epinephrine
norepinephrine
outer brain covering
middle brain covering
cerebrum
[Choose ]
[Choose ]
arachnoid mater
neurotransmitter
dura mater
one of the four major parts of the brain
[Choose ]
[Choose ]
[Choose ]

Answer: What they both have in common is that they both contain an electron gun.

Explanation:

Answer:

1.) its D ..

2.) its Meter.

The International Whaling has proposed a negative kill limit for bluefin tuna as well as a countrywide ban on commercial whaling.

Why do humans value blue whales?

Although blue whales have a huge food requirement, the ocean environment benefits from them rather than is burdened by them. Their iron-rich excrement is a crucial supply of nutrients for the marine food web, boosting production in the Southern Ocean and increasing fisheries yields.

How do whales protect the environment?

The "whale pump"—the way whales graze, poop, migratory, then dive between the ocean's top and depths—moves vital nutrients around the ocean. Thus, robust water bodies and the development of cyanobacteria are supported, which in turn helps lock in a significant quantity of carbon.

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Answer:

The comb jelly (Mnemiopsis leidyi) became invasive in the Black Sea in the early 1980s, likely due to its introduction via ballast water from ships from the east coast of the United States. Its rapid spread and high reproductive rate allowed it to become the dominant species in the Black Sea, out-competing native species for food and resources. It has since spread to other parts of the world, including the Mediterranean Sea and the Caspian Sea.

Explanation:

Option b is Correct. Contrary to popular belief, an organism with IsCAP+P+O+Z+Y+A+/F'I+ will not have a healthy Lac operon.

The lac operon exhibits leaky expression, which ensures that even after the removal of lactose, a little amount of eiwit is still produced. When the requirements are violated, it is crucial to get the lactose metabolism going so that lactose cannot be broken down in the cel without permease.

When lactose is present, it binds to the repressor. Thus, the DNA is released by the repressor, allowing the operator to enter freely. RNA polymerase can now be sent via the operator to view the structural elements. Ribosomes are able to synthesize the essential enzymes in this place.

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When food components and gastric enzymes combine in the stomach, cholesterol absorption starts. The stomach controls how much gastric acid, together with bile and pancreatic juice, is sent to the duodenum.

Where does digestional absorption take place?

The majority of the nutrients in your meal are absorbed in your small intestine before being transported by your circulatory system to other areas of your body for storage or use. A special type of cell helps nutrients pass through the gut lining and into the circulation.

How do fats or oils go from the gastrointestinal tract to the heart?

The fats are absorbed by the intestinal cells. Chylomicrons are enormous lipoprotein structures made of long-chain fatty acids that carry lipids through the lymphatic system. Intestinal cells produce chylomicrons.

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Answer: ITS B

Explanation:

B

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a)  Plastic Is an insulator

b) Temperature is the Kinetic energy

c)  The temperature in kelvin is 310°K

d) The greatest heat is heating 1000 g of water from 10°C to 12°C

e)  The heat capacity is 0.5 cal/g·°C

f) The temperature rises.

g) The heat needed is  54,000 cal

We know that an insulator has to do with the kind of substance that would not allow heat or current to pass through it. We know that insulators are the opposite of the conductors .

Temperature has to do measure of the average kinetic energy of the molecules of a body. We know that as the temperature increases, the kinetic energy of the molecules increases.

We know that;

H = mcdT

m = mass of the water

c = specific heat capacity of the water

dT = temperature change

100 = 10 * c * 20

c = 100/200

c = 0.5 cal/g·°C

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Answer:

ANSWER: Chimpanzees

Explanation:

The chimpanzee is the creature with which humans have the most recent common ancestor within that clade.

Answer: Technically the answer isnt wrong but its bonobos and chimpanzees

Explanation:

Answer:

Wolf

Dog

|

V

Cat

Explanation:

A phylogenetic tree is a diagram that shows the evolutionary relationships between different organisms. The tree is constructed using a method called cladistics, which looks at shared characteristics among different organisms.

Based on the information you provided, the tree would show that dogs and wolves are more closely related to each other than either is to cats. This would be represented by a branching pattern, with dogs and wolves being on one branch and cats on another branch, with the branch containing dogs and wolves being closer to the trunk of the tree.

It's important to note that this is a simplification and in reality the relationships between species are more complex, with many branches and sub-branches.

The factor for cells switching from cellular respiration to fermentation is a) the final electron receptor in the TEC is not available.

