Which of the following is linked to an increase in brain size and intelligence in hominids?

options:

Increased social interactions

Development of more complex and tools and language

Decreased use of tools and language

Increased speed and strength

1.  The heat from radioactive action within the interior of the planet causes the plates to move, sometimes toward and sometimes away from each other.

2. Earth's surface activates with respect to tectonic theory, moving as much as 1-2 inches a year. The many tectonic plates shift and interact with each other. This motion transform the Earth's outer layer. Hence the movement may causes Earthquakes, volcanoes and mountains .

3.Plate motions cause mountains to rise where plates are push together, or converge, and continents to fracture and oceans to form where plates pull apart, or diverge. Hence it results in formation of mountain, ocean and continents .

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Question #3 - Food Web

Question #4 - Mutalism

Hope this helps :)

Answer:

The answer is number 4

Explanation:

Cross section 4 contains evidence that a transition from a hexagonal shellfish to a more a rectangular shellfish and then to a circular shellfish may have occurred. These changes would have been gradual, as shown by the position of the fossils in each layer of the canyon.

Although the evidence provided by cross section 4 is strong, more research would be needed to prove a connection among the shellfish in the canyon, such as morphological or

The cross-section in diagram 4 could be used as evidence that, over time, a circular shellfish descended from a hexagonal shellfish. Hence, option D is correct.

Fossils are the remains or traces of ancient living organisms that have been preserved in sedimentary rocks or other materials over long periods of time. Fossils can include bones, teeth, shells, imprints, or other parts of plants and animals that have been mineralized, or turned into rock, over millions of years.

They are important clues to the history of life on Earth, providing evidence of the evolution of different species and the environmental conditions that existed in the past.

Fossils can be studied by paleontologists to learn more about the biology and ecology of ancient organisms, as well as to understand how the Earth's ecosystems have changed over time. Hence, option D is correct.

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Answer: I think that it would be C but I'm not completely positive :) either way, I hope this can help out on whatever you're working on

Answer:

Explanation:

Complementary base pairing is important because the hydrogen bonds between the bases hold the two strands of DNA together and because it serves as a way for DNA to replicate.

The  correct options are (a) .Melting by Decompression is occurring at or near the Mid-Atlantic Ridge. This is due to the upwelling of mantle material at the ridge, which reduces the pressure on the mantle rocks and causes them to partially melt. Melting by Heating is also occurring, as the mantle rocks are heated by the high temperatures associated with the upwelling mantle.

Melting is occurring at or near the Mid-Atlantic Ridge, and the dominant melting process is Melting by Decompression.

The Mid-Atlantic Ridge is a divergent plate boundary, where two tectonic plates are moving away from each other, and magma from the mantle rises up to fill the gap. As the magma rises, it experiences decreasing pressure due to the decreasing overlying rock pressure, which causes the magma to melt.

Melting by Decompression is the dominant process at the Mid-Atlantic Ridge because it is caused by the reduction of pressure on the mantle, as it rises to shallower depths. The melting is not due to an increase in temperature, but rather due to a decrease in pressure, which causes the rock to melt.

Melting by Adding Water is not occurring at the Mid-Atlantic Ridge because there is no subduction zone nearby where water can be introduced into the mantle. Melting by burial and/or addition of water (not due to subduction, but due to burial) is also not occurring because the mantle is not being buried, but rather is being exposed due to the plate boundary's divergent motion.

Melting by Heating is also not the dominant melting process at the Mid-Atlantic Ridge because the mantle is not being heated from above. The heat comes from the mantle itself, and the melting is caused by the decompression of the mantle due to plate divergence.

Therefore, the correct answer is (a) Melting by Decompression is occurring at or near the Mid-Atlantic Ridge.

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Answer:

Explanation:  

Controlled variable: Variables that are controlled and have no influence on the results of the experiment. These variables do not affect the change in the dependent variable values.  

These variables must be the same for all the subjects or groups (control and experimental). In the case of plants, controlled variables are probably those needed by the plants to correct development.  

All plants should be exposed to the same period of light-time and the same temperature. Also, the substrate or soil where the plants are growing should be the same.

Answer: Yield

Explanation: Yielding is an important traffic rule that promotes safety and smooth flow of traffic.  It is an important practice that helps maintain order on the roads and promotes safety for all road users. It's essential to be attentive, follow traffic signs and signals, and be aware of the right of way rules in your area to ensure a safe driving experience.

