5. Explain why you think two thin blankets can sometimes be warmer than one thick blanket. [2 marks]​

Answer: A

they help them reproduce

The movement of Earth materials through the mantle and toward the crust due to heat transfer is an example of convection.

Convection is one of the methods of heat transfer where heat moves through a liquid medium.

According to this question, Earth materials move through the mantle towards the crust. This slow motion carries materials such as silicate etc from the interior to the exterior part of the Earth via convection currents.

Therefore, the movement of Earth materials through the mantle and toward the crust due to heat transfer is an example of convection.

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Answer:

A.convection

Explanation:

i got it right on study island

Answer:

nimbus

Explanation:

he called this cloud, 'Nimbus', the Latin word for rain. the vast majority of precipitation occurs from nimbo-form clouds and therefore these clouds have the greatest vertical height.

Yes, the law of reflection does hold for curved mirrors. The law of reflection states that the angle of incidence is equal to the angle of reflection.

This means that when a ray of light strikes a curved mirror, the angle of incidence is measured from the normal line, which is a line perpendicular to the surface of the mirror at the point of incidence.

The angle of reflection is also measured from this same normal line. However, in curved mirrors, the normal line is not constant and changes with each point on the surface of the mirror. This means that the angle of incidence and angle of reflection also change at each point on the surface of the mirror, but the law of reflection still holds true for each point.

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Answer:

B

Explanation:

A closed circulatory system means that the blood is carried through specialized pathways or tubes to other parts of the body. In the case of fish this is their veins and arteries.

The arrow that represents the release of carbon dioxide is arrow D. The process that is occurring at arrow D is cellular respiration. During cellular respiration, glucose is broken down into carbon dioxide, water, and energy in the form of ATP. The release of carbon dioxide occurs during the second stage of cellular respiration, called the Krebs cycle.

 Arrows A, B, and C represent reactions that demonstrate a conservation of mass and energy. Arrow A represents photosynthesis, where carbon dioxide and water are converted into glucose and oxygen. The mass of the reactants (carbon dioxide and water) is equal to the mass of the products (glucose and oxygen), demonstrating conservation of mass. The energy from the sun is converted into chemical energy in the form of glucose, demonstrating conservation of energy.

Arrows B and C represent the processes of glycolysis and the electron transport chain, respectively, which are part of cellular respiration. During glycolysis, glucose is broken down into two molecules of pyruvate, and during the electron transport chain, the energy stored in NADH and FADH2 is used to produce ATP. These reactions also demonstrate conservation of mass and energy, as the mass of the reactants is equal to the mass of the products, and the energy stored in glucose is converted into ATP.

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The half life of carbon -14 is 5730 years. The carbon -14 undergoes decays to form nitrogen -14. 1000 atoms of nitrogen is formed from 1000 atoms of carbon. Hence carbon -14 decayed from 2000 atoms to 1000. Therefore it is decayed by one half life and the age of the sample is about 5700 years or more accurately 5730 years.

Unstable radioactive  isotopes of atoms undergo spontaneous nuclear decay by the emission of charged particles such as alpha or beta. The time required to decay half of the initial amount of the isotope is called half life.

Carbon -14 undergo beta decay and the nuclear reaction is given as follows:

\(\rm _{6} ^{14}C \rightarrow _{7}^{14}N + _{-1}^{0}e\)

Thus, one carbon atom is converted one nitrogen atom. Hence, 1000 nitrogen atoms are formed from 1000 carbon atoms. The remaining number of carbon atoms in the rock sample is 1000. Thus, the initial amount was 2000.

The half life of carbon -14 is about 5700 years. Hence, it takes 5700 years to decay from 2000 to 1000 atoms. Therefore, option B is correct.

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Chamber 2 has more favorable conditions for crop growth compared to Chambers 1 and 3, as it has a higher growth rate.

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Answer: Cirrocumulus clouds

Explanation: Cirrocumulus clouds are usually seen in the winter and indicate fair, but cold weather. In tropical regions, they may indicate an approaching hurricane. Altostratus clouds are gray or blue-gray mid level clouds composed of ice crystals and water droplets.

Answer:

B. Callisto

Explanation:

The moon of Jupiter which is covered with craters is Callisto

Answer:

C. Artificial selection

Explanation:

This is artifical selection because it is "the identification by humans of desirable traits in plants and animals, and the steps taken to enhance and perpetuate those traits in future generations". Humans are unnaturally choosing which humans can survive! Hope this helps :D

Carriers are specific for the structures of individual molecules - Both
Molecules move against their concentration gradient - Active transport
Requires energy - Active transport
Molecules move down their concentration gradient - Facilitated diffusion
Molecules move through a protein carrier in the membrane - Both
Determine which statements apply to facilitated diffusion, active transport, or both.