The reason certain cells switch from respiration to fermentation is due to their oxygen supply and oxygen demand. If the oxygen demand of the cells is much higher than the oxygen supply, the cells can no longer sustain aerobic respiration. In this case, the cells switch from respiration to fermentation. Like combustion, cellular respiration completely oxidizes glucose to CO2 and water. Fermentation, on the other hand, does not completely oxidize glucose. Instead, small, reduced organic molecules are produced as a waste product. As a result, cellular respiration releases more energy from glucose than from fermentation.

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The protein that inhibits transcription of the lac operon is a tetramer with four identical subunits called lac repressor.

The lactose operon (lac operon) is a lactose transport and metabolism operon found in E. coli and many other intestinal bacteria. Although glucose is the preferred carbon source for most bacteria, the lac operon allows for successful lactose digestion when glucose is unavailable via beta-galactosidase activity. Because gene regulation of the lac operon was the first fully characterized genetic regulatory system, it has become a leading example of prokaryotic gene regulation.

For this reason, it is frequently covered in beginning molecular and cellular biology lectures. François Jacob and Jacques Monod used this lactose metabolism system to figure out how a biological cell knew which enzyme to manufacture. Their work on the lac operon was recognized.

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Hypertonic cells contain more water than their surroundings. A cell is hypotonic if it contains less water than its surroundings. If the cell has the same amount of water, it will be isotonic.

If the cell has more water than its surroundings, it is hypertonic (think of hyper as having a lot of sugar). The cell will desire to release water. The cell may shrivel or shrink as a result of this. If a cell has less water than its surroundings, it is hypotonic (think hippos). They enjoy eating. The cell will absorb water, which may cause it to enlarge, swell, or even explode. If the cell has the same amount of water/proportion of water to other components, nothing will happen and the cell will be isotonic. (Think solitary, without any interactions with other objects.)

Here,

Hypertonic cells have a higher water content than their surroundings. If a cell has less water than its surrounds, it is hypotonic. Isotonic means that the cell has the same quantity of water.

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1. Light waves are electric and magnetic. The correct option is C.

2. The option that does "not" require a physical medium through which to travel is light. The correct option is A.

3. Waves with frequencies slightly lower than those of visible light

are called infrared rays. The correct option is D.

4. The option which indicates that light is made up of particles rather than waves is photoelectric effect. The correct option is C.

5. An object is luminous if it can produce fluorescent light, incandescent light, and neon light. The correct option is D.

6. Light produced from heat is said to be incandescent. The correct option is B.

7. Light produced by electron bombardment of low-pressure gases is fluorescent. The corect optrion is D.

Waves of the electromagnetic field make up electromagnetic radiation; they travel through space while carrying momentum and radiant energy. It consists of X-rays, gamma rays, microwaves, infrared, light, and radio waves.

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The report mentioned ways that people’s lives may change because of climate change, such as rising sea levels, reduced crop efficiency, and heat waves. This information may encourage the public to change the way they use energy, for example how they heat their homes or power their cars is a true statement.

This is referred to as the long-term shifts in temperatures and weather patterns due to different factors.

It could lead to rising sea levels, reduced crop efficiency, and heat waves and the use of energy should be adequately monitored so as to prevent it from becoming worse in today's world.

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The full question:

The report mentioned ways that people’s lives may change because of climate change, such as rising sea levels, reduced crop efficiency, and heat waves. This information may encourage the public to change the way they use energy, for example how they heat their homes or power their cars. true/false

Due to biomagnification Tertiary consumer will likely contain the most DDT. Correct option (d).

Biomagnification is any concentration of a toxin, such as pesticides, in the tissues of tolerant species at increasingly higher levels in a food chain.  This rise might be caused by:

Biological magnification refers to the process by which certain substances, such as pesticides or heavy metals, make their way into lakes, rivers, and the ocean, and then move up the food chain in progressively higher concentrations as they are incorporated into the diet of aquatic organisms such as zooplankton, which are then eaten by fish, who are then eaten by larger fish, large birds, animals, or humans.

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The correct answer is c. The rate of photosynthesis decreases drastically.

Photosynthesis is the process by which plants, algae, and some bacteria convert light energy into chemical energy in the form of glucose or other sugars. Chlorophyll, the pigment responsible for absorbing light during photosynthesis, absorbs light most efficiently in the blue and red regions of the spectrum, with a peak absorption in the red.

