what is the difference between natural selection and evolution
Answer:
Evolution is a gradual change in the inherited traits of a population over many generations.
Natural selection is a mechanism where the members of a population best suited to their environment have the best chance of surviving to pass on their genes. The natural environment selects for these members over others in the population.
Over many generations, because more of the best suited members have been reproducing, the population all now have the trait that makes them better suited for the environment.
This population has now evolved to better suit its environment, through the process of natural selection.
what is brain cancer ?
Answer:
Brain cancer is an overgrowth of cells in your brain that forms masses called tumors. Cancerous, or malignant, brain tumors tend to grow very quickly. The symptoms of brain cancer depend on the size and location of the tumor.
Common brain cancer symptoms include:
headaches that are usually worse in the morning
nausea
vomiting
a lack of coordination
a lack of balance
difficulty walking
memory lapses
difficulty thinking ,speech problems
.Many of the symptoms of brain cancer are also caused by other, less serious conditions. There’s no need to panic if you’re experiencing these symptoms, but it’s a good idea to visit your doctor to have your symptoms investigated, just in case.
Explanation:
Question 2 of 30
White-tailed deer eat leaves and grasses in their ecosystem. Which of the
following terms best describes a white-tailed deer?
A. Producer
B. Secondary consumer
C. Primary consumer
D. Predator
SUBMIT
Answer:The answer would be C. primary consumers because primary consumers eat grass.
Explanation:It wouldn't be a producer because producers make their own food.It wouldn't be Secondary Consumer because secondary consumers eat other animals and are carnivore.And t wouldn't be predator because predators hunt for their food and the deer is not hunting for its food.So therefor it would be a primary consumer.
Analyze the following information and identify the type of mutation –
Original: A T T C G C T T A
Mutated: A T T C C C T T A
Missense
Nonsense
No mutation
Silent
Answer:
missense
Explanation:
the codon CGC is mutated to CCC
while CGC codes for arginine, CCC codes for proline
=> missense
Earth's rocks change from one type into another, as described in the rock cycle. One type of rock
is known as metamorphic rock. Metamorphic rocks are formed under which of the following
conditions?
I'm not sure have you tried or attempt it??
Answer:
heat and pressureExplanation: Because I say so ⊕
Core:
List the chemical elements that make up carbohydrates, fats and proteins
Answer:
Carbs are made mostly of Carbon, Hydrogen and Oxygen
Lipids(Fats) are mostly Hydrogen and Carbon only
Proteins are amino acids
Explanation:
Answer: Carbohydrates and lipids are made of only carbon, hydrogen, and oxygen (CHO). Proteins are made of carbon, hydrogen, oxygen, and nitrogen (CHON).
Explanation:
5. If the weather in Richmond, Virginia, changed to very cold (snow on the ground 8 months of each year) over the next few years, what change might occur?
a. The cold weather would cause a mutation in squirrels which causes their fur to be white.
b. If a mutation occurred which caused white fur to develop, such white squirrels would have a better chance to survive and produce more offspring with the characteristic.
c. Evolution would definitely occur resulting in white squirrels.
Answer:
A.
Explanation:
Because, they would have to adapt to their surroundings to survive and the white fur is a little thicker and help them blend in better form predators
b. If a mutation occurred which caused white fur to develop, such white squirrels would have a better chance to survive and produce more offspring with the characteristic.
What is natural selection?If a mutation occurred in a squirrel that caused it to have white fur, and if this trait helped the squirrel survive and reproduce more effectively in a cold, snowy environment, then it is possible that the trait could become more common in the population over time. This is known as natural selection.
However, it is important to note that whether or not a particular trait will become more common in a population depends on many factors, including the environment, the competition for resources, and the presence of predators.
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6. The diagram shows a complete circuit with a battery and a buzzer making
noise. This circuit works by transforming - *
O F. chemical energy to electrical to sound.
