Answer:
The type of cellular transport that requires energy is active transport (option b).
Explanation:
Active transport —unlike passive transport— involves the passage of molecules or substances through the membrane against a concentration gradient, a process that requires the use of energy.
In the case of active transport the energy for the process comes from the ATP molecule and the mechanism for this to be possible is by means of an ATPase incorporated into the transporter.
The transport of glucose and the sodium-potassium and calcium pumps are examples of this type of transport.
The other options are not correct because simple diffusion, facilitated diffusion and osmosis are passive transport mechanisms that do not require the use of energy.
A sample of Carbon-14 originally contained 100 g. After three half-lives have
passed, how much Carbon-14 is left?
Answer:
After 3 half lives 12.5 g of C-14 left
Explanation:
Given data:
Mass of C-14 = 100 g
After 3 half lives mass left = ?
Solution:
At time zero = 100 g
At first half life = 100 g/2 = 50 g
At second half life = 50 g/ 2 = 25 g
At third half life = 25 g/2 = 12.5 g
Thus, after 3 half lives 12.5 g of C-14 left.
5 points
Photosynthesis and cellular respiration are sometimes called "opposite
reactions." A. Complete the chart by listing the reactants and products of
photosynthesis and cellular respiration. B. Write a one-sentence summary
explaining why photosynthesis and cellular respiration are often
considered opposite reactions. *
PHOTOSYNTHESIS
RESPIRATION
2 CD
GLYCOLYSIS
LIGHT DEPENDENT
REACTIONS
2 PYRUVATE 2
ATMOSPHERE
0.
CO.
KREB'S
x 2
CYCLE
CALVIN
CYCLE
386)
x2
1 GLICOSE
ELECTRON
TRANSPORT CHAIN
I can answer the first part for you :D
Photosynthesis: CO2 + H2O + Sunlight = O2 + H2O + Glucose
Cellular respiration: O2 + H2O + Glucose = CO2 + H2O + ATP
During an experiment to determine if people with more symmetrical body features have a lower incidence of disease, a researcher first measures the length of several bones in the subject's hands and arms. The device used to measure length does not display a readout of the measurement taken. Instead, a wire connects the measuring device to a computer that records the data. The computer monitor is kept out of sight of the subject and the researcher. Why is such an elaborate device used?a. So that the subject will not know if he or she is part of the control group.b. So that the experiment will be repeatable.c. So that the subject will not be injured by the experiment.d. So that the identity of the subject will remain anonymous.e. So that the measurements are not biased by the researcher.
Answer:
e
Explanation:
The main reason such an elaborate device was used would be to eliminate any element of bias by the researcher.
It is important to eliminate biases when taking measurements so as to ensure the accuracy of the data and the overall outcome of the experiment. If a simpler device had been used in which the researcher manually records the length of the bones, it is possible to knowingly or unknowingly introduce biases or random error into the experiment which will impact the integrity of the data and the outcome of the experiment.
The correct option is e.
Yellow light travels through a certain glass block at a speed of 3 * 108 m/s . The wavelength of the light in this glass is 3.81 * 10 - 7m . What is the frequency?
Answer:
f = 7.87×10¹⁴ Hz
Explanation:
Given data:
Speed of light = 3×10⁸ m/s
Wavelength of light = 3.81 ×10⁻⁷ m
Frequency of light = ?
Solution:
Formula:
Speed of wave = wavelength × frequency
Now we will put the values in formula.
3×10⁸ m/s = 3.81 ×10⁻⁷ m × f
f = 3×10⁸ m/s / 3.81 ×10⁻⁷ m
f = 0.787 ×10¹⁵ s⁻¹
s⁻¹ = Hz
f = 0.787 ×10¹⁵ Hz
f = 7.87×10¹⁴ Hz
what are
principle basis on classification
Answer:
Classification is a systematic ordering of the object of research, in this case, ecosystems at the earth's surface or, in other words: landscape units as 'holons'. As for general principles of classification, we can learn a lot from the best-known classification, the taxonomical classification of species.
