The __________ contributes a clotting component to semen that activates a protein that causes semen to stick to the inside of the female reproductive system rather than flowing back out after ejaculation.

Answer:

A) birds have a large opening where the beak should be.

Explanation:

when scientists turn off the gene that makes beaks in birds, the birds have a mouth where no teeth are present. The birds have mouth because the bird resembles and closely related to the dinosaur. There are some proteins that is responsible for the occurrence of beak but when the genes are turn off these protein stop producing that leads to turn the beak place into mouth.

Answer:

Penicillin

Explanation:

I took the course

Answer:

c

Explanation:

The composition of proteins is different from that of carbohydrates due to the presence of nitrogen.

Proteins contain nitrogen, in addition to carbon, hydrogen, and oxygen, which are also found in carbohydrates. The nitrogen atom in proteins is part of the amino group (-NH2), which is one of the defining features of amino acids, the building blocks of proteins. This makes the structure and function of proteins distinct from those of carbohydrates, which are primarily composed of carbon, hydrogen, and oxygen atoms. The presence of nitrogen in proteins allows for a wide range of chemical reactions to occur, enabling proteins to carry out a variety of functions in the body, such as catalyzing metabolic reactions, transporting molecules, and providing structural support.

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The pupillary pathways consist of the afferent and efferent pathways. The afferent pathway is responsible for transmitting signals from the retina to the brain, initiating pupillary constriction. The efferent pathway involves signals traveling from the brain to the pupillary muscles, causing pupillary constriction or dilation.

The afferent pupillary pathway for constriction starts with the light entering the eye and stimulating the photoreceptor cells in the retina. The photoreceptor cells, specifically the rods and cones, convert the light into electrical signals, which are then transmitted to the bipolar cells and ganglion cells in the retina. The axons of the ganglion cells form the optic nerve (CN II), which carries the visual information from the retina to the brain.

The optic nerve fibers from each eye partially cross over at the optic chiasm, resulting in a partial decussation. From the optic chiasm, the axons continue as the optic tracts, and they project to the pretectal nuclei in the midbrain. The pretectal nuclei receive input from both optic tracts and play a crucial role in coordinating pupillary responses. The pretectal nuclei then send fibers to the Edinger-Westphal nuclei, which are located in the midbrain's oculomotor nuclei complex.

The efferent pupillary pathway involves the Edinger-Westphal nuclei. The Edinger-Westphal nuclei receive signals from the pretectal nuclei and send parasympathetic fibers through the oculomotor nerve (CN III). The parasympathetic fibers travel through the ciliary ganglion and synapse with the ciliary ganglion neurons. From the ciliary ganglion, the postganglionic parasympathetic fibers travel with the short ciliary nerves to reach the sphincter pupillae muscle, which is responsible for pupillary constriction. When the sphincter pupillae muscle contracts, the pupil constricts, allowing less light to enter the eye.

In summary, the afferent pupillary pathway hor constriction involves the transmission of visual signals from the retina to the brain, while the efferent pathway involves signals traveling from the brain to the pupillary muscles, resulting in pupillary constriction.

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Answer:

"Is human travel beyond our solar system possible?" can be answered using science.

Explanation:

I just took the test.

Hope this helps! - J

The question that can be answered by science is "Is human travel beyond our solar system possible". Thus, the correct option for this question is A.

Science may be defined as a branch of scientific study that involves the application of knowledge and understanding of the natural and social world following a systematic methodology based on evidence.

It can broadly be classified into three categories such as Physics, Chemistry, and biology. Each sub-classification illustrates its own field of detailed study.

Science always deals with the concept of nature as well as natural phenomena. So, among the given options, the solar system is an important component of it.

The answer to this question is little bit complex but definitely the answer should be determined with the help of science only.

Therefore, the question that can be answered by science is "Is human travel beyond our solar system possible."

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Answer:

Gas exchange happens in the alveoli in the lungs and the capillaries that envelop them. When you  inhale oxygen, this one  moves from the alveoli to the blood in the capillaries, and carbon dioxide moves from the blood in the capillaries to the air in the alveoli. In simple words the exchange comes from the inhalation and exhalation of gases

Explanation:

a barometer is one of the most common instrument used for weather forecasting and measuring tornadoes.

Answer:

Plant cell

Explanation:

Plant cells are one of the only cells that contain both a cell wall and chloroplasts (used for photosynthesis).

Answer: A plant cell

Explanation: It's a plant cell because it has a cell wall and chloroplasts.

The possible genotypes of this cross are ww (50%) and Ww (50%). Moreover, the possible phenotypes will be white wings (genotype Ww, 50%) and yellow wings (genotype ww, 50%).

An allele is a given gene variant (i.e., a version of a gene).

A homo-zygous individual is an organism that inherited the two same alleles for a given gene/locus, whereas a heterozygous individual inherited two different alleles.

Complete dominance occurs when the presence of an allele called 'dominant allele' completely masks the expression of the recessive allele in heterozygous individuals.