When you yield, you give the right of way to another driver or pedestrian. This means that you let them go first, even if it might inconvenience you or require you to slow down or stop.

Yielding is typically required in situations such as:

Yielding to pedestrians: When you approach a crosswalk or intersection where pedestrians are waiting to cross, you should yield to them and allow them to safely cross the road before you continue to drive.  Drivers must yield to pedestrians within a crosswalk.  

Yielding at intersections: When you approach an intersection where there are other vehicles, you should yield to those already in the intersection or approaching from the right. This helps prevent accidents and ensures a smooth flow of traffic.

Yielding when merging: When merging onto a highway or another lane, you should yield to the vehicles already in that lane. This allows for a safe and efficient merging process.

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The statement "angiosperms have archegonia but lack antheridia" is false.

Angiosperms, or flowering plants, do not possess archegonia or antheridia. Archegonia and antheridia are structures found in non-flowering plants such as bryophytes (mosses, liverworts) and ferns, which are part of the plant groups known as non-vascular and seedless vascular plants, respectively.

Angiosperms have a unique reproductive structure called the flower, which contains the male reproductive organ called the stamen and the female reproductive organ called the pistil or carpel. The stamen consists of the anther, which produces pollen containing the male gametes (sperm cells).

The pistil consists of the stigma, style, and ovary, where the ovules are located. The fusion of pollen with the ovule leads to fertilization and the development of seeds within the ovary.

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Halogens are only microbistatic . The statement is false.

Halogens, such as chlorine and iodine, are often used as disinfectants and antiseptics due to their ability to kill microorganisms. Halogens are considered microbicidal, meaning they have the ability to kill microorganisms, including bacteria, viruses, and fungi.

However, it is important to note that the effectiveness of halogens as microbicides can vary depending on a number of factors, including the concentration of the halogen solution, the contact time with the microorganisms, and the type of microorganisms being targeted. In some cases, halogens may only be microbistatic, meaning they have the ability to inhibit the growth of microorganisms without necessarily killing them.

So, while the statement that "halogens are only microbistatic" is false, it is true that the effectiveness of halogens can vary depending on the specific circumstances of their use.

Halogens, such as chlorine and iodine, are effective disinfectants and antiseptics due to their strong oxidizing properties. When halogens are added to water or other solutions, they react with and disrupt the cell membranes and other structures of microorganisms, effectively killing them. This process is known as microbicidal activity.

However, the effectiveness of halogens as microbicides can be influenced by a number of factors. For example, the concentration of the halogen solution used can impact how effectively it kills microorganisms. Higher concentrations of halogens generally result in greater microbicidal activity, while lower concentrations may only inhibit microbial growth without necessarily killing the microorganisms. The contact time of the halogen solution with the microorganisms is another factor that can influence its effectiveness, as longer contact times can allow for more complete destruction of the microorganisms.

In some cases, halogens may only be microbistatic, meaning they are able to inhibit the growth of microorganisms without necessarily killing them. This can occur when the concentration of the halogen solution is not high enough or the contact time is not long enough to result in complete microbicidal activity. In these cases, microorganisms may be able to recover and grow once the halogen solution is removed.

Overall, while halogens are generally considered to be microbicidal, their effectiveness can vary depending on the specific circumstances of their use. It is important to consider factors such as concentration and contact time when selecting and using halogens as disinfectants or antiseptics.

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Answer:

if we burn coal with sulfur it will become sulfur dioxide... it is very harmful for the air... when it reaches the clouds and rains it becomes sulphuric acid. This leads to acid rain and many environmental issues. But, removing sulphur from coal makes it more pure and when it's burned it let's out CO2 which is not as harmful as sulphur dioxide.

Explanation:

Answer:

idontknow

Explanation:

The smooth endoplasmic reticulum (smooth ER) got its name due to its appearance under an electron microscope.

Unlike the rough endoplasmic reticulum, which has ribosomes attached to its surface giving it a rough texture, the smooth ER has a continuous, smooth membrane without ribosomes. This membrane-bound organelle plays a crucial role in lipid synthesis, metabolism, and detoxification of drugs and toxins. It also helps regulate calcium ions in the cell and participates in the breakdown of glycogen.

This structure allows the smooth ER to perform specific functions, such as lipid and steroid synthesis, detoxification of harmful substances, and calcium ion storage. The absence of ribosomes and its associated smooth appearance led scientists to name this organelle the smooth endoplasmic reticulum.

