1. Which of the following structures does not contribute to the composition of semen? A. Prostrate gland B. Vas deferens C. Epididymis D. Seminal vesicle 2. Many structures in the male and female reproductive system have similar functions. Which of the following structures from the male reproductive system has no comparable structure in the female reproductive system?
A. Seminal vesicle B. Vas deferens C. Sertoli cells D. Testes 3. If the number of Sertoli cells decreased in males testes , which of the following effects would occur? A. The testes would decrease in size , and Lh levels would decrease. B. The mans sperm count would decrease and fsh levels will increase. C. Body changes for puberty would be delayed and testosterone would decrease. D. The hypothalamus would enter hyperactivity and GnRH levels would increase.

False. Slow twitch muscles tire more quickly than fast twitch muscles. Slow twitch muscles are more fatigue resistant.

There are two types of skeletal muscles: fast-twitch and slow-twitch muscles. Fast-twitch muscles contract quickly and release energy in a very short time. Meanwhile, slow-twitch muscles are muscles that contract less quickly and release energy gradually.

Slow-twitch muscles that release energy gradually cause the power generated to be more controlled so that it is more resistant to fatigue, so it is usually used for long-distance running because of its long endurance and not getting tired easily. While fast-twitch muscles produce high energy in a short time but tire easily, so it is used for vigorous bursts of movement such as sprinting because it tires quickly.

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Gender bias consists of showing favoritism toward one gender over the other.

Gender bias is conduct that suggests favoritism towards one gender over another. Most often, gender bias is the act of favoring guys and/or boys over girls and/or girls. In this socialization process, youngsters are brought to sure roles which might be commonly connected to their organic sex. The time period gender function refers to society's idea of the way women and men are anticipated to behave and the way they ought to behave. These roles are primarily based totally on norms, or standards, created through society. Gender identification is every person's inner and man or woman enjoy of gender. It is a person's experience of being a woman, a man, both, neither, or everywhere alongside the gender spectrum.

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Answer: D

Explanation: Jack didn't get the trait attached trait from his parents which was a dominate trait since both of them had it. Because of that he has a mutation. Since the mutation doesn't affect his hearing than it's a neutral mutation.

All other created components are formed by myeloid stem cells, including erythrocytes, megakaryocytes, which make platelets, and a myeloblast lineage, which produces monocytes and three types of granular leukocytes: neutrophils, eosinophils, and basophils.

When referred to either a heart muscle cell (cardiomyocyte) or a smooth muscle cell (both of which are tiny cells), a muscle cell is also known as a myocyte. A muscle fiber is a long, threadlike skeletal muscle cell with numerous nuclei. Myoblasts are embryonic precursor cells that grow into muscle cells (including myocytes and muscle fibers).

Myoblasts combine to generate multinucleated skeletal muscle cells known as syncytia during the myogenesis process.

Both skeletal and cardiac muscle cells include myofibrils and sarcomeres and create striated muscle tissue.

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stem cells. All other generated elements, such as erythrocytes, platelets produced by megakaryocytes, monocytes, and the three types of granular leukocytes—neutrophils, eosinophils, and basophils—are derived from myeloid stem cells.

A progenitor cell known as a granulocyte/macrophage (GM) progenitor cell gives rise to the two professional phagocytic cells, neutrophils and macrophages. Hemocytoblasts are a type of stem cell found in the red bone marrow. They are the source of all the blood's produced constituents. A stem cell will differentiate into a new red blood cell if it decides to become a proerythroblast, a type of cell. A red blood cell can be formed in roughly two days.

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During DNA replication, there is a formation of multiple bubbles in the DNA that proceed with replication in both directions from the bubble.

DNA replication can be defined as the process by which a particular organism replicates its DNA. DNA replication plays a very important role in the process of reproduction and inheritance in living beings.

The two strands, which are the leading as well as the lagging strand, of the DNA run in opposite directions from each other and hence they must be constructed in different ways. The DNA replication in case of eukaryotes is multi-replicon which means that there a number of different origins of replication and hence multiple replication bubbles are formed which allow the replication of the DNA strand.

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It is true that environmental influences can take precedence over genetic ones in how plants adapt to their surroundings.

Environmental variables that aren't encoded in the organism's DNA are part of the process of adaptation to the environment.