1. Carriers are specific for the structures of individual molecules:
  - Your answer: Both (facilitated diffusion and active transport both involve carrier proteins that are specific for the molecules they transport)

2. Molecules move against their concentration gradient:
  - Your answer: Active transport (this process requires energy to move molecules against their concentration gradient)

3. Requires energy:
  - Your answer: Active transport (energy, often in the form of ATP, is needed to move molecules against their concentration gradient)

4. Molecules move down their concentration gradient:
  - Your answer: Facilitated diffusion (molecules move from a higher concentration to a lower concentration, without requiring energy)

5. Molecules move through a protein carrier in the membrane:
  - Your answer: Both (both facilitated diffusion and active transport involve the use of protein carriers in the membrane to move molecules)

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The nervous system influences the respiratory system by ; ( A ) It controls muscle contraction

The nervous system control certain activities involving the contraction of muscles in the respiratory system. some of the activities/reflexes ( muscle contraction activities ) performed in the respiratory system, that are made possible by the nervous system include; coughing and regulation of the amount of oxygen or Carbon dioxide in the Lungs. These process are controlled by the autonomic nervous system control.

Hence we can conclude that the nervous system influences the respiratory system by controlling muscle contraction.

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Answer:

D. It regulates heart rate.

Explanation:

Answer:

C

Explanation:

a species like this is typically called invasive, where they can harm the ecosystem from total domination of many layers of the food chain. because the lionfish eats so much, there will be loss food for other species to consume, causing some to die of starvation

Answer:

C

Explanation:

The basal ganglia, cerebellum, and hippocampus all have in common that they play a role in controlling movement and balance in the human body.What are the basal ganglia, cerebellum, and hippocampus?

The basal ganglia are a group of subcortical nuclei that are primarily responsible for controlling voluntary motor movements. They are located deep within the cerebral hemispheres of the brain.The cerebellum is located beneath the cerebrum and behind the brainstem. It is responsible for regulating motor movements, balance, and posture.The hippocampus is located in the medial temporal lobe of the brain. It plays an important role in memory formation and spatial navigation.In conclusion, the basal ganglia, cerebellum, and hippocampus all have in common that they play a role in controlling movement and balance in the human body.

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The basal ganglia, cerebellum, and hippocampus each have a unique purpose, yet they are all interrelated and collaborate to support distinct elements of learning, motor coordination, and control in the brain.

Thus, a collection of brain cells called the basal ganglia are found deep inside the brain. They are extremely important for the regulation of voluntary motions. They play a role in controlling undesirable motions and synchronizing motor processes.

The cerebellum is a part of the brain that is situated behind the brainstem. As a result, motions are exact and precise and balance, posture, and muscular coordination are all maintained. A seahorse-like brain region called the hippocampus is found in the temporal lobe. It contributes to the creation and maintenance of fresh memories and spatial awareness.

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Answer:

Its the Ocean.

Explanation:

This is the correct answer I hope this helps you out.

Oceans hold the least amount of carbon compared to glaciers, plants, and soil.  Therefore, option (A) is correct.

Carbon exists in the oceans mainly in the form of dissolved inorganic carbon (DIC) in the form of bicarbonate and carbonate ions. The oceans act as a carbon sink, absorbing around 25% of the carbon dioxide emitted by human activities. However, the amount of carbon stored in the oceans is relatively low compared to other carbon reservoirs such as glaciers, plants, and soil.

Glaciers are made up of compacted snow and ice and can hold large amounts of carbon. Glaciers are important for the carbon cycle as they can sequester carbon for hundreds of years. Plants also store large amounts of carbon in the form of organic matter through the process of photosynthesis. Soil also stores significant amounts of carbon in the form of organic matter.

Overall, while oceans do play a role in the carbon cycle, they hold the least amount of carbon compared to other reservoirs. The carbon cycle is a complex system that involves many reservoirs and processes, and understanding the dynamics of each of these components is crucial to our understanding of global climate change.

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Answer:

The elephant is getting Energy.

Explanation:

The elephant is getting Energy because sucrose is been hydrolysed and the bonds are broken down by enzyme sucrase isomaltase present in the intestine. Inches the bonds are broken, it is broken into glucose and fructose which is absorbed by the small intestine into the blood. The glucose serve as energy source or it is been stored as fly oven in the liver which is later broken down to glucose which is use for metabolic pathways to produce energy.

The elephant gets OXYGEN when the bond is broken in sucrose.

In conclusion, the elephant gets OXYGEN when the bond is broken in sucrose.

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Answer:

the heart pumps the blood thru thr body

Answer: all of the answers should be correct

Explanation:

- there is mostly oxygen in the atmosphere although there are many other types f gasses such as methane and carbon dioxide

- the water cycle requires the atmosphere as a part therefore recycling water

- the layer protects us from very harmful uv rays that can cause cancer to the skin

- the rest are self explanatory

Answer:

1 False. It is made mostly of Nitrogen

2 True  It does recycle water

3 True.  It does protect the earth from harmful radiation

4 True. It does reduce the temperature extremes between day and night

5 True. It recycles Carbon dioxide and oxygen

Explanation:

I had this on my quiz

For number 2: It is a part of recycling water, so if this is wrong then oof

WARNING: I haven't finished my quiz so ill let you know when im done/ and what the results are:)

The model of memory describes how information is recorded in our brain. It is composed of three primary memory units which are sensory, short-term, and long-term memory. The sensory memory unit is responsible for capturing sensory information like sights and sounds, which are processed by the brain within seconds.

