Answer:
The term evolution is best described as. a process of change in a population through time.
Evolution is defined as the process of growth and development or the theory that organisms have grown and developed from past organisms. An example of evolution is how cell phones have changed over time.
HOPE IT HELPS : D
Explanation:
Evolution is a very important phenomenon, which is the change in the characteristics of species of organisms over the course of life for the purpose of better survival.
What is evolution?The term “evolution” is best described as the process of gradual and continuous change in the inherited characteristics of a species over many generations.
This change is driven by mechanisms such as natural selection, mutation, and genetic drift, which lead to variation in traits within a population over time.
The theory of evolution by natural selection is widely accepted among scientists as the best explanation for the diversity of life on Earth. In addition to its importance in understanding the development of life on Earth, the concept of evolution has far-reaching implications for many areas of study, including medicine, agriculture, and conservation biology.
Learn more about evolution, here:
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Which do you think is better for the environment: paper or plastic
Answer:
I think it is plastic
Explanation:
even though it take 400 years for a paper bag to decompose, people use more plastic.
Answer:
Paper is better for environment
Explanation:
Paper is because it decomposes much more quickly than plastic, and because of that it is less likely to be a source of danger and will not pose a risk to wildlife. Paper is also more recyclable, while plastic can take between 400 and 1,000 years to decompose.
Hope that helps.
A student is given five samples and told they are lysine (an amino acid), lactose (a disaccharide), insulin (a protein hormone), RNA and fat. The samples are in test tubes marked 1-5, but the student doesn't know which compound is in which tube. The student is instructed to identify the contents of each tube. Base on these data, identify what is in each tube. In her first test, she tries to hydrolyze a portion of the contents of each tube. Hydrolysis occurs in all tubes except tube 3. In the next test, she finds that tubes 1, 2, and 3 are positive for nitrogen but only tube 2 gives a positive result for the presence of sulfur. In the next test the student shows that the compound in tube 1 contains a high percentage of phosphate. In the final test the student shows that compound 5 is hydrophobic. Base on these data, identify what is in each tube. 1 2 3 4 5 A. lactose B. RNA C. lysine D. fat
Answer:
1. RNA 2. Insulin 3. Lysine 4. Lactose 5. Fat
Explanation:
RNA contains both nitrogen and phosphate hence it is the substance in tube 1.
Insulin being a protein contains sulfur hence it is the substance in tube 2.
Lysine does not hydrolyse hence it is the substance in tube 3.
Fat is hydrophobic hence it is the substance in tube 5.
Since lactose does hydrolyse and because the rest have been identified, it must be the substance in tube 4.
Based on these data, each tube is identified as:
tube 1: RNAtube 2: Insulintube 3: Lysinetube 4: Lactosetube 5: Fat1. first testHydrolysis doesn't occur in lysine so, the 3rd tube contains lysine.
2. second testNitrogen is present in Insulin(in amino acids), RNA(in nucleotides), and Lysine. Insulin consists of two polypeptide chains (A and B) which are joined by sulfur bonds. So, 2nd tube contains insulin.
3. third testIn RNA, nucleotides are present which consists of phosphate groups. Adjacent nucleotides are joined together by phosphodiester bonds. So, 1st tube contains RNA
5. 4th testFatty acids are Hydrophobic due to the presence of long hydrocarbon chains. So, 5th tube contains Fat.
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Are enzymes in saliva a example of a structural adaption or physiological?
Answer:
structural adaptation
Answer:
Adaptational
Explanation:
It needs to adapt to the different variety of food and drinks.
Consider these three scientific statements
1. The inherited traits of plant, animal, and microbial populations change through time because of differential reproductive success patterns, which are influenced by the way individual organisms interact with their environment.
2. If a certain culture of bacteria is subjected to more ultraviolet radiation than another culture, Then it's reproductive success rate will be reduced.
3. In sexual reproduction, Recessive alleles are always masked by dominant alleles. in other words, the traits of a Recessive allele will not be expressed if a dominant allele is present.
These statements have a lot in common. Each statement is testable, each describes a potential realishionship between observable factors, and each deals with a different aspect of reproduction or inheritance. However, one of the statements is typical of a scientific hypothesis, one is typical of a scientific theory, and one is typical of a scientific law.