According to science, how genes and environment interact affects how people grow. Research dispels the myth that genes are "cast in stone," demonstrating that early experiences may affect which genes are expressed, how they are expressed, and even whether they are expressed at all.

Environmental Factors

Environment have greater effect on transcriptomes than genetics which is why it is able to influence disease risks and more pronounced in adaptation of organisms to the environment.

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Isaac Newton is referred to as the scientist which performed different experiments on light.

This is referred to as a procedure which is carried out to support or refute a hypothesis and is also used to ascertain the authenticity through different people performing it under the same conditions.

Isaac Newton on the other hand is referred to as a physicist and mathematician and he performed a lot of experiments with sunlight and prisms.

He demonstrated that clear white light was composed of seven visible colors and he did that by refracting light onto a piece of wood which had a small hole which made him able to obtain a beam of light with a pure color and the color refracted was the same.

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A muscle that opposes, or reverses, a particular movement is a(n antagonist.

The protagonist and their world order are frequently pitted against the adversary. While most tales show the protagonist as a hero and the adversary as a villain, as in Harry Potter and Lord Voldemort, the antagonist does not necessarily seem as the villain. In certain stories, such as Death Note's Light Yagami and L, the protagonist is a villain and the antagonist is an opposing hero.

Antagonists are typically shown as having less savory moral choices than heroes. An author will frequently exploit this circumstance to generate tension inside a novel. However, this is only a convention. An example of this being reversed is the character Macduff from Macbeth, who is morally right.

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Answer:

vacuole

Explanation:

Vacuoles might store food or any variety of nutrients a cell might need to survive.

S waves can travel as far as 684km in three minutes.

This is also known as secondary waves or shear waves and they are known as lateral waves that move side to side as a sine wave perpendicular to the direction of the wave. They are however slower than P wave which different studies have determined and confirmed.

Studies have also shown that the S waves travel at a distance of 3.8kilometers per second and we are ware that 180 seconds make up three minutes. Then we multiply 180 seconds by 3.8 kilometers which will result in 684km and is therefore the reason why it was chosen as the correct choice.

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Most E. coli antisense RNAs work with a protein called Hfq to regulate their target mRNAs.

The Hfq protein (also known as HF-I protein) encoded by the Hfq gene was discovered in 1968 as an Escherichia coli host factor that is important for bacteriophage replication. It is now clear that Hfq is an abundant bacterial RNA-binding protein with many important physiological roles, usually mediated through interactions with Hfq-binding sRNA.

Hfq mediates its pleiotropic effect through multiple mechanisms. These interact with regulatory sRNAs and facilitate their antisense interactions with their targets. It also acts independently to modulate mRNA decay (directing the mRNA transcript to decay) and also acts as a repressor of mRNA translation.

According to the explanation above, the correct answer is C.

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Condyloid joints are found in the human body at the base of the thumb, the wrist, the elbow, and the knee.

At the base of the thumb, the carpometacarpal joint is a condyloid joint that connects the carpal bone of the wrist to the metacarpal bone of the thumb. This joint allows the thumb to flex and extend, as well as move side-to-side.

The wrist itself is composed of several different condyloid joints: the radiocarpal joint connects the radius bone of the forearm to the carpal bones of the wrist; the midcarpal joint connects the carpals together; and the intercarpal joints connect the carpals to each other. The wrist condyloid joints allow the wrist to flex and extend, as well as rotate in a circular motion.

The elbow is a complex condyloid joint composed of three articulations: the humeroulnar joint, which connects the humerus bone of the upper arm to the ulna bone of the forearm; the humeroradial joint, which connects the humerus to the radius bone of the forearm; and the proximal radioulnar joint, which connects the radius and ulna bones to each other near the elbow. The elbow joint allows the forearm to flex and extend, as well as rotate in a circular motion.

Finally, the knee joint is the largest condyloid joint in the body. It is composed of the femorotibial joint, which connects the femur bone of the thigh to the tibia bone of the leg, and the femoropatellar joint, which connects the femur to the patella (kneecap). This joint allows the leg to flex and extend, as well as rotate in a circular motion.

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Although lung cancer is not common, about  80 percent of all lung cancers occur in smokers, Correct option (c).

Cancer is a disease in which the cells of the body multiply uncontrolled. Lung cancer occurs when cancer originates in the lungs.

