What are the roots of x in -10x2 + 12x − 9 = 0?
A.

B.

C.

D.

E.

Answer:

The illustrations and short film show that there is natural variation of coat color in the population of rock pocket mice living on the lava flow. The short film explains that mutations can cause a change in coat color, and that these genetic changes are being passed on to offspring.

Explanation:

Answer:

If we increase the temperature of the solution, then the dissolving compound would dissolve more easily.

Explanation:

If we increase the temperature of the solution, then the dissolving compound would dissolve more easily.

If we increase the temperature of the solution, then the dissolving compound would dissolve more easily. Boiling Point of Compounds If the inter-molecular forces of any compound is really strong, then the boiling point of the compound would be really high.

The temperature at which the pressure that a liquid is subjected to from its environment equals the pressure that the liquid's vapour is subjected to; in this situation, the addition of heat causes the liquid to turn into its vapour without rising the temperature.

The melting point is the temperature at which a substance changes from its solid to liquid state. Boiling point is the temperature point at which air pressure and liquid vapour pressure are equal.

Therefore, If we increase the temperature of the solution, then the dissolving compound would dissolve more easily.

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Muscle is soft tissue. Many elastic fibers make up the muscles. The body has over 600 muscles. Different muscle types have different tasks. Some muscles help you run, jump, and perform delicate tasks like threading a needle. Other muscles enable breathing and food digestion. Your heart is a hard working muscle that beats thousands of times a day. There are three types of muscle tissue in the body. They are:

Skeleton: As part of the musculoskeletal system, these muscles work in concert with bones, tendons and ligaments. Tendons attach skeletal muscles throughout the body to bones. Together they support the weight of the body and aid movement.

You control these voluntary muscles. Some muscle fibers contract rapidly, expending short bursts of energy (fast-twitch). Others move slowly like this: B. Back muscles that help with posture.

Heart: These muscles line the walls of the heart. They help the heart pump blood through the cardiovascular system. They do not control the heart muscle. Your heart tells them when to contract.

Smooth: These muscles line organs such as the bladder, stomach, and intestines. Smooth muscle plays an important role in many body systems, including the female reproductive system, the male reproductive system, the urinary system, and the respiratory system.

These muscle types work without you thinking. They perform important tasks such as moving waste products through the intestines and helping the lungs expand when breathing.

The components of the cell are as follows:

            Cell organelles

            Nucleolus

            Nuclear membrane

             Endoplasmic reticulum

             Golgi Bodies

             Ribosome

              Mitochondria

              Lysosomes

              Chloroplast

              Vacuoles

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Answer: There's a lot of sun all year round

Explanation:

Australia is close to the equator which means it is hotter as the sun is closer. The heat from the sun damages our skin and causes skin cancer. In Australia the rates would be high because people are exposed to the sun more.

Answer:

The pesticides are worn off by the weather.

Explanation:

Becuase the chemicals can only work for a little in the pesticides so when bad weather comes around it finishes the rest of the chemicals in the pesticide.

Hope this Helps :)

Probably insects developed resistance to the pesticide.

Explanation:

The term resistance refers to an inheritable change in the population sensitivity,. In the exposed example, the first time that the farmer sprayed the pesticide, the insect population decrease sharply. This means that the chemical affected them severely. They probably passed this modification to the following generations, which expressed it, and developed resistance to the pesticide.

Answer:

S - Savannas are typically found in tropical or subtropical regions.

S - Savannas tend to have more trees and shrubs.

S - Savanna's climate is drier than that of a grassland.

G - Grasslands are found in temperature regions.

G - Temperature Grasslands are mainly devoid of trees, receive less rainfall than Savannas & endure broader temperature extremes.

G - Grasslands make up 25 percent of the Earth's land surface and dominate in regions with limited rainfall, which prevents forest growth. This results from nearby mountain ranges that cause rain shadows over adjacent open-range lands.

B - Both represent the world's richest and most diverse ecosystems. They both provide a home for a quarter of the world's population and a habitat for thousands of plants and animals.

B - Many species gather in vast numbers, graze on the varied grasses, and can be found nowhere else on Earth. The coexistence between wildlife and grasses is key to healthy ecosystems. Animal migrations regenerate the landscapes, by controlling pests, dispersing seeds, and trampling invasive species. Through this partnership, grasslands and savannahs generate vital benefits for both people and nature.

B - Ecosystems such as these two in specific are essential for climate mitigation – they store carbon, locking it deep in the soil and extensive root systems. They are the source of or support many of the world’s biggest rivers and wetlands, ensure food security, support livelihoods, and are embedded in the cultural identity of millions of people.

(Also, A savanna or savannah is a mixed woodland-grassland<---similarity)

Explanation: Just research. I decided to state 3 characteristics for both The Savanna and The Grasslands, and then 3 for "B" (both).

Answer:

True. The heart contracts twice per heartbeat. One contraction is the ventricular and the other one is the artrial.