G. electrical enengy to thermal to light.
O H. sound energy to electrical to chemical.
O
J. mechanical energy to electrical to sound.
g When an oxygen molecule diffuses from the air in the lung into the plasma in a capillary in the lung, how many times does it have to diffuse through a plasma membrane before reaching the plasma
Answer:
The answer is 2.
Explanation:
When oxygen gets into the lungs, it first needs to diffuse through the alveoli and into the blood. Then through the veins and capillaries, it diffuses into all the calls in the body. It does so quite easily because it is a nonpolar and a very small molecule with a low concentration inside the cell. This gives it the ability to diffuse easily through the cell membrane.
So the number of times that oxygen has to diffuse through a plasma membrane is two.
I hope this answer helps.
does anyone have the cell respiration virtual lab
Answer:
No, I haven't learn that when I learn it I will teach you everything I know
A doctor treats a patient with a skin condition with different creams to see which is most effective. What is the independent variable?
1. Skin Creams
2. Skin Conditions
Answer:
1. Skin Creams
Explanation:
An independent variable is the only variable that is changed while the rest is kept the same. In this setup, the doctor is using different creams on the same patient with the same skin condition so the independent variable is the skin cream and not the skin condition.
Forest butterflies are often brown. This helps them to
Answer:
Avoid predators
Explanation:
Organisms often mimic their surroundings to escape the predators. This technique is also called camouflaging.
Forest butterflies have also adopted several structural adaptations to avoid predators. Many of them have brown wings with jagged edges so that they resemble dried leaves. In this way, they blend with their surroundings, especially the forest floor, and go unnoticed. On the other hand, butterfly larvae are green in color so that they resemble the leaves on which they feed and avoid predators.
what is the tube connecting the ovary to the uterus called
Answer: Fallopian tube
Explanation:
The fallopian tube is where eggs travel from the ovaries to the uterus
The Earth's resources can be conserved
a. only by the actions of industry.
b. by reducing the use of
nonrenewable
resources.
c. if people do
whatever
they want to
do.
d. by throwing
away all our
trash.
please help thank you
Answer:
The answer is B All the way
Explanation:
please appreciate my help by giving me brainliest
Monarch butterflies are toxic when eaten. Viceroy butterflies look like monarchs and, therefore, don’t get eaten. What defense is the Viceroy using?
A. Chemical defenses
B. Mechanical defenses
C. Mimicry
D. Camouflage
Answer:
Mimicry
Explanation:
"Vicerory butterflies look like monarchs". They are mimicking the appearance of the monarch to protect themselves because monarchs are toxic.
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Answer:
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Explanation:
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What term that best describes the "mini organs" of the cell? *
A: Cell membranes
B: Nucleus
C: ER
D: Organelles
Answer:
D organelles
Explanation:
Its the actual name for "mini organs" in a cell.
giving brainliest pls help !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
Man didnt exert force C
Explanation:
If the man and box had the same mass he would still be able to push it so not D
The box is obviously not moving so not B
There is no way the box does not have mass not A
What are two substances that are stored by the bones
Answer:
The bone stores 99% of the body's calcium and 85% of the phosphorus. It is very important to keep the blood level of calcium within a narrow range.
Are the anomalies the same thickness along all ridge segments Why or why not?
