Answer:
The Gypsy Moth, Nutria, Zebra Mussel, Hydrilla, Sea Lamprey and Kudzu are examples of non-natives that have caused massive economic and ecological losses in new locations because the natural controls of their native ecosystems were not there.
Non-native species can provide services useful to humans, particularly in facilitating many contemporary needs of ... For example, D. polymorpha has both numerous negative and positive effects on natural ecosystems.
what produces a unstable form of energy for the cell
Answer:
In both animal and plant cells. ... Only in plant cells. Mitochondria. Produces a usable form of energy for the cell.
explain why the dicotyledonous flower is more successful in reproduction than the monocotyledonous flower
Answer:
leaves are arranged horizontally , flowers are lifted up, this facilitates pollination
can oxygen diffuse across the cell membrane?
Answer:
Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion or a type of diffusion known as osmosis. diffusion is one of the principal method of movement of substances within sales, as well as the method for essential small molecules to cross the cell membrane.
Explanation:
Hope this helped Mark BRAINLIEST!!!
what is hail stones?why is oxygen
Answer:
hailstones --> Hail is a type of precipitation, or water in the atmosphere. Hail is formed when drops of water freeze together in the cold upper regions of thunderstorm clouds. These chunks of ice are called hailstones. Most hailstones measure between 5 millimeters and 15 centimeters in diameter, and can be round or jagged.
i am sorry i can not answer the oxygen question because it is not all there.
(Help me pls)
What did Darwin find at the higher elevations of the Andes Mountains?
A) a fossil of a species similar to a giant armadillo
B) fossils of sloth-like organisms the size of elephants
C)fossilized shells of marine organisms
D)fossils of dinosaurs
Answer:
d.
Explanation:
next me answer my question ⁉️
Please anyone help please help ASAP ASAP please please help
Answer:
A
Explanation:
the 1st one is the answer
When an object is already in motion, why is energy required to stop it
When an object is already in motion then we require force to stop it because due to inertia , a body tends to remain in the state of motion unless an external force acts on it .This is in accordance with Newton's first law of motion or law of inertia of motion.
What is inertia ?Inertia is the tendency of a body to remain the way it is. It opposes any changes to its state of rest or motion.
The more is the mass of the body , the greater will be the inertia.
What is external force?External force is the force applied by external agents on the body.
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#SPJ2
How many times can a single gene from
the DNA strand be transcribed by mRNA?
A. It can never be transcribed.
B! It can be transcribed once.
C. It can be transcribed 1000s of times.
D. It can be transcribed twice.
How does blood travel from your heart to your limbs, such as your arms and legs?
A
through veins
B
through capillaries
C
through arteries
D
through carbon dioxide
Answer:
A
Explanation:
I'm not completley sure but veins go to every location in your body while capillaries and arteries are in designated areas.
Answer:
c
Explanation:
Which of the following is NOT true of a reaction that breaks a bond?
A. It creates low-energy products
B. It is what happens in cellular respiration
C. It is an endergonic reaction
Answer:
C
Explanation:
Endergonic reactions use energy to build bonds
Exergonic reactions release energy through breaking bonds
C. It is an endergonic reaction.
Endergonic v/s Exergonic:
In the exergonic reaction, the reactants are at a higher free energy level than the products (reaction goes energetically downhill) while In the endergonic reaction reaction, the reactants are at a lower free energy level than the products (reaction goes energetically uphill). Endergonic reactions use energy to build bonds while Exergonic reactions release energy through breaking bonds.When a bond breaks, it creates low-energy products.In cellular respiration, breaking of bond happens.Therefore, the statement which is NOT true for a reaction that breaks a bond is option C.
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duplicate this (dna)
aau cgg aua cgc uaa ggc uau
Answer:
aau cgg aua cgc uaa ggc uau
Explanation:
TY FOR THE POINTS
What is human fetal development? I need simple definition
Answer:
Fetal development is when many of it's organs become fully developed.
How do u merge two. Atoms together and. Make a nucleus atirficially
All organisms and the natural cycles of the earth operate:
one at a time
together
by themselves
without help
Answer:
Together
Explanation:
All of the organisms need each other to survive, all of the natural cycles are necessary to keep the Earth in balance.