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Answer:

Being endothermic

Explanation:

Humans are not cold-blooded and we don't photosynthesise so only the second option applies to humans;

We produce heat internally within our bodies so we are endotherms, i.e. warm-blooded;

We shiver and have thermogenesis through metabolism to generate heat to keep body temp up and also sweating and physiological mechanisms to cool out bodies down.

A. Intelligence is not fixed but rather is a dynamic and changing capacity, B. Intelligence is not fixed and can be cultivated through education is the correct answer.

Intelligence is a complex and multifaceted concept that refers to a person's cognitive abilities, including reasoning, problem-solving, and critical thinking. It also includes the ability to learn from experience, understand and use language, and perceive relationships and concepts. The nature of intelligence is still the subject of much debate among psychologists and neuroscientists. Some researchers believe that intelligence is primarily a biologically based capacity, while others argue that it is a dynamic and changeable capacity that can be cultivated through education and experience. Regardless of its exact definition, intelligence is considered to be an important predictor of success in many areas of life, including academic achievement, job performance, and overall quality of life. It is a complex and nuanced concept that is still being studied and understood.

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Answer:

(Q1: B)

(Q2:B)

(Q3:C)

(Q4:D)

(Q5:B)

Explanation:

Question 1:

A consensus hears all voices in a group and goes with the common "majority rule" and B shows this in clear detail.

Question 2:

They both have different skill sets but we can remove option A because all fossils are handled the same way. We can remove D because it doesn't make sense for the question which leaves us with C and B. This makes us know that the answer is B because it makes the most sense for the question.

Question 3:

An anthropologist is someone who specializes in the study of human societies and cultures and their development and an archaeologist is someone who digs up fossils. The only answer that makes sense here is C because the archaeologist can uncover the tools and where they made marks in the rock while an anthropologist can use those to discover what civilization it was and how those tools were used.

Question 4:

In the context of this question we can decide that the only relevant answer is D because it would watch over a period of time that could show climate change while the others are just simple facts that can be uncovered about the daily life of these insects.

Question 5:

The steps that can be taken to fix coral bleaching are to reduce stressors, such as sedimentation and pollution, and limiting climate change. This is because the main things that cause the coral to become bleached are changes in the temperature and salinity of the water. By polluting the ocean we change the chemical formula of the water and therefore affect the coral and the climate change heats the ocean to temperatures that the coral can't or will not be able to withstand.

Answer: See the explanation for complete explanation.

Explanation:

Alright, so normally in Washing Liquid and Detergents they contain sodium laurel sulfate, which cleans dishes by removing fats and proteins. It acts the same way in the extraction of DNA, pulling apart the lipids and proteins that make up the membranes surrounding the cell and nucleus. Once these membranes are broken apart, the DNA is released from the cell.

Salt however, is different, it can trigger osmosis by attracting the water and causing it to move toward the membrane. Being solute, salt diffuses, spreading out the concentration that creates a solution.

Hope this helps!

BB76

To determine the dilution and final density of cells, we need to calculate the total volume of the diluted solution and the resulting concentration. The dilution factor is 1/100, and the final density of cells is 3.6 × 10^8 cfu/ml.

Given:

Volume of undiluted culture (V1) = 0.05 ml

Density of undiluted culture (D1) = 3.6 × 10^6 cfu/ml

Volume of sterile diluent (V2) = 4.95 ml

To find the dilution, we can use the formula:

Dilution factor = V1 / (V1 + V2)

Dilution factor = 0.05 ml / (0.05 ml + 4.95 ml) = 0.05 ml / 5 ml = 0.01

The dilution factor is 0.01, which means the solution is diluted by a factor of 1/100.

To calculate the final density of cells, we can use the formula:

Final density (D2) = D1 / Dilution factor

D2 = (3.6 × 10^6 cfu/ml) / 0.01 = 3.6 × 10^8 cfu/ml

Therefore, the dilution is 1/100, and the final density of cells in the diluted solution is 3.6 × 10^8 cfu/ml.

To calculate the dilution factor, we divide the volume of the undiluted culture (0.05 ml) by the total volume of the diluted solution (0.05 ml + 4.95 ml). This gives us a dilution factor of 0.01, indicating a 1/100 dilution.

To find the final density of cells, we divide the initial density of the undiluted culture (3.6 × 10^6 cfu/ml) by the dilution factor (0.01). This yields a final density of 3.6 × 10^8 cfu/ml.