Which statement is a hypothesis, which is a theory, and which is a law? "Justify your anwsers"
Answer: 1. Scientific theory
2. Scientific hypothesis
3. Scientific law
Explanation:
The scientific theory can be defined as the aspects of the natural world that are tested and proofed by the scientific methods, involving the observations, measurements and evaluation of the outcome. The scientific theory can be changed with new ideas or evidences. The first statement is a scientific theory because the microbial population may change due to the fact that how microbes interact rather than restricting to the differential reproductive success.
The scientific hypothesis can be defined as the statement that is required to be tested or verified by scientific method. It is based on presumption. The second statement is the example of scientific hypothesis because it is beginning with "if" here it is presumed that if the culture is exposed to ultraviolet radiation then reproductive success rate will be reduced.
The scientific law is based upon facts or evidences obtain after experimental trails or applying the scientific methodology. This cannot be changed with time. The third statement is the Mendel's law of dominance.
Find the curved surface area, total surface area and volume of the following cylinders.
(a)height is10 cm and radius is7cm
(b)height is 20cm and diameter is 14cm
Answer:
Explanation:
Curved S.A-πdh
Volume=πdh
22/7 ×14×10=440cm²
22/7×7×7×10=1540cm³
22/7×14x2=88cm²
440+88=528cm²
B
Csa 22/7×20×14=880cm²
Volume 22/7×7×7×20=3080cm³
Total sa
2Dπ=22/7×14×2=88cm2
88+880= 768cm²
which statement best describes the scientific process
Answer:
Where is the statement
Explanation:
Answer:
best answer
Explanation:
Make an observation.
Ask a question.
Form a hypothesis, or testable explanation.
Make a prediction based on the hypothesis.
Test the prediction.
Iterate: use the results to make new hypotheses or predictions.
Indicate whether each effect of climate change on Alberta would be expected (E) or would not be expected (NE). Place your answer in the blank space given.
a. more stable weather conditions
b. more wheat and less canola grown as crops
c. greater threat to forests from insect pests
d. greater biodiversity of wetland species
e. better agricultural conditions in northern Alberta
f. improved air quality in urban areas
thanks!
Answer:
a. more stable weather conditions --- NE
b. more wheat and less canola grown as crops ---E
c. greater threat to forests from insect pests ----E
d. greater biodiversity of wetland species ----E
e. better agricultural conditions in northern Alberta ----E
f. improved air quality in urban areas-----NE
Explanation:
The climate of Alberto change with the increase in temperature which disturb the weather condition of the region. This increase in temperature decreases the production of wheat crop so more wheat crop is cultivated for fulfilling the needs. This increase in temperature make the environment more suitable for different organisms. The climate is cold during winter so increase in temperature causes condition suitable for agriculture in northern Alberta. Improved air quality in urban areas is not possible due to more production of carbondioxide gas which leads to increase in temperature.
what is the name of the protective structure that forms around an embryo
Answer:
a baby or Amnion
Explanation:
Select the correct answer.
How many particles are in a mole?
In photosynthesis, plants use _______ and release ________. *
A. carbon dioxide, oxygen
B. oxygen, carbon dioxide
Answer:
A. carbon dioxide, oxygen
Explanation:
Photosynthesis is a process that certain organisms (plants, algae and some bacteria) undergo to produce their own food. The equation for photosynthesis is:
water + carbon dioxide + light energy —> glucose + oxygen
In photosynthesis, the plant takes water, carbon dioxide and light energy from the sun and turns it into glucose (sugar, or the food) and oxygen.
Therefore, the correct answer is A. carbon dioxide, oxygen. The plant will use carbon dioxide and then release oxygen as a waste product.
What kind of genetic factors affect algae growth?
ANSWER :
Algae prefer stable conditions. Low water levels create slower, more uniform conditions that encourage algae growth. Warmer water leads to increased algae growth. The temperature of the water may even favor the growth of certain types of algae over others. Nutrients, like nitrogen and phosphorus, fuel algae growth; however, excess nutrients from human activities can exacerbate algae blooms.Which of the following did you include in your
response?
