How does natural selection lead to evolution?
a
Environmental changes kill weaker members of the species.
b
Stronger offspring kill weaker members of the species.
c
Overproduction provides food for stronger members of the species.
d
Helpful traits accumulate among surviving members of the species
Answers
Answer:
The correct answer is option b. "Helpful variations accumulate among surviving members of the species".
Explanation:
Natural selection is the most accepted theory of evolution, described by Charles Darwin in 1859. This theory explains that by the survival of the fittest, the helpful variations accumulate among surviving members of the species. The variations or mutations that are not helpful for the species are lost by predators and environmental factors, while the helpful variations remain in the surviving members, which leads to the species evolving to have improved characteristics.
Related Questions
help plss, ill give brainliest<33.
look at the picture.
Answers
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:)
B condensation
C precipitation
D run-off
Match the terms to the definition.
Question 1 options:
The idea of that the Earth and planets orbit the sun. A sun-centered view.
Huge clusters of stars, gas, and dust bound by the force of gravity.
A group of objects that orbit a star.
Jupiter, Saturn, Uranus, Neptune. Gas giants.
The spinning of a planet on its axis, causing day and night.
The orbit of a planet around the sun. On Earth, one year.
Mercury, Venus, Earth, Mars. Terrestrial, rocky.
A force of attraction that keeps planets orbiting the sun.
A rock that has entered Earth's atmosphere, leaving a streak of light in the night sky.
The theory the universe came forth from a single spot in an enormous explosion.
1.
Big Bang
2.
Doppler Effect
3.
Nebula
4.
Solar System
5.
Geocentric theory
6.
Heliocentric theory
7.
Gravity
8.
Galaxy
9.
Rotation
10.
Revolution
11.
Inner planets
12.
Outer planets
13.
Meteor
14.
Meteorite
15.
Meteoroid
Answers
1. Big Bang:- The theory the universe came forth from a single spot in an enormous explosion.
3. Nebula:- Huge clusters of stars, gas, and dust bound by the force of gravity.
4. Solar System:- A group of objects that orbit a star (Sun)
6. Heliocentric theory:- The idea that the Earth and planets orbit the sun. A sun-centered view.
7. Gravity:- A force of attraction that keeps planets orbiting the sun.
8. Galaxy:- Huge clusters of stars, gas, and dust bound by the force of gravity.
9. Rotation:- The spinning of a planet on its axis, causing day and night.
10. Revolution:- The orbit of a planet around the sun. On Earth, one year.
11. Inner planets:- Mercury, Venus, Earth, Mars. Terrestrial, rocky.
12. Outer planets:- Jupiter, Saturn, Uranus, Neptune. Gas giants.
13. Meteor:- A rock that has entered Earth's atmosphere, leaving a streak of light in the night sky.
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The solar system consists of many planets, moons, stars, asteroids, comets, and meteoroids, which itself is a part of the milky way galaxy. Beyond this are millions of galaxies that constitute the universe.
Big Bang is the theory the universe came forth from a single spot in an enormous explosion. Solar System is a group of objects that orbit a star. The heliocentric theory is the idea that the Earth and planets orbit the sun, a sun-centered view. Gravity is a force of attraction that keeps planets orbiting the sun.
Galaxy is a huge cluster of stars, gas, and dust bound by the force of gravity. Rotation is the spinning of a planet on its axis, causing day and night. Revolution is the orbit of a planet around the sun. On Earth, one year. The inner planets are Mercury, Venus, Earth, and Mars. Terrestrial and rocky. Outer planets are Jupiter, Saturn, Uranus, Neptune, and Gas giants.
Meteor is a rock that has entered Earth's atmosphere, leaving a streak of light in the night sky.
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Butterflies are often observed in grassy areas with many flowering plants. They have a long thin, structure called a proboscis, which is used to collect nectar from flowers. Which statement best describes how butterflies would survive in a new area with some tall trees and very few flowering plants?
A Butterflies would survive well in the new area because they rely on other butterflies for food.
B Butterflies would survive well in the new area because trees provide shade for the butterflies.
C Butterflies would not survive well in the new area because they eat food produced by the flowering plants.
D Butterflies would not survive well in the new area because the trees would block the sunlight they need to produce energy.
Answers
This is because butterflies use flowering plants as a main food source, and if taken away from them it can be fatal.
What best describes ribosomes?
Answers
Ribosomes are cellular structures that synthesize proteins from amino acids. They are composed of ribosomal RNA and proteins and are found in both prokaryotic and eukaryotic cells.
Ribosomes are essential for gene expression and cell growth. They can be free in the cytoplasm or bound to the endoplasmic reticulum or the nuclear envelope.
An example of a ribosome function is the translation of a messenger RNA (mRNA) sequence into a polypeptide chain. The ribosome reads the mRNA codons and matchesthem with the corresponding transfer RNA (tRNA) anticodons that carry the amino acids. The ribosome then forms a peptide bond between the amino acids and releases the tRNA. This process continues until the ribosome reaches a stop codon on the mRNA and terminates the protein synthesis.