Lung cancer starts in the lungs and can spread to the lymph nodes or other organs, including the brain. Cancer can spread to the lungs from other organs. Metastasis occurs when cancer cells travel from one organ to another.

Lung cancer is frequently divided into two types: small cell and non-small cell (including adenocarcinoma and squamous cell carcinoma). These types of lung cancer grow and are treated differently. Non-small cell lung cancer outnumbers small cell lung cancer.

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Answer:.

Explanation:

When an impulse reaches the axon terminal, Ca²⁺ ions trigger the fusion of synaptic vesicles with the presynaptic membrane, thereby releasing the neurotransmitters in the vesicles into the synapse and initiating synaptic transmission.

Receptor cells receive the impulse and initiate an action potential.

An impulse stops at a synapse since there is a gap at the synapse.

Impulses can be stopped by:

A synapse is a gap or junction between two neurons.

Impulse traveling down a neuron stops at a synapse.

Neurotransmitters are released to continue the impulse across the synapse.

Inhibiting the release of neurotransmitters will stop an impulse.

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If an environmental gradient changes so rapidly that it quickly goes beyond a species' limit of tolerance before the species is able to adapt then there will be intolerance to the given condition which can disturb the diversity of the species.

A species is both a unit of biodiversity and an organism's basic taxonomic classification in biology. A species is the largest collection of organisms in which any two people of the appropriate sexes or mating types can conceive a fertile offspring, typically through sexual reproduction. In addition, a species can be recognized by its karyotype, DNA pattern, anatomical features, behavioral traits, or ecological niche. Additionally, paleontologists employ the chronospecies concept because fossil reproduction cannot be investigated.

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Condyloid joints, additionally called ellipsoid joints, are composed of an egg-formed bone called a condyle that suits right into a in addition formed hollow space.

Although it sounds just like a ball and socket joint, condyloid joints simplest permit for forward-backward and aspect to aspect motion and do now no longer permit rotation. Condyloid joints are gift withinside the elbow, wrist joints, carpals of the wrist, and at the bottom of the index finger. The MCP joint is shaped among the metacarpal bones and the proximal phalanges of the fingers. In this, the rounded head of the metacarpal articulates with the shallow hollow space of proximal phalanges. The wrist joint additionally called the radiocarpal joint is a condyloid synovial joint of the distal top limb that connects and serves as a transition factor among the forearm and hand.

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Three examples of genetic traits passed down from parents to their children are intelligence, endurance, and temperament (emotions).

Inheritance or heredity is a decrease in traits that are passed down from parents or parents to children or offspring. The characteristics of a living thing are passed down through male sex cells and female cells.

The part of the cell that is responsible for reducing the inheritance of properties is the nucleus of the cell. Inside the cell nucleus, there is something called a chromosome which functions as a hereditary substance. Factors carrying traits that play an important role in the process of inheritance of these traits are called genes.

Egg cells and sperm cells each carry their genes or chromosomes. The fusion results in the formation of a zygote. The zygote that is formed contains a combination of genes and chromosomes from the parent (parents). This explains how the physical characteristics of the parent (parents) can be passed on to their offspring (children).

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Answer: Yes, but this will completely destroy the cell. One of the ways to do this is osmosis.

Answer: yes but

Without water, cell membranes would lack structure, and without proper membrane structure, cells would be unable to keep important molecules inside the cell and harmful molecules outside the cell removing all of the water would destroy the cell.

Answer: Water can be used as an magnifiying glass.

Explanation: If it was in a magnifying glass it would make stuff look bigger and in that situation water does the same thing.

In watermelon plants, some have solid green fruit (G) and some have striped fruit (g). When a watermelon plant that only has the solid green fruit (GG) is used to pollinate a plant that has both solid and striped fruit (Gg), then 50% of the offspring will have striped watermelons.

The 50% of the offspring of this cross will bear striped watermelons because the heterozygous green (Gg) watermelon plant has one dominant allele (G) and one recessive allele (g).

When the pollen from the homozygous green (GG) watermelon plant is used to pollinate the heterozygous green (Gg) watermelon plant, the offspring will have a 50/50 chance of inheriting either the dominant allele (G) or the recessive allele (g).

Since the allele for striped fruit (g) is recessive, the offspring will only show the striped watermelon trait if they inherit two recessive alleles (gg). Therefore, 50% of the offspring will bear striped watermelons.