Explanation:
what part of your home would be like the mitochondria of the cell?
Answer: the fuse box
Explanation: it powers all the electricity in the house
Answer:
The cell wall because it protects you.
Explanation:
true or false farming refers to the cultivation of crop
true because the devotion of farming is growing crops or in other words cultivation so it’s true
Give an example of active transport. Explain what occurs during this process, including the type of substances that is being transported, the concentration gradient, and any structures in the cell membrane or within the cell that are used.
There are two species of squirrel in the United Kingdom: red squirrels and gray squirrels. Red squirrels are native to the United Kingdom while gray squirrels were introduced to the United Kingdom from North America in 1876. Figure 1 show the distributions of the two squirrel species in 1945 and 2010.
Answer:
The grey squirrel has increased their rate of emigration to the UK
The grey squirrel has increased their rate of emigration to the UK.
What is emigration?Emigration is the act of relocating away from a resident country or place of residence (to permanently leave a country). Contrarily, immigration refers to the flow of individuals from one country into another (to permanently move to a country).
A migrant leaves their home nation and moves to their adopted one. Emigration and immigration thus both describe migration, but from the perspectives of various nations.
Demographers look at the push and pull factors that cause people to be drawn to one place and pushed away from another. Desires to escape unfavorable situations, such as scarcity of land or employment opportunities, or unfair treatment, are possible.
Therefore, The grey squirrel has increased their rate of emigration to the UK.
To learn more about emigration, refer to the link:
https://brainly.com/question/2574650
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A scientific theory
A)is like a guess
B)can never be disproven
C)has not been disproven, but could be
D)has been proven 100%
Answer:
the answer should be c
Explanation:
Answer:
it is c.
Explanation:
because it has never been disproven i know alot because in science I am studing it
where did genetic engineering come from
someone help plzz brainliest
how does increasing the size of the habitat affect carrying? explain your answer. recall the scenarios: 0-15 years, little land; 15-30 tears, moderate land;30-45 years, ample land
plzzz helpp
I meant years not tears
Answer:
so basically carrying capacity is "the amount of organisms a specific environment can support", so if the environment is increased, most likely, more space and food will be available, which means the environment can hold more organisms, causing the carrying capacity to increase
Explanation:
what I just said lol
Answer:
Increasing the habitat size will increase the carrying capacity. Carrying capacity is the maximum amount of organisms a habitat and its resources can carry. So if the habitat expands and more resources become available, the population would expand. As you can see for the first 15 years, when it was the little land, there was only about () rabbits, but as the land grew throughout the years, the rabbit population grew. 15-30 years with moderate land had around () rabbits, and the ample land in years 30-45 had around () rabbits, a little over two times the amount the little land had.
Explanation:
just fill in the ()s with the numbers that show on the graph. This is kinda late but hopefully it'll help anyone who needs it.
In a chemical change the atoms in compounds are rearranged to make new and different compounds.
True
False
PLEASE HELP ASAP
Answer:
its true
Explanation:
A chemical change alters the composition of the original matter. Different elements or compounds are present at the end of the chemical change. The atoms in compounds are rearranged to make new and different compounds.
Artificial selection has given us * A. The many species of wild cats B. Breeds of domesticated dogs C. Various human societies D. The many rainforest species
Answer:
b. breeds 0f domesticated dogs
Explanation:
I think its b.
Answer:
c. Breeds of domesticated dogs
In other cases, researchers use natural experiments in which the dependent variable (typically a measure of organism health) is measured under differing contexts that are not manipulated. Say, for example, that an accidental chemical spill contaminates five ponds. To determine the possible effects of the toxic chemical on frogs, a researcher could compare the hatching rate of frog eggs laid in those five ponds to the hatching rate of eggs laid in five uncontaminated ponds nearby. This would be an example of a natural experiment because concentrations of the toxic chemical in the ponds were not controlled by the experimenter, but rather resulted from the chemical spill.
Drag type of experiment on the left to the example of experiment on the right.