plz help :D
Answer:
The equivalent magnetization (EM) and mantle Bouguer anomaly (MBA) were calculated along the ultraslow-spreading Mohns Ridge axis in the Norwegian-Greenland Sea. The magnetic anomaly and the associated EM were compared with the bathymetry, MBA, seismically determined crustal structure and geochemical data at both the inter-segment scale (>60 km) and the intra-segment scale (20–60 km). At the inter-segment scale, the magnetic highs at the segment centers are independent of the MBA. Of the 13 segments, 9 with magnetic anomalies >700 nT coincide with axial volcanic ridges identified from multibeam bathymetry maps, which suggests that the magnetic highs at the segment centers may be more associated with the extrusive lavas rather than the amount of magma supply. With few exceptions, the magnetic anomaly lows associated with MBA highs at the segment ends increase from south to north. This trend might be explained by thickened extrusive basalts and/or more serpentinized peridotites at the segment ends in the north. At the intra-segment scale, the most prominent features are the decreases in the magnetic anomalies and associated EMs from the segment centers to the ends. The intra-segment magnetic anomalies have positive and negative correlations with the bathymetry and MBA, respectively. The magnetic signal modeled by the seismically determined layer 2A with an assumed constant magnetization is remarkably consistent with the observed magnetic anomaly, which strongly suggests that the thickness of the extrusive basalts dominates the magnetic structure in each segment along the Mohns Ridge. In general, the thickness of the extrusive basalts dominates the magnetic structure along the Mohns Ridge, whereas the contributions from serpentinized peridotites may be significant at the segment ends and may produce long-wavelength magnetic variations. The magnetic data can be used as an indicator of the thickness of the extrusive basalts within segments along the ultraslow-spreading Mohns Ridge.
Explanation:
Damage to your computer can be caused by not properly taking care of your equipment. Which of the following should you avoid doing in order to keep your computer in good working order? A. Bundling electrical cords
B. Drinking soda near your computer C. Installing an antivirus program D. Working at a desk
Answer:
B
Explanation:
i did this this year in my 9th grade tech class and got it right
Which role does photosynthesis play in the flow of energy? (1 point)
Photosynthesis converts radiant energy to chemical energy to be used by organisms in the food chain.
Photosynthesis is how plants break down glucose to use for energy.
Photosynthesis allows plants to create energy for themselves to store and use for metabolism.
Photosynthesis provides radiant energy to all the organisms in the entire food chain.
Answer:
Radiant energy transformation that takes place during photosynthesis
Explanation:
Radiant energy transformation that takes place during photosynthesis
Through photosynthesis, certain organisms convert solar energy (sunlight) into chemical energy, which is then used to build carbohydrate molecules. The energy used to hold these molecules together is released when an organism breaks down food. Cells then use this energy to perform work, such as cellular respiration
Brainliest please
Photosynthesis converts radiant energy to chemical energy to be used by the organisms in the food chain .
What is photosynthesis?
It is defined as a process by which plants and other photosynthetic organisms convert the light energy in to chemical energy through the process of cellular respiration.
Some of the energy which is converted is stored in molecules of carbohydrates like sugar and starches which are made up of from carbon dioxide and water . Photosynthetic organisms which can perform photosynthesis are algae and cyanobacteria. Photosynthesis is largely responsible for producing and maintaining the content of oxygen in earth's atmosphere.
The process begins with proteins absorbing light energy which are called reaction centers and contain a green pigment which is called chlorophyll . In plants ,these pigments are present inside organelles called chloroplasts while in bacteria they are present in plasma membrane.
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What is the role of ATP when large molecules need to be transported across the cell membrane against the concentration gradient?
The bond between the phosphate groups is broken to store energy.
The bond between the phosphate groups is broken to release energy.
Bonds are formed between the adenine and the ribose to store energy
Bonds are formed between the ribose and the phosphate to release energy.
Answer:
b. the bond between the phosphate groups is broken to release energy
Explanation:
Phosphate groups are negatively charged => there is a pull between the two groups=> it's easy to break this bond & ATP is unstable
=> ATP has a lot of free energy
breaking the bond between phosphate groups makes the molecules more stable (aka contains less free energy)=> delta G <0
=> breaking this bond releases energy
the energy released by ATP is then used to transport large molecules against the concentration gradientThe bond between the phosphate groups is broken to release energy. This energy helps in the transport of molecules across the cell membrane against the concentration gradient.
