Denisovans, a group of people from Asia. According to scientific evidence, our two species descended from a single common ancestor. According to recent study, all fossil and genomic evidence suggests that the split between the Neanderthal and modern human lineages occurred no more than 500,000 years ago.

All extant humans, chimps, gorillas, orangutans, or their extinct relatives are members of the Hominidae family of creatures. Scientists generally agree that among the living animals in this group, people were most closely related from chimpanzees based on morphological and Genomic comparisons.

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Answer:

Camillo Golgi was an Italian scientist who discovered Golgi bodies in 1873. He used them as a landmark to describe cellular structure in the brain. They're composed of stacks of membranes, each one containing a set of proteins called Golgi apparatus proteins. This stack can extend from 1 to 10 micrometers thick

Answer: He established two types of malaria, tertian and quartan fevers caused by Plasmodium vivax and Plasmodium malaria respectively. In 1886, he discovered that malarial fever (paroxysm) was produced by the asexual stage in the human blood (called erythrocytic cycle, or Golgi cycle).

Answer:

bacteria

Explanation: hope this helps

The muscles of the abdomen are not external eye muscles. The Rectus Abdominis, sometimes known as your "six-pack," is the top layer of the abdominal muscles.

rectus abdominis, which is located at the front of pelvic between the pubic bone and the ribs. When this muscle contracts, it produces the distinctive lumps or bulges known as "the six pack." The rectus abdominis' primary job is to shift the body between both the pelvis and the ribs.

An damaged abdominal muscle can be painful and uncomfortable, especially when moving. People may experience the following signs around the stomach if they have torn a muscle: discomfort or soreness. pain.

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Answer:

the answer is D) earthquakes

Explanation:

soil erosion involves taking away of the top layer of the soil.... as for earthquakes.. these are caused by tilting and sliding of tectonic plates of which soil erosion takes no place in causing such actions

Answer:

Option D) Earthquakes.

Is your answer.

Explanation:

Hope you have a great day.

As for comparison, phasic smooth muscle displays rhythmic contractile activity and is associated with gastrointestinal and urogenital systems. While, tonic smooth muscle is continuously contracted and is associated with the large arteries and veins.

Biology routinely distinguishes between smooth muscle tissues that are "tonic" (producing a slow, sustained isometric contraction) and those that are "phasic" (generating a fast transient isometric contraction).

Smooth muscle is divided into tonic and phasic subtypes, but there are some significant functional differences between these muscle types.

The phasic smooth muscles function as unitary muscles, with action potentials spreading from cell to cell, resulting in coordinated phasic contraction, as seen in gut peristalsis.

While,

Tonic smooth muscle behaves as multiple independent units, or motor units, with graded changes in membrane potential of each unit, i.e., without action potential propagation, resulting in graded changes in force (tone).

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A page is to a book as a gene is to a genome.

A gene is a fundamental unit of heredity and a DNA sequence that determines the production of a specific gene, which can be a RNA or protein.

However, the genome is the collection of or the total of all the DNA sequences in an organism.

Therefore, as a page which is a unit is to a book, so as the gene is to the genome.

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Answer: Plant because they survive by water and sunlight.

Explanation:

Answer: i think the answer is B enzyme

Explanation: i hope this helps

Answer:

if the baby is still small you have to take a pill or when the baby is a little big they have to do a procedure.

Explanation:

Answer:

From mother to child.

Unprotected sexual intercourse.

Sharing of sharp objects.

Unscreened blood transfusion.

Contact with body fluid of an infected person

Answer:

Bacteria

Explanation:

Bacteria and fungi in the soil is responsible for turning nitrate into nitrogen gas, which will reenter the atmosphere

Answer:

 Which of the following best describes the function of the human nervous system?

Explanation:

The nervous system collects and responds to information about the internal and external environment

Answer:

handle and the dial is the correct answer

While the immune system is essential for protecting the body against disease, there are instances in which it can actually be harmful to an individual. One such example is in the case of autoimmune disorders, where the immune system mistakenly attacks healthy cells and tissues in the body. This can lead to a range of conditions, such as lupus, rheumatoid arthritis, and multiple sclerosis.

In other cases, the immune system can overreact to harmless substances in the environment, such as pollen or pet dander, resulting in allergies. Additionally, the immune system can respond inappropriately to transplanted organs or tissues, leading to rejection. In some instances, the immune system may also become weakened, such as in the case of HIV or certain types of cancer. This can leave the individual vulnerable to infections and diseases that the immune system would normally be able to fight off.

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Answer:

Here's your answer

Explanation:

Normative economics focuses on the value of economic fairness, or what the economy "should be" or "ought to be." While positive economics is based on fact and cannot be approved or disapproved, normative economics is based on value judgments.

Answer:

According to normative economics, an economy "should be" or "ought to be." Economics is founded on value judgments, not facts.