A. Natural
B. Manipulative
1. ______: Blood concentrations of BPA in college students are compared to their recent consumption of canned food items
2. _____: The feeding behavior of fish in streams that receive acidic runoff from strip mines is compared to the feeding behavior of fish in unaffected streams.
3. _____: The deformity rate in baby birds from nests in pesticide-sprayed fields is compared to the deformity rate in birds from nests in unsprayed fields.
4 ______: Tumor development is compared in mice exposed to five dosages of a known carcinogen in the laboratory.
5. ______: Foraging activity levels are compared in tadpoles exposed to four concentrations of toxic metals in the laboratory.
6. ______: Growth of corn plants is compared in field plots sprayed with three different dosage:s of weed killer 7.
7. ______: BPA concentrations in the urine of people with diabetes are compared to BPA concentrations in the urine of people without diabetes
Answer:
1. Natural
2. Natural
3. Manipulative
4. Manipulative
5. Manipulative
6. Manipulative
7. Natural
Explanation:
1. Checking the blood concentration of BPA in college students in relation to their recent consumption of canned food items is a natural experiment because BPA concentration in blood is not artificially controlled by any means.
2. Comparing the feeding behavior of fish in streams with acidic runoff to that of fish in an unaffected stream is a natural experiment due to the fact that the acidity of the stream is not artificially controlled in any way by the experimenter.
3. Checking the deformity rate in baby birds from nests in pesticide-sprayed fields and that from unsprayed fields would require some manipulations except a sprayed and unsprayed one already existed long before the experiment was given birth to. Otherwise, the sprayed field might need to be artificially created just for the purpose of the experiment.
4. A known carcinogen would need to be administered to a group of the mice. This is manipulative.
5. The tadpoles would need to be artificially exposed to the toxic metals in the laboratory. Manipulative
6. The spraying would need to be carried out artificially in order for the comparison to be made. Manipulative
7. People with diabetes cannot be artificially created. They must have existed naturally long before the experimental design. Natural
the number of consumer can never exceed the number of producer in nature why
Answer:
The number of consumer can never exceed the number of producer in nature because there is a limited amount of producer in the nature so the consumers is the one who eats a producer !
When the number of consumers increases, producers disappear due to overconsumption and consumers disappear due to lack of food and the ecosystem is destroyed. Therefore, in nature the number of consumers can never exceed the number of producers.
What are Producers and Consumers?Producers are plants that make their own food, the energy they need to grow, reproduce, and survive. They are making their own food which makes them special. These are the only living things on Earth that can make their own source of food energy with the help of sunlight, water and air.
Consumers make up the upper trophic level. Unlike producers, they cannot make their own food. They obtain their food by eating plants or other animals, while some eat both.
Scientists distinguish between several types of consumers. Primary consumers form the second trophic level.
Thus, when the number of consumers increases, producers disappear due to overconsumption and consumers disappear due to lack of food and the ecosystem is destroyed. Therefore, in nature the number of consumers can never exceed the number of producers.
Learn more about Producers, here:
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In which kind of relationship one organism benefits and the other has no affect?
1.Commensalism
2.Amensalism
3.Mutualism
4.Parasitism
Answer:
commensalism
Explanation:
one benefits and the other derives neither benefit nor harm.
What is the final product of transcription
A particle can infect humans and make them sick. It attaches to a host cell and injects its RNA, which the host uses to make proteins for the particle. This particle cannot reproduce on its own and can only copy itself by using the machinery of the host.
Which explains whether the particle described is a virus or a cell?
Answer: C. The particle is a virus because it has genetic information and can infect humans.
Explanation: edmentum answer coreect
After basketball practice, Tyler began feeling a sharp pain in his knee. He visited the doctor and found out that he had torn one of the many ligaments in his knee. Which of the following best describes the function of the ligament he injured?Immersive Reader
(1 Point)
A. Connecting cartilage to muscles
B. Cushioning the ends of bones
C. Connecting bones to other bones
D. Connecting muscles to bone
Answer:
C. Connecting bones to other bones
Explanation:
Ligament is one of the connective tissues in living systems whose primary function is to connect bones to other bones. Ligaments are made up of a short band of tough fibre making it adapted to that connective function.