Answer:
A ribosome is a intercellular structure made of RNA and protein
Explanation:
A student wants to know if the weight of a cart affects its speed at the bottom of a ramp. He can change the weight of the cart by adding different numbers of balls, and he can change the height of the ramp by using different numbers of blocks. Which three tests would be invalid? (Select all three)
Answers
Answer: D
Explanation:
Answer: its the first one
Explanation:
What conditions are required for salt crystals to form?
organisms trapping salt particles in their bodies
very high temperatures
when salty oceans and seas evaporate
extreme pressures
Answers
The conditions that are needed for salt crystals to form are:
when a solution becomes over saturated, meaning too much salt in the water, the extra salt in a solution makes the crystals form overtime.
This can either be by letting it cool down, or evaporation
Answer: down
Explanation:
No the water is essentially distilled by evaporation. Leaving all the dissolved salts and suspend matter behind.
What is the ethical value of using a model organism, such as zebrafish for doing marine research on pathogens?
The organism can prevent diseases from being transmitted from one species to another, thereby reducing fish mortality.
The organism is immune to all diseases, so the effectiveness of new treatments can be studied over long periods of time.
The organism produces chemicals that can be extracted for use as antibiotics, so they are economically important.
The organism shares its physiology with humans, so testing of new drugs can be done without hurting people.
Answers
Answer:
The Answer is C
Explanation:
Answer: i think it c
Explanation:
Look around you. Describe three objects in the room that can be compared to organelles in function.
Answers
Answer:
The walls and door they can represent the wall of the cell
Cabnet can repreasent the central vacoule
And if your lucky enough sugar inside the cabnet this is for plant cells only though
Explanation:
If you're fortunate, the sugar within the cabinet can represent the central vacuole, and the walls and door can stand in for the cell's walls. Unfortunately, this only pertains to plant cells.
What do a cell's organelles do?An organelle is a microscopic structure that serves one or more specific functions for the cell, similar to an organ in the human body. The nucleus, which houses genetic information, the mitochondria, which produce energy stored, and the ribosomes, who put together proteins, are some of the more significant cell organelles.
What are the function of organelles?The maintenance of the shape of a cell, reproduction, motility, protein synthesis utilising the Pcr, power generation, and the transport of materials into and out of the cell are only a few of the many functions carried out by cell organelles.
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The images below model how the lungs take in and push out air. Identify each as either inhalation or exhalation; then explain how each image models it.
Use the following terms correctly in each description: lungs, diaphragm, chest cavity, negative pressure, positive pressure.
Answers
Answer:First picture is inhalation and the second picture is exhalation.
Explanation:
1.What are three types of seismic waves?
Answers
Answer:
p waves and s waves
Answer:
There are three basic types of seismic waves – P-waves, S-waves and surface waves. P-waves and S-waves are sometimes collectively called body waves.
Explanation:
use google lol
Yo can someone help me out
Answers
Answer:
I think the answer is A
Explanation:
As temperature rises, molecules move faster, so logically it would make sense that the answer would be A since the temperature rose from 10.0 to 10.7.
Explaination: the started off slow but by the end it got a lot faster
Which climatic zone is always hot and humid? arid, tropical wet, temperate continental, Mediterranean
Answers
Answer:tropical wet, is the anwers
Explanation:
The tropical wet climate zone is the climate zone that is consistently hot and humid. This climate zone is characterized by year-round high temperatures and high humidity, with average temperatures of 80°F (27°C) or more, and annual precipitation of 59 inches (1,500 mm) or more.
What is tropical wet climate zone?The tropical wet climate zone is a type of climate that can be found in areas close to the equator. It is distinguished by high temperature, year-round high humidity and abundant rainfall. Equatorial climate or tropical rainforest climate are other names for this climate zone.
One of the most ecologically diverse regions on Earth is the tropical wet climate zone, which is also an important supplier of natural resources such as timber, fruits and medicinal plants. Deforestation, climate change, and other human activities also pose threats to the region, and they have the potential to have major impacts on the natural and economic systems that depend on this climate zone.
Therefore, the tropical wet climate zone is the climate zone that is consistently hot and humid.
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A fertile valley has farms and a small town. The valley is surrounded by hills, but these hills are not good for farming or living. Over time, the town expands.
How will the town’s growth most likely affect the availability of farmland in the valley?
1. The availability of farmland will decrease.
2. The availability of farmland may increase or decrease.
3. The availability of farmland will remain unchanged.
4. The availability of farmland will increase.
Answers
3, because the land was already not good for farming.
write a paragraph explaining the flow of energy through your food web. (100 points :>)
Answers
When you ride in your car and the trees and buildings appear to you to move backward, you are observing motion.
Answers
Answer:
yea u are they seem faster even they are not
Explanation:
(Daily Question) If you were to choose what animal you would be what would the animal be? Comment your answers too!
Answers
Monkey
we are most similar to them but smarter so i think it would be fun to kinda relearn how to do basic stuff like making tools, since some monkeys can make stuff with a simple rock. AND OF COURSE TO SWING!!!