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Because the smooth endoplasmic reticulum is an extension of the rough ER, it is primarily responsible for lipid synthesis, detoxification, and has glycogen granules on its surface. This is where lipids and glycogen are synthesized.

therefore, correct answer is (c) smooth endoplasmic reticulum.

An interconnected network of tubules, vesicles, and cisternae is created by the eukaryotic organelle known as the endoplasmic reticulum (ER) in cellular structures. Rough endoplasmic reticulum makes proteins, whereas smooth endoplasmic reticulum makes lipids and steroids, breaks down carbs and steroids, controls calcium levels, detoxifies drugs, and attaches receptors to proteins in cell membranes. Just the calcium levels are controlled by the sarcoplasmic reticulum.

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Answer:

The correct answer is b) Fossils fuels

IT IS NON-RENEWABLE ENERGY AND THE MOST IMPORTANT.

Explanation:

so, what is non-renewble energy:

Non-renewable resources are natural resources that come from sources that will run out and will never be replenished in our lifetime. Carbon is the main element of fossil fuels. The resources typically take millions of years to develop.

The main example of non-renewable sources is coal, and natural gas, which humans draw to produce energy.

These resources are formed from organic materials from animals and plants. since the material takes a million years to form and also requires millions of years to replenish.

Humans extract these resources in the form of liquid, gas, and solids and then convert them into easy forms for easy consumption.

Although, they can be really harmful to the environment and are the most notable contributor to global warming.

Use of the non-renewable energy sources for production in countries can also lead to the degradation of the environment causing global warming and other dangerous situation

Biomes are groups of related creatures that live in a certain climate.

As a result, organisms is the term used to describe living things. The cell's DNA, or genetic composition, controls how it acts. The nucleus, a membrane-bound structure found in some animal species called eukaryotes, contains the DNA.

Cells, which are regarded as the basic building blocks of life, make up every living thing. Even one-celled creatures are sophisticated! Atoms create molecules, which create the cell organelles and components within each cell. Similar cells form tissues in multicellular organisms.

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Yes. Muscular endurance is related to both health and performance:

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From the right leg, the lymph moves in the d order. right lumbar trunk, thoracic duct, left subclavian vein

Lymph nodes are part of the immune system which functions to fight infections caused by bacteria, viruses, germs, and parasites. If an infection occurs, the gland will swell to give a sign. After the infection subsides, the gland will deflate on its own and return to its original size.

Lymph nodes have immune cells called lymphocytes in them. They attack bacteria, viruses, and other things that can make the body feel sick. When fighting a dangerous foreign object, the body produces more of these immune cells, so swelling of the glands is inevitable. The order of lymph from the right leg is the right lumbar trunk, the thoracic duct, and then the left subclavian vein.

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Answer:

interstitial

Explanation:

interstitial growth grows bones longitudinally (long) and appositional is more for increasing bone's diameter

Brain dopamine levels are important in all of these except  Huntington's disease. The functional capacities of a person are significantly impacted by Huntington's diseases.

Huntington's disease initial signs and symptoms significantly include: trouble focusing, memory lapses, sadness, which includes poor mood, a lack of interest in activities, and feelings of hopelessness, as well as tripping and clumsiness.  With time, Huntington's disease impacted certain areas of the brain's functionality. It is something that a person inherits from their parents. After a period of up to 20 years, it typically becomes fatal as a result of a slow progression.

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The accommodations on the space station would help prevent problems associated with weak muscles, requiring the astronaut to be helped from the spacecraft once back on Earth is B. Outfit the space station with exercise equipment.

The relationship between weak muscles in astronauts and long seasons in space is based on the fact that the attractive forces or gravity in space are lower than on earth, thereby muscles need to exercise in order to avoid the loss of muscle mass.

Therefore, with this data, we can see that the relationship between weak muscles and space are cemented on the observation that gravity considerably decreases outside the earth's atmosphere when compared to space.

Complete question:

An astronaut returns from six months on the space station. The astronaut’s muscles are weak, requiring the astronaut to be helped from the spacecraft once back on Earth. Which of the following accommodations on the space station would help prevent this problem?

Provide food that provides astronauts with more energy. 

Outfit the space station with exercise equipment. 

Increase the oxygen levels inside the space station. 

Design spacesuits that are lighter and easier to wear.

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