While red light is absorbed by chlorophyll, it is not the most efficient wavelength for photosynthesis. Therefore, if a plant were to be exposed to only red light, the rate of photosynthesis would decrease drastically compared to if the plant were exposed to a full spectrum of light, including blue light.

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All of the following—aside from most species' lack of color vision—reflect the primate emphasis on the visual sense.

Their frontal face has eyes that are shielded by bony eye sockets. "Binocular vision" is the term for the resulting overlapping visual fields. Primates can estimate relative distance and motion of an item using this sort of vision, which gives them a wider range of depth perception.

One or more of the following characteristics set primates apart from other mammals: Short nose, poor sense of smell, prehensile five-digit hands and feet with flat nails instead of claws, unspecialized structure, unspecialized behavior, prehensile five-digit hands and feet,

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The correct option is B ; concept definition - demonstration - development - production.

Research and development is mainly concerned with the development of a new concept, incorporation into a product, and delivery of product to the market as a way to improve the bottom line of the company.

It allows companies maintain a competitive edge over others in the same industry by bring new and innovative products to the customer.

The stages of R&D include: concept definition - demonstration - development - production.

The innovative idea is first defined and feasibility is evaluated.

The concept is demonstrated to show practicability of the idea.

The concept is further developed to suit customer needs.

Finally production and marketing is done to make product available to the customer.

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Full Question;

Project planning teams use project life cycle models because various types of projects have differing demands. Which of the following sequences of stages is most appropriate for a life cycle model for research and development (R & D) projects?

a. define - measure - analyze - improve - control.

b. concept definition - demonstration - development - production.

c. pre-planning - design - procurement - construction - start up.

d. concept - requirements - design - code - test - turnove.

The conclusion that can be reached is that Historians understand the language of written records more clearly and have discovered that the symptoms match typhoid.

So, option A is correct.

Typhoid fever is described as a life-threatening infection caused by the bacterium Salmonella Typhi and is usually spread through contaminated food or water.

The Black Death also known as the Pestilence the Great Mortality that happened from 1346 to 1353. The plague is an infectious disease caused by a bacillus bacteria which is carried and spread by parasitic fleas on rodents, notably the brown rat.

There are three types of plague, and all three were likely present in the Black Death pandemic Bubonic plague Pneumonic plague and Septicemic plague.

Symptoms for typhoid fever include high fever, headache, stomach pain and either constipation or diarrhea.

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Answer:

The answer is C. lymph nodes

Explanation:

The five possible reasons for S.K.'s symptoms are :

After a protracted stay at high altitude, cardiac output during exercise is reduced. These alterations in cardiac output diminish maximum oxygen absorption at high altitude, which remains low long after arterial oxygen content normalises.

Hypoxia is defined as low oxygen levels in your bodily tissues. It produces symptoms such as disorientation, agitation, trouble breathing, a high heart rate, and blue skin.

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Reasons for such condition can be The drop in temperature could be the cause. The patient, a roofer, has symptoms as a result of his living condition and his occupation. He might have a congenital cardiac disorder, which would explain it.

Exercise-induced reduction in cardiac output occurs after an extended stay at a high altitude. Maximum oxygen absorption at high altitude is reduced by these changes in cardiac output, and it stays low even after arterial oxygen content returns to baseline. Low oxygen levels in your body tissues are known as hypoxia. It causes symptoms like confusion, anxiety, difficulty breathing, an elevated heart rate, and bluish skin. The colder temperatures could be to blame. The patient, a roofer, has symptoms as a result of his living condition and his occupation.

He could have a congenital heart defect, which might clarify it.

He might not have enough oxygen in his lungs, in such case.

He could be developing a completely new illness.

His open reduction and internal fixation surgery could be to blame.

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Freeze-thaw occurs when water continually seeps, freezes and expands, it eventually breaks the rock particles apart. Exfoliation is the process which occurs as this  develop parallel to the land surface as a consequence of the reduction in the pressure during uplift and erosion.

Freeze thaw weathering occurs when the water seeps which are present in the rocks or the pores between soil particles and freezes. The expansion of the water molecule creates high pressures, which can widen the force which is present apart the soil particles.

Abrasions generally heals on their own. However, the abrasions which extend into the dermis layer may result into scarring of the tissues upon healing. The most common mechanism of formation of abrasion is due to the friction which is against the epidermis.

Depositional landforms include the glacial eskers, and kames. Drumlins  are also the landforms which are left behind by retreating glaciers. Many of the depositional landforms result from sediment deposited or reshaped by the melting water and are referred to as glacial landforms.