Research the differences that exist between mitosis and binary fission. Identify at least one difference, and explain why it is significant.
The difference between mitosis and binary fission is that while mitosis occurs in eukaryotes and binary fission occurs in prokaryotes.
Mitosis and binary fission are forms of cell division that duplicate cells. Binary fission occurs in prokaryotes which are the cells that do not contain a nucleus.
On the other hand, mitosis occurs among the eukaryotes which are the cells that have a nucleus. Also, binary fission doesn't include spindle formation in its process which makes it faster than mitosis.
Read related link on:
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What are the 3 main ways to creating more sustainable energy paths?
Answer:
Sustainable energy requires a balanced composition between energy security, economic development, and environmental protection [5]. It encompasses energy systems, which are based on three core dimensions: energy security, social equity, and environmental impact mitigation
Explanation:
BRAINIEST ANSWER
For 7 and 6 I think it’s right I just want to make sure :)))
Just need someone to check my answers.
Answer:
you are correct on both of them
Explanation:
:) also can i get brainlest
Red-eyed tree frog eggs can hatch up to two days earlier than average when they detect vibrations. However, if they hatch more than two days earlier than expected due to vibrations, the embryos are typically not developed enough to survive outside of the egg. Explain how natural selection inhibited frog eggs from hatching any earlier than two days before expected hatching. Explain your answer in 1–2 sentences.
Natural selection inhibited the eggs from hatching before expected because this trait is negative in terms of survival and reproduction.
How does natural selection work?Natural selection is a natural process that causes evolution over time. This mechanism implies only individuals with traits that represent an advantage for survival and reproduction will prevail over time, which causes the traits of these individuals to become dominant.
For example, if in a population of deer male deer with big antlers are more likely to survive and reproduce, it is expected after some generations this trait is dominant.
How does natural selection work in the red-eyed tree frog case?In this situation, we know that if an egg hatches before time the embryo is not likely to survive. This means this trait is a disadvantage in terms of survival and reproduction, and due to this and as a result of natural selection the trait is not dominant.
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Why are food webs more realistic than food chains?
There are more animals
Most organisms eat more than one thing
Most organisms eat each other
Most organisms live on their own
Answer:
The correct answer is -most organisms eat more than one thing.
Explanation:
Food chains are the linear representation of easier visualization of trophic levels or movement of energy through the ecosystem. However, in reality, consumers can depend on more than one producer or other consumers for their food, and energy and interaction among these organisms are not that simple as it shows in the food chain. This makes the food webs to be more realistic than simple food chains.
The food web gives a better idea of the complexity of the various components and movement of energy in an ecosystem because the food webs is are the representation of interaction and interrelation of many different consumers and producers in an ecosystem.
Which element listed in the table above has an atomic mass of 79?
Answer: selenium Hope it helps
Explanation:
Why does the mitochondrial gene tree suggest a later split? Why the disparity between the nuclear gene tree?
this is the link: https://learn.genetics.utah.edu/content/evolution/bears/
Answer:
Why does the mitochondrial gene tree suggest a later split?The mitochondrial gene tree suggests a later split because it occurred hybridization later in time, with the transference of the brown bear mitochondrial genetic information to the polar bear population. So the mitochondrial gene tree exhibits a later divergence.
Why the disparity between the nuclear gene tree?Because the first divergence event of the common ancestor occurred 60,000 years ago, evidenced by nuclear DNI and mitochondrial DNI. However, 100,000 years ago, concerning the mitochondrial genetic material, the hybridization event defined a new more recent common ancestor between the two species.
Explanation:
The use of mitochondrial DNA might present a few problems that need to be considered in evolution studies. It involves only one locus, so it has some limitations when reconstructing history, especially if the locus went through any process, such as natural selection, bottleneck events, or its transference to another population due to hybridization. There is also a high possibility of an incomplete reconstruction of the population history if males and females have different dispersal patterns.
The most proper way of reconstructing history is by complementing mitochondrial information with nuclear genetic information and evaluating their concordancies.