In this case, the parental with the genotype Ww can produce two types of gametes (either W or w) with the same chance of occurring (50%); whereas the parental with the genotype Ww can produce only one type of gamete (w).

In consequence, the progeny of this cross may have a genotype Ww or ww with the same chance of occurring (50%).

The genotype Ww expresses the dominant trait (white wings), whereas the genotype ww expresses the recessive trait (yellow wings).

In conclusion, the possible genotypes of this cross are ww (50%) and Ww (50%). Moreover, the possible phenotypes will be white wings (genotype Ww, 50%) and yellow wings (genotype ww, 50%).

Answer:I believe that the answer would be 18

Explanation:

32 divided by 2 is 18

If a DNA strand has 32% Guanine before semi-conservative replication occurs, then the percent Thymine will each new strand have after replication will be 18%.

In conclusion, if a DNA strand has 32% of Guanine before replication, then the percent of Thymine after replication will be 18%.

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Option that explains that skeletal muscle fibers have multiple nuclei be is (B) Muscle fibers form from the fusion of embryonic myoblast cells and satellite cells; thus each fiber contains multiple nuclei.

Skeletal muscle fibers are multinucleated cells, meaning they have more than one nucleus. This is due to the process of myogenesis, which involves the fusion of multiple myoblast cells to form a mature skeletal muscle fiber.

During development, myoblast cells, which are specialized muscle precursor cells, undergo proliferation and differentiation. These myoblast cells fuse together to form a single, large skeletal muscle fiber. However, instead of the nuclei of the myoblast cells merging into a single nucleus, they remain separate within the resulting muscle fiber. As a result, the mature skeletal muscle fiber ends up with multiple nuclei distributed throughout its length.

The presence of multiple nuclei in skeletal muscle fibers is advantageous for their functioning. The nuclei provide genetic material and contribute to protein synthesis, which is essential for muscle growth, repair, and adaptation to exercise.

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The presence of chlorophyll for photosynthesis is not an exclusive adaptation of land plants, as algae also contain chlorophyll and perform photosynthesis.

The three adaptations of land plants that distinguish them from their algal relatives are: The presence of stomata for gas exchange. The presence of a waxy cuticle on air-exposed surfaces. The presence of specialized water transporting tissues.
The adaptations of land plants that distinguish them from their algal relatives include:
1. The presence of stomata for gas exchange: Stomata are small openings on the surface of leaves that allow plants to exchange gases, such as oxygen and carbon dioxide, with their environment.
2. The presence of a waxy cuticle on air-exposed surfaces: The waxy cuticle is a protective layer that covers the outer surfaces of leaves and stems, helping to prevent water loss and protect the plant from desiccation.
3. The presence of specialized water transporting tissues: Land plants have developed specialized tissues called xylem and phloem to transport water, nutrients, and sugars throughout the plant. This allows them to grow taller and survive in various environments.
Note that the presence of chlorophyll for photosynthesis is not an exclusive adaptation of land plants, as algae also contain chlorophyll and perform photosynthesis.

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A mountain lion eats a mule deer, which is an herbivore so the mountain lion would be a secondary consumer. So, the correct option is (B).

An ecological pyramid is a graphical representation of the distribution of energy in the ecosystem. The biomass is dispersed between the number of individual organism at every trophic level. Every level of order of the food chain makes a trophic level.

Ecological pyramids acknowledges the trophic arrangement of the ecosystem. The pyramid in the biological system consists of various surfaces starting from the initial stage to the summit of the pyramid.

The autotrophs or the producers are at the prime trophic level. They reconstruct the sun-powered energy and make it attainable for heterotrophs or consumers. The herbivores or the primary consumers are situated at the second level, small carnivores or the secondary consumers comes at the third level, and larger carnivores or the tertiary consumers structure the fourth trophic level.

Thus, a mountain lion eats a mule deer, which is an herbivore so the mountain lion would be a secondary consumer. So, the correct option is (B).

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It is not likely that any living organism could survive on the Martian surface because of Ultraviolet radiation. Thus, the correct option for this question is A.

The Martian surface may be defined as a type of surface that is rocky in nature with canyons, volcanoes, dry lake beds, and craters all over it. Red dust covers most of its surface. It is basically made up of iron, nickel, and sulfur.

There have been organisms found in places on the Earth where everyone said it would be impossible to for anything to survive. This is because of the emission of high amounts of ultraviolet radiation that makes an environment unfit for an organism's survival.

Therefore, the correct option for this question is A.

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Answer:

B

Explanation:

When your body gets to the tempature of 98.8F you start to over heat and sweat.

Answer:

Prescription drug that does not produce a high, intoxication, or euphoric state is anti-psychotics.

These drugs are primarily used to treat mental illnesses such as schizophrenia and bipolar disorder by targeting specific neurotransmitters in the brain. They work by blocking dopamine receptors, which helps to reduce symptoms such as hallucinations and delusions. Narcotics and sedative-hypnotics, on the other hand, are known for producing a high or euphoric state and are often used recreationally or abused.

