Explain in your own words why there is uncertainty in science. What can scientists do to reduce uncertainty in science?

Explanation:

1)steady-state theory, in cosmology, a view that the universe is always expanding but maintaining a constant average density.so the answer is B

2)Hubble's law, also known as the Hubble–Lemaître law or Lemaître's law, is the observation in physical cosmology that galaxies are moving away from Earth at speeds proportional to their distance.so the answer is A

3)B

Answer:

True

Explanation:

The substances in the blood are reabsorbed due to its usage in our body whereas the filtrate are secreted due to its harmful nature.

The filtrate absorbed in the glomerulus and flows through the renal tubule, where nutrients and water are reabsorbed into capillaries that are used by the body in different processes. During this process, the waste and hydrogen ions pass from the capillaries into the renal tubule which is called secretion. Kidney is the organ where the absorption of nutrients and removal of waste from the blood occur.

So we can conclude that substances in the blood are reabsorbed due to its usage in our body whereas the filtrate are secreted due to its harmful nature.

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Lipids are organic compound that are insoluble in water.

Lipids are derive from and give eg of lipids?

Lipids are derivative of fatty acids the example of lipids are oils, wax and steroids.

Role of lipids are:

1)They fuctions as store house of energy.

2) They are important signalling molecules

3) They serve as structural components of cell membranes.

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Phospholipids are essential structural components of brain and nervous tissue, of membranes throughout body tissues, and of lipoproteins—the runners of cholesterol and fats in the blood.

Within the body, lipids serve as an energy reserve, control hormones, transmit nerve impulses, cushion vital organs, and transport fat-soluble nutrients. Fat in food serves as an power source with high caloric thickness, adds texture and taste, and donates to satiety.

The Roles of Lipids in the Body

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Answer:

b.

b.Flying dragons live exclusively in trees except to lay eggs.

Answer:

439 green peas and 166 yellow peas for your answer

Answer:

C) Physical characteristics.

Answer:

Salivary gland in humans ;

1) Sublingual glands

2) Submandibular glands

3) Parotid glands

Answer:

One salivary gland in humans is Parotid glands.

Hope its helpful :-)

The correct answer from the listed options is that the nervous system and the muscle system respond to stimuli to produce motion (option A).

Nervous system is the organ system that coordinates the activities of muscles, monitors organs, constructs and processes data received from the senses and initiates actions.

On the other hand, the muscle is a contractile form of tissue which animals use to effect movement.

The nervous system controls the muscle, hence, it controls movement of limbs in higher organisms.

Therefore, the correct answer from the listed options is that the nervous system and the muscle system respond to stimuli to produce motion.

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Answer:

Explanation:skeletal

                     Spinal

C

Weathering and erosion break down rocks back into sediment. heat and pressure makes metamorphic rocks

Answer:

A mass of cells that have lost all restraint in division and are piled on top of one another is called a Tumor.

The economy will then start to shrink as it descends from the peak and enters recession.

The economy's growth rate declined during the depression phase. Up until the demand and supply for products and services, as well as the prices of the factors, reach their lowest point, there is still a further decrease. Eventually, the economy sinks to its lowest point. The economy enters the peak phase when it reaches its highest level of output, which marks the end of growth. After this, a contractionary phase occurs as employment levels and housing starts start to drop.

The time between an economic activity's peak and its subsequent trough, or lowest point, is known as a recession. The economic cycle between its trough and peak is one of expansion.

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AaBbCcddEe × AabbCcDdEe

AA ---> 1/4

Aa ---> 1/2

aa ---> 1/4

Bb ---> 1/2

bb ---> 1/2

CC ---> 1/4

Cc ---> 1/2

cc ---> 1/4

Dd ---> 1/2

dd ---> 1/2

EE ---> 1/4

Ee ---> 1/2

ee ---> 1/4

For example

AABbCCDdEe = 1/4.1/2.1/4.1/2.1/2 = 1/128

The proportions of each genotype among the progeny of this cross are approximately as follows:

Punnett square analysis is needed to identify the genotype distribution among the progeny of the cross between AaBbCcddEe and AabbCcDdEe. This will make it easier for us to see the possible allele combinations of both the parents and their respective frequencies in the offspring.