How long does it take for one red blood cell to go round the body?
o 20 seconds
o 20 minutes
o 24 hours
o 24 minutes
Answers
Answer:
99% sire its 20 seconds
Explanation:
<3
How are meiosis and mitosis different?
A: In mitosis, when the two sets of genetic material separate, each daughter cell receives one complete set of chromosomes.
B: In meiosis, the chromosome number is reduced by half.
C: Mitosis is a form of asexual reproduction, whereas meiosis is an early step in sexual reproduction
D:All of these are correct.
I think the answer is D. Is that correct?
Answers
Answer:
D
Explanation:
Most of the answers contain true information about both.
Meiosis is a process where a single cell divides twice to produce four cells containing half the original amount of genetic information.
A heterozygous for height pea plant is crossed with a homozygous recessive for height pea plant. What is the punnet square?? Please answer quickly!!!
Answers
Homozygous recessive = bb
Punnet = Bb Bb bb bb
Phenotype is 50%
what makes a salami brain a salami brain?
Answers
salamibrain
thankj no p[roblme
S.B.
Which arrow or arrows represent a release of carbon dioxide? What process is occurring at the arrow(s) you selected?
Answers
Arrow 'f' releases carbon dioxide.
Answer:
F I think I am not sure though hope I helped.
USING THE GRAPH BELOW, ANSWER THE QUESTION.
Q. There are 3 different populations in this graph. Mark two statements below which are most likely true.
1. Population A and population C probably have a predator-prey relationship
2. Population B and population C probably have a predator-prey relationship
3. Population A is not likely harmed nor helped by populations B and C
4. Population A is often harmed or helped by populations B and C.
Answers
Answer:
2 and 3
Explanation:
1 is incorrect because A does not seem to have a predator-prey relationship but C does
2 is correct because of the increase and decrease does indicate the predator-prey relationship B and C have
3 is correct because the over time the population remains the same since it is not harmed by B and C
4 is incorrect because if A was harmed by B and C, the population should decline.
Correct
Correct
Incorrect
Which of these organisms is not a chordate?
earthworm
snake
sea squirt
human
Answers
hope this helped.
while the earth is home to many members of this phylum earthworms are not a member of blank
Answers
Answer: Chordata.
Explanation: While the earth is home to many members of this phylum, earthworms are not a member of Chordata.
what adaptations reduce competition
Answers
Answer:
An animal may adapt to a different food, something other than the food which is consumed by all the other animals of the region. This adaptation will allow it to consume something that is not eaten by its competitors, thus allowing it to be the most significant consumer of that particular food.
Answer:
Food is one of the major reasons for competition.
So if an organism is to adapt to another food type/source, competition might be reduced in the ecosystem
Why are coconut trees found in coastal areas?
Answers
The warm, humid climate near the ocean is ideal for coconuts, which require constant moisture. Coastal locations also provide easy access to water, whether from rainfall or seawater absorption through the roots, to keep the coconut palms hydrated. Sandy soil, abundant at the coast, allows the coconuts' extensive root systems to spread and helps retain moisture.
In addition, coconut palms are well-adapted to withstand salty winds and wind-borne salt spray from the ocean, bending but not breaking in strong storms. Their flexible trunks and fan-like leaves help them cope with windy conditions.
Coconuts near coastal areas provide ecological benefits as well. Their root systems stabilize beach soil and reduce coastal erosion. Coconut palms offer shelter and food for coastal wildlife like birds and crustaceans.
In summary, the combination of warm, moist air; access to water; suitable soil; and ability to endure coastal weather make seaside locations a coconut palm paradise where these trees can thrive.
__________________________________________________________
The simple graph shows the relationship between available resources and population size. What evidence does the graph provide? A. An increase in the amount of available resources causes a decrease in population size. B. A decrease in the amount of available resources causes a decrease in population size. C. An increase in the population size causes an increase in the amount of available resources. D. A decrease in the population size causes a decrease in the amount of available resources.
Answers
Answer:
b
Explanation:
Its right
Sorry if not correct
What role do glucose and oxygen play in cellular respiration?
O They are reactants because they are present before the reaction.
O They are reactants because they are present after the reaction.
O They are products because they are present before the reaction.
O They are products because they are present after the reaction.
Answers
Answer:
A
Explanation: They are reactants because they present before the reaction. Hope this helps!
Answer:
its A uwu
Explanation:
A scientist genetically engineered a grain cereal. The genetically engineered variety can produce its own vitamins and is drought resistant. What is the likely impact of growing such a cereal crop on the society?
May trigger an adverse climate change
May worsen the water crisis around the world
Would be beneficial for the malnourished population
Would increase the shortage of food around the world
Answers
URGENT PLEASE HELP! WILL MARK BRAINLIST
Make a list of different weather patterns (windy, rainy, sunny, snow, etc.) and the barometric pressure that usually accompanies each of these weather conditions.
Answers
Answer:
Temperature : barometric pressure differs in accordance to altitude
Humidity : Temperature affects this more than air, hence refer above
Air pressure : Barometric pressure IS air pressure
Wind : As wind slows the pressure increases, and vice versa
Precipitation: A low pressure system creates more precipitation