Narcotics include drugs such as heroin and morphine, while sedative-hypnotics include drugs such as barbiturates and benzodiazepines. It is important to always follow the prescription instructions provided by a healthcare professional and not misuse or abuse prescription drugs. Doing so can have serious consequences, including addiction, overdose, and death.

Explanation:

They point to linkages in evolution. One such instance is the humerus bone, which is present in all vertebrates with limbs and was passed down from the ancestor of all vertebrates with limbs (an early amphibian).

The bone in your upper arm between your elbow and shoulder is called the humerus. Its primary job is to give your shoulder support and a wide range of arm movements.

The humerus supports the arm structurally and serves as the place at which numerous significant upper body muscles, including the pectoralis major, latissimus dorsi, and rotator cuff muscles, insert.

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Answer: All told, the Krebs cycle forms (per two molecules of pyruvic acid) two ATP molecules, ten NADH molecules, and two FADH2 molecules. The NADH and the FADH2 will be used in the electron transport system.

Explanation:

All told, the Krebs cycle forms (per two molecules of pyruvic acid) two ATP molecules, ten NADH molecules, and two FADH2 molecules. The NADH and the FADH2 will be used in the electron transport system.

Kreb's cycle or Tricarboxylic acid cycle is a series of redox reactions, which take place in the mitochondrial matrix. The cycle yields energy in the form of GTP.

The carriers of the cycle are two ATP molecules, reduced 10 NADH and 2 FADH2, two carbon dioxide, and the initial product of two molecules of pyruvate.

The cycle can be described as:

Thus, the Krebs cycle yields NADH and FADH2, which enter the electron transport chain.

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According to Jerry's data, the amount of daylight is getting shorter. If this pattern holds, daytime hours will continue to shorten, and nighttime hours will lengthen.

During the observations, Jerry is recording the amount of daylight his town receives throughout the month of September.

The length of day and night on the surface of the earth varies from season to season due to the axial tilt of the earth's rotation axis with regard to its orbital axis.

Therefore, the length of the nighttime will increase the next week is the prediction according to Jerry's data.

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The given question is incomplete, so the most probable complete question is,

Jerry is recording the amount of daylight his town receives throughout the month of September. He records the data each Monday of the month. His results are shown in the table below.

Hours of Daylight Received

Week Hours of Daylight

1 8.34

2 8.12

3 7.98

4 7.63

Which of the following predictions is supported by the data Jerry collected?

 A. The amount of daylight will increase the next month.

 B. The length of the nighttime will increase the next week.

 C. The weather in Jerry's town will be hotter the next month.

 D. The Sun will not rise until 8:00 A.M. the next week.

Drug resistant bacteria are bacteria that are killed, removed or controlled by antibiotics.

Examples of drug-resistant bacteria are;



Scientists are concerned about genetic mutation that causes drug resistance in bacteria because it leads to increase rate of infection and incurable diseases. There is still hope as sophisticated measures are being carried out to inhibit the horizontal gene transfer in these organisms and can serve as a novel therapeutic strategy to fight drug resistance.

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Explanation:

it is the Plato answer

Answer:

any of the distinct types of material of which animals or plants are made, consisting of specialized cells and their products

Answer:

nejfnekvntjgekf vjit od

Explanation:

riufif

Answer:

They are both animals and both are mammals. I think that is what you mean.

Explanation:

The energy yields represent the net ATP production associated with each specific metabolic reaction.

a. The energy yield in ATP associated with the conversion of NADH to NAD+ is approximately 2.5 ATP molecules.

b. The energy yield in ATP associated with the conversion of glucose to 2 pyruvate molecules through glycolysis is a net gain of 2 ATP molecules.

c. The energy yield in ATP associated with the conversion of 2 pyruvate molecules to 2 acetyl CoA molecules and 2 CO2 molecules in the citric acid cycle (also known as the Krebs cycle) is approximately 2 ATP molecules.

In summary, the conversion of NADH to NAD+ yields about 2.5 ATP molecules, the conversion of glucose to 2 pyruvate molecules through glycolysis yields 2 ATP molecules, and the conversion of Glycolysis 2 pyruvate molecules to 2 acetyl CoA molecules and 2 CO2 molecules in the citric acid cycle yields approximately 2 ATP molecules. two Pyruvate molecules. ATP (Adenosine Triphosphate) is created in two molecules. High-energy electron NADH (Nicotinamide Adenine Dinucleotide).

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Demonstrating that life required some kind of ingredient to begin. In other words, life does not just appear out of nowhere.

In order to determine whether sterile nutritive broth could spontaneously produce microbial life, Louis Pasteur developed a technique. He put up two experiments to do this. In each, Pasteur filled flasks with nutritious broth, shaped the flasks' necks into a S shape, and then heated the broth to destroy any germs that could have been there.

By demonstrating that sterile water in a closed flask kept sterile whereas sterile water in an open flask produced germs, Pasteur demonstrated that there were germs in the air. Pasteur published his germ theory in 1861. He argued that degradation was induced by airborne bacteria rather than the other way around.

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Answer:

A

Explanation:

Took the test