However, if the information is significant, it will be transferred to the short-term memory unit.The short-term memory unit has a limited capacity and can only store information for a few seconds or minutes. It is responsible for holding information that is actively being processed and used by the brain. If the information is considered important, it will be transferred to the long-term memory unit.The long-term memory unit has an unlimited capacity and can store information for a lifetime. It is responsible for storing all types of information like skills, experiences, knowledge, and facts.

The transfer of information to long-term memory occurs through the process of encoding. The encoding process occurs when the brain assigns meaning and context to the information being stored. This can occur through repetition, rehearsal, elaboration, and association. Overall, the model of memory explains how information is captured by our senses, processed, and stored in the brain for future retrieval.

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Answer:

Light reactions harness energy from the sun to produce chemical bonds, ATP, and NADPH. These energy-carrying molecules are made in the stroma where carbon fixation takes place. The light-independent reactions of the Calvin cycle can be organized into three basic stages: fixation, reduction, and regeneration.

Answer:

It uses ATP and NADPH and converts it into glucose and other carbohydrates; glucose and other carbohydrates

Explanation:

EDGE 2020

Answer:

__Microevolution___ is evolution within a ___species____ , while __macroevolution_____ is the _change____ of one type of organism to another type of organism.

Explanation:

Hope it helps:)

Answer:

Microevolution is evolution within a species, while macroevolution is the change of one type of organism to another type of organism.

Answer:

D

Explanation:

Key points:

- Cells have a variety of mechanisms to prevent mutations, or permanent changes in DNA sequence.

- During DNA synthesis, most DNA polymerases "check their work," fixing the majority of mispaired bases in a process called proofreading.

- Immediately after DNA synthesis, any remaining mispaired bases can be detected and replaced in a process called mismatch repair.

- If DNA gets damaged, it can be repaired by various mechanisms, including chemical reversal, excision repair, and double-stranded break repair.

that's from khan academy^

Independent genes are inherited according to the law of independent assortment, while Linked genes are inherirted together. Linked genes: 1) 3:1. 2) No. 3) AB, ab. Independent genes: 1) 9:3:3:1 2) Yes. 3) AB, Ab, aB, ab.

Independent assortment is a law that states that the alleles from two or more different genes distribute independently from each other in gametes.

A gamete receives an allele from a gene that does not depend on nor influence the allele of another gene in the same gamete. This can only be applied to independent genes.

These genes segregate independently after crossing over because they are located far away from each other.

Some other genes, however, are too close to each other and do not segregate independently. These are the linked genes, and they do not exhibit an independent distribution, and they inherit together more frequently.  

In the exposed example,

We will assume these genes express complete dominance.

Linked genes

1)

Parentals) AaBb  x  AaBb

Gametes) AB ab      AB  ab

Punnett square)         AB     ab

                      AB    AABB  AaBb

                       ab    AaBb  aabb

F1) 1/4 AABB + 2/4 AaBb  : 1/4 aabb

2/4 of the progeny is exprected to express the dominant traits, while 1/4 is expected to express the recessive traits.

Phenotypic ratio ⇒ 3:1

2)

No, the law of independent assortment does not apply

3)

Since the parents of these individuals are both true breeding, the gametes are AB and ab.

Independent genes

1)

Parentals)        AaBb        x         AaBb

Gametes) AB Ab aB  ab        AB Ab aB  ab

Punnett square)         AB        Ab          aB        ab

                      AB    AABB     AABb    AaBB    AaBb

                      Ab    AABb     AAbb     AaBb    Aabb

                      aB    AaBB      AaBb     aaBB    aaBb

                      ab    AaBb       Aabb     aaBb    aabb  

F1)

9/16 individuals are expected to express the two dominant traits, A-B-

3/16 individuals are expected to express one of the dominant traits, A-bb

3/16 individuals are expeected to express the other dominant trait, aaB-

1/16 individuals are expected to express the recessive trait, aabb

Phenotypic ratio ⇒ 9:3:3:1

2)

Yes, the law of independent assortment does not apply

3)

Since the parents of these individuals are both true breeding, the gametes are AB, Ab, aB, and ab.

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Answer:

4.4 billion

Explanation:

hope this helps

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The following terms describe both the water and the clover that the groundhogs consume are:

The 2 main aspects affecting denizens growth are the birth rate and death rate .

People development may also be impacted by people coming into the population from someplace else or leaving the residents for another region.

Thus, option "B" and "C" is correct,  Abiotic factor and Biotic factors.

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