Answer:

Atmosphere and Biosphere

Explanation:

From the diagram of the rock cycle the missing part is ( B ) ; Melting

Magma is a hot liquid/semi-liquid rock that is usually formed under the earth due to high pressure and temperature present in the inner core of the earth. magma is obtained by the melting down of existing rocks ( Igneous, sedimentary and metamorphic rocks ) under high pressure and temperature in the earths core.

Magma is released to the earth surfaces during volcanoes therefore the missing term  in the rock cycle is melting

Hence we can conclude that from the diagram of the rock cycle the missing part is Melting.

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Answer:European Hamster

Smallest breed

Roborovski hamster

Stout-bodied rodents,

with tails shorter than body length, and have small, furry ears, short, stocky legs, and wide feet.

en.wikipedia.org

Popular breed

Golden hamster

They carry food in their spacious cheek pouches to their underground storage chambers. When full, the cheeks can make their heads double, or even triple in size.

en.wikipedia.org

Explanation:

Answer: Percentage kid will have sickle cell anemia: 0%

              Percentage kid will be carriers for sickle cell anemia: 50%

Explanation:

Parents: SS and Ss

Kid possibilities: SS, SS, Ss, and Ss for the 4 boxes of the Punnet Square

Answer:

Friction and fluid resistance are resistive forces when the material is stationary. However, both can also contribute as an applied force when the materials or objects are moving relative to each other. For example, a boat moving through still water experiences the resistive force of water resistance.

Explanation:

Hope This Helps :P

Answer:

It's called resistant, because you can't stop it because it's just natural.

Definition of resistant:

Explanation:

May I have brainliest please. :)

Answer: 1. Chlorofluorocarbons (CFCs) are anthropogenic compounds that have been released into the atmosphere since the 1930s in various applications such as in air-conditioning, refrigeration, blowing agents in foams, insulations and packing materials, propellants in aerosol cans, and as solvents. CFCs contribute to the loss of the protective ozone layer, which blocks ultraviolet rays from the sun. This exposes more people to UV radiation, which can cause skin cancer. 2. ▫ Gaussian white noise reflects well fluctuations in the biological environment due to thermal agitation. It also accounts for measured variability in the state and behavior of biological units such as cells size, gene expression levels, concentration of proteins.... pdf. Description. Age-related hearing loss (also known as presbycusis) is a decrease in hearing ability that happens with age. In most cases, the hearing loss affects both ears. It can begin as early as a person's thirties or forties and worsens gradually over time.

Explanation:

Answer:

I suppose it's liquid as the rocks come out of the volcano I the form of molten magma

Answer: plants or animals that migrated to new places where they are not native

Explanation:

Answer:

plants or animals that migrated to new places where they are not native

Explanation:

Invasive species are non-native species that cause harm to the environment, economy, or human health. These species often outcompete native species for resources, prey on native species, and disrupt the natural balance of the ecosystem. They can also spread diseases to other species, and cause significant economic damage. Examples of invasive species include the emerald ash borer, zebra mussels, gypsy moths, and Asian long-horned beetle.

Answer:

Earth is not heated in a uniform manner, there are hit and cold spots, e.g you have a desert inland the Sun heats it, hot air rises. Since there can't be a vacuum, colder air from the surroundings must fill the gap, then you get convection.

Explanation:

Explanation:

the answer is B. Convection currents drive atmospheric circulation at the global scale. The Earth is heated most intensely near the equator, where this air rises as part of the intertropical convergence zone. It then reaches high altitudes and diverges poleward as part of the Hadley cell, a permanent circulation cell in the tropics. This is the primary means in which excess energy is transported poleward via the atmosphere. This air and its energy tends to subside in the subtropics, and eventually move poleward again in the Ferrel cell of the mid-latitudes and polar cell of the polar regions through eddy diffusion.

Answer:

Label A: Evaporation

Label B: Convection

Label C: Precipitation

Water moves from the hydrosphere to the atmosphere through Evaporation.

Water moves from the atmosphere to the lithosphere through Precipitation.

Explanation:

Hope it helps:)

Answer:it is d

Explanation:D

Arrow 'f' releases carbon dioxide.

Answer:

F I think I am not sure though hope I helped.

Answer:

Changes in either the physical or biological components can alter the populations of many different organisms. These changes are called disturbances and can be either natural (volcanic eruption, drought) or man-made (increase in nutrient input by adding fertilizers, extinction of a species by habitat removal)

Explanation:

hope this helps

Answer:

There are three main types of variables in a scientific experiment: independent variables, which can be controlled or manipulated; dependent variables, which (we hope) are affected by our changes to the independent variables; and control variables, which must be held constant to ensure that we know that it's our manipulation of the independent variable causing the change in the dependent variable. Using these variables correctly helps scientists measure cause and effect in scientific experiments and allows scientists to manipulate cause and effect to produce desired outcomes.

Explanation:

Answer:

10 % of the energy. This efficiency of energy transformation is high

Explanation:

Answer:

model 1

Explanation:

with less weight it means less fuel is required to gain speed.