In the exposed example, 600,000 years ago, the original species split into the polar bear and the brown bear. But 100,000 years ago, hybridization occurred between a brown bear female and a polar bear male. The offspring joined the polar bear population, carrying the female genetic information, nuclear and mitochondrial. With time, these individuals interbred with the polar bears, diluting the nuclear brown bear genetic information. However, females carrying the brown bear mitochondrial DNI seemed to be more successful reproductively than the polar bear females. The mitochondrial information, hence, has been in the population for many generations, until today. And this information came from a more recent common ancestor, compared with nuclear genetic information.
Trace the pathway of blood flow beginning with superior and inferior vena cava. Also, indicate what
kind of blood is contained in each part. (no links or I'll report
Answer:
look in the photo online it shows hope it helps
Explanation:
The amount of energy required to heat 0.5 kilograms of water until the temperature increases 12° C is about
Answer:
Q = 25104 / 4.184 = 6000 Calories or 6 Kcal
Explanation
Energy can be calculated by the equation
Q = m x Cp x delta T
where
m = mass = 0.5 kg
Cp = specific heat of water = 4184 J
Delta T = 12 degrees
Multiplying all
Q = 0.5 x 4184 x 12 = 25104 Joules
Converting it to Calories
Q = 25104 / 4.184 = 6000 Calories or 6 Kcal
3. Which of the following best describes Earth conditions during the Hadean?
A) covered with glaciers
B) hot with lots of volcanoes
C) cold and dry
D)active with many types of life
Answer:
b
Explanation:
B
Answer:
B) hot with lots of volcanoes
Explanation:
The Earth was very hot during the Hadean and did not yet have an oxygen rich atmosphere.
Which of the following is the best definition of Newton's theory of universal gravitation?
Every object is pulled downward with a force that increases as the height from which an object is dropped increases.
Every object is attracted to the Earth with a force that increases with increasing mass and distance.
Every object attracts every other object in the universe, with a force that increases as the objects' masses decrease and the distance between them increases.
Every object attracts every other object in the universe, with a force that increases as the objects' masses increase and the distance between them decreases.
the answer would be D!;
every object attracts every other object in the universe, with a force that increases as the objects' masses increase and the distance between them decreases.
The definition of Newton's theory of universal gravitation is : ( D )
Every object attracts every other object in the universe, with a force that increases as the objects' masses increase and the distance between them decreases.
Newton's theory of universal gravitation states that "every object attracts every other object in the universe with an attracting force that is proportional to the product of their masses and is inversely proportional to the square of their distances "
Therefore based on the Newton's theory of universal gravitation the best definition from the options given above is Every object attracts every other object in the universe, with a force that increases as the objects' masses increase and the distance between them decreases.
Hence we can conclude that Every object attracts every other object in the universe, with a force that increases as the objects' masses increase and the distance between them decreases.
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What were the sources of genetic variation in the population?
Answer:That is, the fraction 48 can be converted to decimal by dividing 4 by 8 . It can be converted to percent by multiplying the3 this is kne f3rcdwecdecfefvrgbvgrbv
Explanation:
and this is sound nba moruf nba mdidd
In the kool aid mixture, what must there be more of, hydrogen ions or hydroxide ions?
Answer:
H+, hydrogen ions
What is the purpose of nitrogen-fixing bacteria?
Answer: The symbiotic nitrogen-fixing bacteria invade the root hairs of host plants, where they multiply and stimulate formation of root nodules, enlargements of plant cells and bacteria in intimate association. Within the nodules the bacteria convert free nitrogen to ammonia, which the host plant utilizes for its development. brainliest?
Explanation:
Answer:
Within the nodules the bacteria convert free nitrogen to ammonia, which the host plant utilizes for its development.
Explanation:
Which of the following statements is false?
A. Disruptions in an ecosystem are normal and natural changes.
B. Disruptions in an ecosystem are only caused by tornadoes, hurricanes, and floods.
C. Disruptions in an ecosystem are caused by both human activity and environmental disturbances.
D. Ecosystems are complex, interactive systems that include both biotic and abiotic components of the environment.
Answer:B
Explanation:
Common sense ♀️
Answer:
c
Explanation:
humans can also disrupt the ecosystem as well as natural causes
Describe the motion of the molecules in the cold water in terms of their kinetic energy.
Answer:
As ice melts into water kinetic energy is being added to the particles.This causes them to be "excited" and they break the bonds that hold them together as a solid resulting in a change of state:solid -> liquid.