ATP is also called as the energy factory for the cell. It is also required for various metabolic processes within and outside the cell. It has a role in transfer of macromolecules like proteins, lipids, and other into and out of the cell. It is difficult for molecules to be transported into and out of the cell across a cell membrane against a concentration gradient for this energy in the form of ATP is required. When the hydrolysis of the molecule of ATP occurs it releases the phosphate group along with the release of energy this energy is necessary for the active transport of molecules against the concentration gradient across a cell membrane. Hence, the bond between the phosphate groups is broken to release energy. This energy helps in the transport of molecules across the cell membrane against the concentration gradient.Learn more about ATP:
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Which correctly describes the male part of a flower?
A. It's called the stamen and is made of the anther and filament.
B. It's called the pistil and is made of the anther and stigma.
C. It's called the pistil and is made of the filament and style.
D. It's called the stamen and is made of the stigma and style.
Answer:
It's called the stamen and is made of the anther and filament.
Explanation:
The male part of the flower is called a stamen and is made of the anther and filament. The female part of the flower is called the pistil and is made of the stigma, style, and ovary.
Also, I took the quiz and this was on it!
Which of the following objects has kinetic energy?
Answer:
where are the objects?
Explanation:
I need help with my biology work can anybody help me with this answer please?
Answer:
d
Explanation:
because all those products mixed together will give another product
Answer:
c
Explanation:
a caldera forms when ____________________
Answer:
A caldera is a large depression formed when a volcano erupts and collapses. During a volcanic eruption, magma present in the magma chamber underneath the volcano is expelled, often forcefully.
Answer:
whn a volcano erupts
Explanation:
what is biomolecule
Answer:
well
bio means study of life
and yk what a molecule is
so I think it means study of molecules?
Which type of reproductive strategy do you think is more advantageous for survival? Make a claim and support it with reasoning.
The type of reproductive strategy that may be more advantageous for the survival of an individual is the sexual mode of reproduction due it increases the chances of generating more adaptive (fittest) genotypes and thus superior phenotypes in a given environment.
What are the types of reproductive strategies?The types of reproductive strategies refer to all types of strategies that organisms use to generate more and fittest adapted organisms capable of surviving and reproducing in a given environment, which include, for example, mode of reproduction (e.g. gametic generation), sexual reproduction and/ or asexual reproduction, age of individual during the reproductive stage, etc.
In conclusion, The type of reproductive strategy that may be more advantageous for the survival of an individual is the sexual mode of reproduction due it increases the chances of generating more adaptive (fittest) genotypes and thus superior phenotypes in a given environment.
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Remember that we see the color of objects because that color bounces off the object and back to our eyes. The other colors are soaked up by the shirt like a sponge. Why do you think the green light is the least effective color to give plants energy to grow?
If the light color is red or purple then the plant will absorb some amount of energy from the light, Green light is the least effective for plants as the plants are themselves green due to the presence pigment Chlorophyll in chloroplast.
what is function of chloroplast ?
Chloroplasts are the membrane bound cellular organelle present in photosynthetic organism like plants and algae, observed in mesophyll cells of leaves and contain a high concentration of chlorophyll pigment which absorb sunlight.
It has extra-nuclear semiautonomous DNA and make food by the process of photosynthesis by absorbing sunlight into chemical energy.
It also involve indirectly in the process of generation of carbon and sugar molecule during the Calvin Cycle or dark reaction of photosynthesis.
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Chlorophyll absorbs energy from blue- and red-light waves and reflects green-light waves during photosynthesis, giving the plant its characteristic green color.
What is the effect of green light in plants?Other pigments, such phycoerythrin, can effectively absorb green light to promote photosynthesis. Additionally, green light can encourage stem elongation, which boosts plant light absorption.
Despite being the visible spectrum's least effective wavelength for photosynthesis, green light is nonetheless helpful and affects plant morphology.
One might occasionally hear that plants reflect green light rather than using it for photosynthesis.
Therefore, green light is the least effective color to give plants energy to grow.
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