The alleles for each basic genotype will be listed initially:

Parent 1 (AaBbCcddEe):

Parent 2 (AabbCcDdEe):

When we construct Punnett square, we get:

 | Aa   | Aa   |

 | Bb   | bb   |

 | Cc   | Cc   |

 | dd   | Dd   |

 | Ee   | Ee   |

------------------

Aa| AaAa | AaAa |

 | Aabb | Aabb |

------------------

Bb| AaBb | AaBb |

 | Aabb | Aabb |

------------------

Cc| AaCc | AaCc |

 | Aabb | Aabb |

------------------

dd| Add  | Add  |

 | add  | add  |

------------------

Ee| AEE  | AEe  |

 | aEE  | aEe  |

------------------

The number of each genotype in the offspring:

AaAa: 4 (AaBbCcddEe)

Aabb: 4 (AaBbCcDdEe)

AaBb: 8 (AaBbCcddEe, AaBbCcDdEe)

AaCc: 4 (AaBbCcddEe, AaBbCcDdEe)

Add: 2 (AaBbccddEe)

AaDd: 4 (AaBbccDdEe)

AEe: 2 (AaBbCcddEE, AaBbCcDdEE)

AaEe: 4 (AaBbCcddEe, AaBbCcDdEe)

aEE: 2 (aabbCcddEE, aabbCcDdEE)

aaEe: 4 (aabbCcddEe, aabbCcDdEe)

Now, we find the proportion of each genotype:

Proportion of AaAa: 4 / 30 = 2/15 ≈ 0.1333 or 13.33%

Proportion of Aabb: 4 / 30 = 2/15 ≈ 0.1333 or 13.33%

Proportion of AaBb: 8 / 30 = 4/15 ≈ 0.2667 or 26.67%

Proportion of AaCc: 4 / 30 = 2/15 ≈ 0.1333 or 13.33%

Proportion of Add: 2 / 30 = 1/15 ≈ 0.0667 or 6.67%

Proportion of AaDd: 4 / 30 = 2/15 ≈ 0.1333 or 13.33%

Proportion of AEe: 2 / 30 = 1/15 ≈ 0.0667 or 6.67%

Proportion of AaEe: 4 / 30 = 2/15 ≈ 0.1333 or 13.33%

Proportion of aEE: 2 / 30 = 1/15 ≈ 0.0667 or 6.67%

Proportion of aaEe: 4 / 30 = 2/15 ≈ 0.1333 or 13.33%

Therefore, the proportions of each genotype among the progeny of this cross are approximately as follows:

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Answer:

examples : when we buy,use and dispose of products from suppliers.

Answer:

Brooke would likely be diagnosed with major depressive disorder because she's telling herself she has no energy showing lack of interest in what's planned and in other words 'lazy'

She might be suffering from major depressive disorder. As she is lacking the energy to do her work and it could be because of the drained energy in her mind.

In this situation a person is either living alone or going through some difficult situations and unable to cope through the situations.

In the cases of excess depression the person is struggling through the mental thoughts and are not able to do their work properly. People like these are usually absent minded and they usually are lacking interest in the crowd.

In such situation the person should go to the family gatherings and the outings, learn to go out of their comfort zone. In such situations people like these situations should talk about their feelings out and try to find the conclusion with a wise situation.

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Physical differences in beaks of birds would develop as a result of different environmental changes.

This is described as the process in which heritable characteristics are changed in species over successive generations. This occurs as a result of natural selection in which the traits suitable for survival are passed to the offspring.

This is usually as a result of a change in the environmental factors which ensures that the organisms are able to adapt so as not to die out and go extinct in this type of scenario.

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Improving our technology lead to new discoveries about Mars because the new technology helps us to find more information about the environment of the Mars planet.

Scientists use Terrain-Relative Navigation which is a device due to which the Perseverance rover can estimate its location while moving through the atmosphere of Mars on its parachute. Improvement in our technology lead to new findings about Mars. The new technology helps us to collect more data about the Mars planet.

So we can conclude that Improving our technology lead to new discoveries about Mars because the new technology helps us to find more information about the environment of the Mars planet.

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Answer:

1.  Viking 1 and Viking 2 probes transmitted panoramic views of the red and rocky soils back to Earth after six years later. The Pathfinder probe sent back large amounts of data of the environment especially about climatic variations in only three months. You can tell the technology was very different between these two because of how long it took for each probe to gather data.  

2. In 1965, Mariner 4 and 9 probes found geological formations (Olympus Mans). The Mariner 4 sent back the first image of Mars. The Mariner 9 found erosion marks that indicated that there was once water on Mars. In 1976, the Viking 1 and 2 probes transmitted panoramic views of the soils. From 1965 to 1976, they were able to discover more about Mars over improving the technology. When the Viking probes were launched, we discovered more than when the Mariner probes were launched. For example, we were able to uncover how red and rocky the soils were.