Organs perform specific functions in the body
to keep it alive.
Organelles perform specific functions in cells
to keep them alive.
Answer:
that is chloroplasts found in plant cell and it contains chlorophyll or green pigment
Answer:
Organs perform specific functions in the body to keep it alive.
Explanation:
how has paraquat stopped the algae from making atp nadph and sugars
Answer:
This is by disrupting the mechanisms of photosynthesis.Paraquat is an herbicide. A photosynthesis inhibiting herbicides. In the light dependent reaction, It acts as oxidizing agent by accepting electrons from Photo system I. and lose these electrons to oxygen molecules which becomes oxidized.
Therefore, disrupting the electron transport chain.With the electron transport chain disrupted, PMF is inhibited, electrochemical gradients for generating energy for ATPs synthesis, by ATPase synthase enzyme is blocked.
Therefore, ATPs synthesis is prevented. With this, Calvin Cycle is blocked, so no CHO id formed. With lack of electron transport chain, NADPH will not be formed. .
Explanation:
En que consisten las siguientes interacciones bioticas de las relaciones entre organismos: DEPREDACION, PARASITISMO, MUTUALISMO, COOPERACION, SIMBIOSIS, COMPETENCIA, COMENSALISMO, AMENSALISMO
Answer:
La depredación implica la interacción entre un depredador y una presa. El parasitismo ocurre entre 2 organismos diferentes donde un parásito se alimenta del huésped hasta que el huésped es destruido, el mutualismo ocurre es una forma de relación donde ambos organismos de diferentes especies se benefician. La cooperación se produce cuando los organismos trabajan juntos como un equipo para lograr objetivos comunes, como derribar a un gran depredador. En la simbiosis ocurre en diferentes organismos donde ambos se benefician o uno se beneficia o ninguno se beneficia a medida que interactúan. La competencia es la capacidad de un organismo para prosperar en entornos difíciles. El comensalismo es un tipo de relación que ocurre entre organismos donde uno se beneficia y el otro no se ve perjudicado. El amensalismo ocurre entre diferentes especies de organismos en una relación donde uno es destruido y el otro prospera.
Explanation:
La depredación ocurre en la cadena alimentaria donde los organismos más pequeños son consumidos por los más grandes en la cadena alimentaria. El depredador no puede sobrevivir si hay una reducción en la población de presas. Un ejemplo se ve en un león y un ciervo. En el parasitismo, el parásito solo puede sobrevivir cuando el huésped está vivo. Una vez que el huésped muere, el parásito muere con él. El parásito deriva todo su sustento del huésped hasta que el huésped es destruido. Ejemplo de garrapatas en perros. En mutualismo, ambos organismos de diferentes especies en relación obtienen los mismos beneficios. Un ejemplo es el del pájaro picador y la cebra, donde el pájaro picador obtiene su alimento de la cebra y la cebra controla sus plagas. La cooperación se produce entre las mismas especies que trabajan juntas para derribar presas más grandes. Se observa un ejemplo entre las hormigas que derriban una cucaracha. En el caso de la simbiosis, podría ser uno de los 4 tipos: comensalismo, mutualismo, parasitismo o endo / ectosimbiosis. Aquí los organismos de diferentes especies trabajan para lograr objetivos divergentes que a veces se ayudan mutuamente y otras veces se daña. La competencia se ve cuando un organismo posee características especiales que lo ayudan a sobrevivir en ambientes hostiles. Por ejemplo, algunas bacterias poseen cápsulas que les ayudan a almacenar alimentos y sobrevivir largos períodos de deshidratación, así como la presencia de determinantes de resistencia a los antibióticos que pueden ayudarlos a sobrevivir a un ataque de antibióticos. En el comensalismo, una especie vive de otra, pero la otra no sufre daños. Un ejemplo típico son las aves que viven en huecos de árboles. En el amensalismo, la presencia de una especie de organismo inhibe el crecimiento de otro. Un ejemplo es el de las malas hierbas en una granja de maíz. Las malas hierbas ahogan la planta hasta que se destruye para que puedan prosperar.