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saltwater intrusion occurs when in all the cases,  when saltwater is added to wells. saltwater is added to lakes and ponds. saltwater is pushed upstream by encroaching storms. groundwater pumped from wells along the coastline causes saline groundwater to move inland.

The migration of saltwater into freshwater aquifers is known as saltwater intrusion, and it can have negative effects on groundwater quality, especially drinking water supplies. Aquifers at coastlines may naturally experience saltwater intrusion due to the hydraulic connection between groundwater and seawater. Saline water is denser and has a higher water pressure than freshwater because it contains more minerals. Because of this, freshwater can push saltwater inland.

Fresh water is less readily available when saltwater intrusion occurs. Two scenarios can result in saltwater intrusion: due to overpumping from the wells, there is a lateral intrusion of sea water. Greater salinity migration as a result of upconing close to coastal wells.

Many coastal locations have experienced an increase in saltwater intrusion as a result of certain human activities, particularly groundwater pumping from coastal freshwater wells. Water extraction causes fresh groundwater to sink, which lowers its water pressure and permits saltwater to move farther inland. Navigation canals, agricultural drainage systems, and other channels that allow seawater to travel inland are other causes of saltwater intrusion. Climate change-related sea level rise also adds to saltwater intrusion.

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Filling a well with salt water will cause saltwater intrusion in all cases. Salt water is added to lakes and ponds. An approaching storm pushes salt water upstream. Groundwater pumped from coastal wells causes saline groundwater to flow inland.

The migration of saltwater into freshwater aquifers, known as saltwater intrusion, can adversely affect groundwater quality, especially drinking water supply. Coastal aquifers can naturally intrude into saltwater due to the hydraulic relationship between groundwater and seawater. Salt water contains more minerals, which makes it denser and more pressurized than fresh water. This allows fresh water to push salt water inland.

When saltwater intrudes, freshwater is quickly unavailable. There are two scenarios that lead to saltwater intrusion.

Seawater intrudes from the sides due to overpumping from the well. Increased salinity transfer as a result of upconing near coastal wells.

In many coastal areas, saltwater intrusion is increasing as a result of certain human activities, particularly groundwater pumping from coastal freshwater wells. Fresh groundwater subsides as a result of water extraction, reducing water pressure and allowing saltwater to seep further inland. Another source of intrusion. Sea level rise due to climate change also contributes to salt water intrusion.

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The copper metal is heated in the air. The magnesium ribbon emits a brilliant light with magnesium oxide, which is white. When oxygen gas is passed over copper in the presence of heat, an oxidation reaction occurs which results in the formation of black copper oxide. The greater change in mass observed when they start to burned.

Copper is a mineral and also an element which is essential to our daily lives. Copper is a significant industrial metal due to its high ductility, malleability, thermal and electrical conductivity, and corrosion resistance. Copper is a necessary nutrient in our diet.

Metals are a class of materials which have high light reflection. Copper (Cu), Aluminium (Al), and other metals are the examples.

The combustion of magnesium ribbon is a combined reaction. It is due to the fact that magnesium metal reacts with the oxygen to form the single product magnesium oxide. When magnesium ribbon is burned in the air, it reacts with the oxygen present in the air to form magnesium oxide.

Thus, 3g of clean magnesium ribbon and 8g of clean copper metal were burnt separately in equal volume of air and both mass reacted completely with air and the greater change in mass observed when they start to burned.

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Answer:

see below

Explanation:

A-Chonaocytes- These are found in the inner side of sponges , they have a flagellum they help in creating water current which helps the food to come inside along with water.

H-Archaeocytes:- They help in reproduction.

J- Osculum - Helps in excretion or expelling water out of sponge,

G-Ostia:- These are the openings through which water enters into the body of sponge.

The D-Osculum aids in excretion by being the orifice via which water exits the sponge after passing through the spongocoels.

B-Pinacocyte: These cells are flattened and present in a single layer on the surface of the body. They also line the canals. aid in the contraction of the sponge as well as the attachment of the sponge to the substrate.

Flattened cells called C-Porocytes are present on the sponge's outer surface, and they allow water to enter the sponge's body.

E-Amoebocyte: These amoeboid cells may carry out a variety of tasks, including digestion, reproduction, and regeneration.

F-Spices: These are structural components that support the structure of sponges.

Answer:

the last option

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