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Answer:

Accommodation is the process of changing the shape of the lens to focus on near or distant objects.

To focus on a near object – the lens becomes thicker, this allows the light rays to refract (bend) more strongly.

To focus on a distant object – the lens is pulled thin, this allows the light rays to refract slightly.

Answer:

b

Explanation:

atom is the building block of matter

Answer:

i'm not sure sorry

Explanation:

Answer:

h20

Explanation:

Answer:

I would reccomend the southeast region against placing spotters.

Explanation:

Answer:

I would recommend the northeast and nortwest region of the us against placing spotters.

Explanation:

Glucose is not a reactant in the overall glucose catabolism pathway, but rather it is the starting substrate that is broken down through a series of reactions to generate energy in the form of ATP.

The reactants involved in glucose catabolism include oxygen, NADH, and ADP.

Oxygen is the final electron acceptor in aerobic respiration, which occurs in the mitochondria of eukaryotic cells.

NADH is an electron carrier that is generated during glycolysis and the citric acid cycle, which are the initial steps of glucose catabolism.

ADP is the precursor molecule that is phosphorylated to form ATP through oxidative phosphorylation, which occurs in the electron transport chain.

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Explanation:

This study compares the effects of cell phone usage and intoxicated driving on driving performance. It examines the independent variables of using a cell phone and driving under the influence, with the dependent variable being driving skills. The study includes experimental and control groups, while potential confounds include factors such as age, type of phone, alcohol/drug consumption, and duration of phone usage while driving. Random assignment is utilized, and to prevent selection bias, diverse participants could be included through stratified random sampling.

Cell phone vs Intoxicated driving is an example of a comparative study. Below are the answers to the given questions:

1. No, it is not an experiment.

2. The independent variable is the usage of a cell phone and intoxicated driving.

3. The dependent variable is the driving performance or skills.

4. The operational definition of cell phone usage is the participant talking on their phone while driving. The operational definition of intoxicated driving is the participant driving under the influence of alcohol or any other drugs.

5. The experimental group/condition is the participants who are driving while talking on their cell phones or driving under the influence of alcohol/drugs.

6. The control group/condition is the participants who are driving without any distraction or influence.

7. The confounds present in this study are the age of the participant, type of phone, quantity of alcohol/drugs consumed, and duration of using a phone while driving.

8.The population is the group of drivers who have a cell phone and can drive under the influence of alcohol/drugs.

9. The sample is the group of drivers who have volunteered to participate in the study.

10. Yes, the participants were randomly assigned to either the experimental or control group.

11. There could be selection bias if only certain types of participants were chosen. To prevent selection bias, the researchers could use stratified random sampling or randomly select from a diverse pool of participants.

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Answer:

Studying your notes on cells by reading them out loud. Also if you make yourself flash cards it's really useful.

Answer: Of course! Well first off make sure to study, a goal to a good grade is studying, Maybe look over some old things, or things written in your notebooks. You also want a good nights sleep! I personally stress the night before a test but relaxing listening to music should help. And finally, Study an hour before it and focus. You always have to focus on tests for good grades. Anyways, If you need more tips just ask! Good luck on your test!

Explanation:

Wishing you luck!

The variety of natural life and environments on Earth are referred to as biodiversity.

What are the difference in ecosystems and Biodiversity?

An ecosystem is the interactions between living and nonliving elements in a certain area.

An organism is a single living item. A population is all the organisms of the same species in the same place at the same time.

By raising the possibility that species would use complementary resources, and by increasing the likelihood that a particularly productive or efficient species is present in the population.

Therefore, ecosystem and biodiversity both are different but entirely interconnected.

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Answer:

The sympathetic nervous system activates what is often termed the fight or flight response. Like other parts of the nervous system, the sympathetic nervous system operates through a series of interconnected neurons.

Explanation:

During the synthesis of acetyl-CoA from pyruvic acid, (E) NADH is produced.

Nicotinamide Adenine Dinucleotide + Hydrogen is known as NADH. It occurs naturally in the body and aids in the production of energy. The body produces NADH, which is used in the production of energy. Blood pressure may change and other consequences may result from taking NADH supplements.

There is no solid scientific evidence to support the use of NADH for the treatment of Parkinson's disease, high blood pressure, high cholesterol, chronic fatigue syndrome (CFS), and a number of other illnesses. Niacin, niacinamide, and nicotinamide riboside should not be confused with NADH. These are not interchangeable.

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