Explanation:

Gene duplication events often occur as a result of errors during DNA replication or repair, which can create an additional copy of a gene. Alternatively, one copy may evolve to have a new function while the other retains its original function.

After a gene duplication event, the least likely scenario is for both genes to become pseudogenes. Gene duplication events often occur as a result of errors during DNA replication or repair, which can create an additional copy of a gene. In some cases, both copies of the gene may retain their original function and be expressed in different tissues or at different times. Alternatively, one copy may evolve to have a new function while the other retains its original function. While it is possible for one copy to become a pseudogene, it is unlikely that both copies would become non-functional as this would be disadvantageous for the organism. Therefore, the scenario where both genes become pseudogenes is the least likely to occur after a gene duplication event.

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Answer:

The answer is option D, ecosystem

The inferior angle of the scapula is the point where the medial and lateral borders meet.

The inferior angle of the scapula may be characterized as the lowest portion of the scapula which is significantly covered by the muscles known as latissimus dorsi muscle. It remarkably migrates forwards round the chest when the arm is captured.

The inferior angle of the scapula is directly correlated with the T7, T8, and T9 of the spinous process or spinal level. It typically depends on the source of Gray's anatomy.

Therefore, the inferior angle is constructed by adjoining the medial and lateral borders of the scapula.

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The thin filaments of actin glide through the heavy filaments of myosin within the sarcomeres of muscle fibres to cause contraction, according to the sliding filament theory of muscle contraction.

The sliding filament theory states that myosin filaments shrink sarcomeres within a muscle fibre by pulling actin filaments closer together. A muscle fibre contracts when every sarcomere in the fibre shortens.

The sliding filament theory is the most widely used theory to explain muscular contraction. The sarcomere is the basic contractile unit of muscle. According to this view, active force is produced as the myosin filaments are pushed aside by the actin filaments.

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Answer:

D. six or 6

Explanation:

edg practice test 22

There are six types of joints in the human body. The correct option is D.

Synarthrosis (immovable), Amphiarthrosis (slightly movable), and Diaarthrosis are the three types of joints that can be used functionally (freely movable).

Synarthroses are fibrous, amphiarthroses are cartilaginous, and diarthrosis is synovial, according to the two classification systems.

Joint with a ball and socket. The ball and socket joint, which allows movement in all directions, has one bone's rounded head resting in another bone's cup.

A flexible joint: A door would open and close along one plane and in one direction at the joint. Suspender joint: The saddle joint does not permit rotation, but it does provide backward and forward mobility.

Ball and socket, saddle, condyloid, pivot, and gliding are among the six varieties of freely movable joints.

Therefore, the correct option is D. 6.

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Scientists use reverse transcriptase enzymes to make DNA from RNA.

What is RNA?

RNA, an abbreviation of ribonucleic acid, complex compound of high molecular weight that functions in cellular protein synthesis and replaces DNA (deoxyribonucleic acid) as a carrier of genetic codes in some viruses. RNA consists of ribose nucleotides (nitrogenous bases appended to a ribose sugar) attached by phosphodiester bonds, forming strands of varying lengths. The nitrogenous bases in RNA are adenine, guanine, cytosine, and uracil, which replace thymine in DNA.

structure of RNA

RNA is normally a biopolymer with a single strand. The ribonucleotide chain is folded into complex structural shapes with bulges and helices as a result of intrachain base-pairing and the presence of self-complementary sequences in the RNA strand. As a result of the ribose sugar and nitrogenous bases' capacity to be changed in a variety of ways by cellular enzymes that attach chemical groups (such as methyl groups) to the chain, the three-dimensional structure of RNA is essential to its stability and function. These alterations make it possible for chemical connections to develop between far-flung areas of the RNA strand, resulting in intricate twists in the RNA chain that further solidify the RNA structure. Weakly stabilized and modified structural molecules are easily degraded.

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Answer:

The homogeneous mixture is only in the one phase of matter, whereas heterogeneous mixture is always in two or more than two different phases of matter. Solutions are termed as the homogeneous mixtures, on the other hand, suspensions or colloids are termed as the heterogeneous mixtures.

Examples:

Homogeneous:

Bronze: this alloy is an example of homogeneous substances since it is composed of tin and copper.

Milk : this mixture that we see in a uniform way is composed of substances such as water and fats.

Heterogeneous:

Mixtures in two or more phases are heterogeneous mixtures. Examples include ice cubes in a drink, sand and water, and salt and oil. The liquid that is immiscible form heterogeneous mixtures. A good example is a mixture of oil and water.

Answer:

Explanation:

Satellites can photograph and send back images of various Earth features. One example is the Great Barrier Reef in Australia, which can be monitored for changes in coral cover and health over time.

Other examples include deforestation in the Amazon rainforest, the movement of sea ice in the polar regions, and the growth of urban areas and infrastructure.