3. We now receive information differently thanks to wireless technology. For instance, we now have computers and phones that let us contact someone by simply pressing a button. GPS may now be used to display various places. Additionally, we can now forecast the weather. We can know the weather for every day because forecasters have access to a ton of technology. Thus, we now substitute archaic methods for digital ones.

4. Fire alarm and air conditioning systems include technologies that incorporate various communication systems that enable them to react to changes in the atmosphere or temperature. Therefore, when the atmosphere's temperature fluctuates, they are utilized.

5. Viking 1 and 2 were used to find life on Mars. Since they launched the Mainer probes, they found that there was once water on Mars which later created the Viking 1 and 2 probes for further investigation. Along with finding life on Mars, they were also created to take better photos of the planet.  

Explanation:

The ever and ever increasing demand for wood fuel, gas, timber, building materials, and many other consumer products are exerting more and more pressure on the earth’s natural resources, living organisms, and natural cycles responsible for maintaining a balance on earth.

Natural resources such as the water systems, fertile soil, clean air, vegetation cover, wildlife, indigenous plant species, and natural cycles such as the oxygen and nitrogen cycles, and food chains need trees for their continuity and balance.

Explanation:

afforestation makes the earth a better place by reducing the carbon footprint or carbon dioxide in the atmosphere

As the Sustainable Development Goals (SDGs) were being approved in late 2015, my colleagues here at ODI delivered the Projecting Progress scorecard.

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Answer:

melting

Explanation:

because the water has got its freezing ponit

Answer: A: precipitation

Explanation: it is raining took the test this is the right answer

It is a false statement that listening and hearing are essentially the same as both involve receiving aural and visual stimuli.

The term stimuli is used to describe any information that is received from the external environment. This information that has been received from the external environment must be interpreted by the nervous system of the individual. The interaction of an organism with it's environment tends to occur by the instrumentality of the sense organs present in the organism.

The term aural stimulus has to do with a sensation that is received by the ears while the term visual stimulus deals with the kind of sensation that is received with the ears.

Hence, it is a false statement that listening and hearing are essentially the same as both involve receiving aural and visual stimuli.

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Answer:

The organ is the female reproductive organ , the uterus

and the green arrow points to the cervix

In complete dominance, the dominant alleles hide the expression of the recessive allele. Option C. All of the offspring will exhibit the

dominant trait.

Complete dominance occurs when one of the alleles -the dominant one- completely hides the expression of the other allele -the recessive one- in heterozygous individuals.

Cross: BB   x   Bb

Gametes: B   B     B   b

F1)

50% of the progeny will be homozygous  BB

50% of the progeny will be heterozygous Bb

100% of the progeny will express the dominant trait.    

The correct option is C. All of the offspring will exhibit the dominant trait.

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The selective pressures operating in the late miocene, pliocene, and pleistocene that favored the adaptive radiation of monkeys and contributed to decreased diversity among apes are :-

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Answer:

A mutation

What can cause changes in a DNA sequence?

A mutation is a change in the DNA sequence. There are several different methods by which mutation happens. Of course, chemically produced mutations receive the most media attention. There are a wide range of substances that can cause mutations, usually by attaching to the DNA and causing it to break, requiring an incomplete repair, or by preventing DNA replication, forcing the replication machinery to repeat the DNA poorly.

However, other factors, such as exposure to radiation or light, can also cause DNA mutations. In reality, UV and X ray light are known to cause mutations by changing the DNA's base composition or causing DNA breaks.

Mutations are also spontaneously caused by DNA replication. Although it occurs extremely infrequently, the replication complex does occasionally make mistakes and insert the incorrect DNA base, which leads to a significant amount of mutations over the course of generations.

Thank you,

Eddie

A mutation in the DNA sequence can be beneficial, harmful, or neither, depending on its impact on the organism.

Mutations—changes in the DNA sequence—can affect an organism. Mutations that improve survival and reproduction are helpful. Mutations can make an organism disease-resistant or adaptable.

Mutations can affect the organism's health or fitness. Mutations can cause genetic diseases, diminished fertility, and lower survival rates. Neutral mutations don't affect the organism's phenotypic or fitness. They may occur in non-coding DNA or silently modify the genetic code, leaving the amino acid sequence of a protein untouched.

Mutations' effects depend on their genomic location, gene function, and environment. Some mutations help evolution and adaptability, whereas others harm individuals or populations.

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Answer:

Gravity causes them to slide downwards

gravity causes

1. everything to be pulled to the center

2. earth's tectonic plates to move

3. one plate to go under another plate

4. the plate that went under to go into the mantle

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