In this question involving Tyler who is diagnosed to have torn one of his knee ligaments, it means he has torn one of the many connective tissues that connects his bones to another bone in the knee.
Choose all the answers that apply. The flu _____. is generally milder than a cold is an air-borne illness can cause serious complications is primarily caused by the rhinovirus can be prevented through vaccination
Answer: is an airborne illness...and can be prevented by vaccination that's all i know, Hoped i helped!
~Zachary
Answer:
I know only 1 of the answer but I ink there is another 1 I know but I don't
remember what and its sneezing and coughing
EXTRA: Also, your girl is waiting for you lol XD
What are some of the ways that parasites have adapted to transmission between hosts and resisting the host’s attempts to get rid of the parasite? How do these particular developments help the parasite?
A lot of your personality comes from ______________________ rather than your DNA.
Answer:
Inheritance
Explanation:
Many believe that personality traits can come from how you are treated when you are a child while that can play a part in a personality trait that's not the full truth. Personality traits are inherited from your parents so if your father is stubborn but not your mother there's a 50% chance that the child may be stubborn like his or her father.
Hope this helps.
Cells are typically
much smaller.
Wich one is it prokaryotic and eukaryotic
Answer:
eukaryotic!
Explanation:
prokaryotic cells are significantly smaller than eukaryotic cells :)
Answer:
Prokaryotic cell
Explanation:
they are just tiny :)
NEED ASAP WILL GIVE 40 POINTS!!!
What type of conditions might effect crossing over in Sordaria?
Answer:
To observe crossing over in Sordaria, one must make hybrids between wild-type and mutant strains of Sordaria. ... When mycelia of these two different strains come together and undergo meiosis and then mitosis, the asci that develop will contain four black ascospores and four tan ascospores.
Explanation:
FORENSIC SCIENCE!
Which of the following is an example of individual evidence when it comes to carpet?
Group of answer choices
fiber length
dye composition
the carpet padding
the type of fiber
Answer: the carpet padding
Explanation:
Individual evidences are simply refered to as properties of physical evidence that has to a high degree of certainty for a common source. For individual evidences, the suspect is being narrowed down to a single individual. Examples include fingerprints, toolmarks etc.
In the question above, the example of individual evidence when it comes to carpet will be the carpet padding. While other options such as fiber length, dye composition and the type of fiber can still relate to other things, carpet padding narrows it down to carpet.
Groups Of similar organisms within a species are called
From smallest to largest, the levels are species, genus, family, order, class, phylum, and kingdom. Each of the ranking levels is called a taxon. Just as a genus is a group of similar species, a family is a group of similar genera. An order is a group of similar families.
Hope this helps!
i’m very confused on this question so i rlly need help asap
Answer:
A tall, green plant with dominant alleles for both characteristics have a genotype TTGG and its phenotype is tall and green.
Explanation:
For a given trait, the dominant allele of the allelic pair is represented in capital letters (T and G), while the recessive allele is represented in small letters (t and g).
In the case of this plant, whose phenotype is tall and green —both dominant characteristics— and considered pure because both alleles are dominant, the genotype is TTGG.
In the case of a hybrid, the phenotype would be the same but the genotype would be TtGg. A recessive phenotype would be ttgg.If the endoplasmic reticulum were removed from the cell,which organelle would not be able to function properly, and why
Answer:
Golgi apparatus
Explanation:
Because it packages proteins received from the endoplasmic reticulum.
River deltas are?
1, caused by the movement of tectonic plates.
2, areas of infertile, rock soil.
3, formed by erosion.
4, created by seafloor spreading.
Answer:
2
Explanation:
I think that the answer is 2 because river deltas are formed when sediments are moved somewhere else in order to make the delta. So is there are areas of infertile rock soil it could be easily moved to make a delta