Which list shows the levels of organization of an organism in hierarchical order from left to right, from the least complex to the most complex?
HELLO EVERYONE
Which statement is correct?
A. The number of electrons of a neutral atom always equals the number of protons.
B. Atomic weight is identical to atomic mass.
C. The number of neutrons always equals the number of protons.
D. The number of neutrons always equals the number of electrons.
Answer:
A. The number of electrons of a neutral atom always equals the number of protons.
Explanation:
For Example
Sodium (Na)
Atomic Number = 11
number of protons and electrons = 11
right auricle is bigger than left auricle why
Explanation:
Veins carry deoxygenated blood from different parts of the body to our heart. ... Since a larger volume of blood is collected in the right auricle than that of the left auricle, right auricle is larger than the left auricle.
Which choice describes a community?
a forest of birds, insects, and squirrels
a desert of sand, rocks, hawks, and snakes
a hole in which a snake lives
the desert
Answer:a forest of birds, insects, and squirrels
Explanation: A community consists of only biotic (living) factors with multiple different populations (different groups of animals)
molecules helped by protein; move insoluble molecules across plasma membrane:
phagocytosis
active transport
passive diffusion
facilitated diffusion
pinocytosis
Answer:
I think its facilitated diffusion.
Explanation:
Hope it helps out :)))Power is measured in _______?
Answer:
joules
Explanation:
i think
Easy 62 Points (will give brainliest)
Short Answer
Answer the following questions in complete sentences.
26. Outline the relationships between forces and motion.
27. Explain why it is easier to move a heavy box on a dolly than it is to slide the box over the ground.
28. Identify two forces that come into play when you jump on a trampoline. Explain how the forces work.
Answer:
26. The relationship between force and motion is that force affects the state of motion. It can cause motion to happen and it can cause it to stop.
28. Forces of action and reaction: each time you push down on the trampoline, an equal and opposite reaction will push back.
i have not answered 27 because am not quite sure and i don't want to mislead you.
hope this helps.
Identify the interaction described below Two male deer will fight each other for the opportunity to mate with a female.
An owl catches a mouse and eats it for dinner.
Answer: competition
Explanation: when its a fight its a competition
Answer:
1.=competition
2.=predation
Explanation:
help please! our existing body of scientific knowledge was developed
Answer:
The answer should be C: mostly in the 20th century
Explanation:
Answer: D
Explanation: Throughout history
what is reflex action?
If you were standing at Earth's geographic North Pole and holding a compass, the magnetic north pole of the compass needle would be pointing _____. A. eastward B. westward C. toward the geographic North Pole D. toward the geographic South Pole
Answer:
C
Explanation:
this is because of the magnetic property of the rocks beneath the north pole , hence the magnetic north will always point towards where the magnetic north of the rocks are
In light-independent reactions, ________ and ________ are used to react.
A. carbon dioxide and oxygen
B. oxygen and hydrogen
C. carbon dioxide and hydrogen
Answer:
sorry idk the answer :(
but what I know is that ;The light-independent reactions use the ATP and NADPH from the light-dependent reactions .
Explanation:
Hope it helps you !
Answer:
Answer - A. carbon dioxide and oxygen
Explanation:
In light-independent reactions, carbon dioxide and oxygen are used to react.
Are all genes that are passed on advantageous? Why or Why not?
Answer:
no because certain genes could be bad and negatively affect the thing with those genes
Why don't ecosystems systems exist between fresh and salt water systems?
Answer: The transition from salt to fresh water is turbulent, vulnerable, and incredibly bountiful
Why do different organisms have similar bones in the same place?
Answer:
they all share a common ancestor. (more info below)
Explanation:
Some organisms have anatomical structures that are very similar in embryological development and form, but very different in function. Such structures indicate an evolutionary relationship and a common ancestor.
hope this helped!
1. What relationship between accumulation and ablation is necessary for the ice front of a glacier to advance?
Answer:
As long as snow accumulation equals or is greater than melt and ablation, a glacier will remain in balance or even grow. Once winter snowfall decreases, or summer melt increases, the glacier will begin to retreat.
Explanation:
