Answers
The correct sequence of structures that the light must pass through in order to reach the photoreceptors of the human eye is: cornea → pupil→ lens→ retina.
Photoreceptors are the special neuron cells that are involved with the vision of the eyes. There are two types of photoreceptors in humans: rods and cones. The rods are responsible for the vision during the night or dark. And the cones are responsible for the day or light vision.
Retina is the light-sensitive area of the eye. It receives the images of the object and sends them to the brain in the form of electrical signals. These signals are sent by the retina through the optic nerve.
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Related Questions
Which of the following are examples of a renewable resource? Choose ALL that apply.
coal
sunlight
natural gas
wind
nuclear power
biomass
petroleum
plants (trees, cotton, corn)
Answers
Answer:Most of our energy is nonrenewable · Petroleum · Hydrocarbon gas liquids · Natural gas · Coal · Nuclear energy.
Explanation:
In this assignment, you will apply concepts of statistics and probability to answer questions about how environmental factors affect the variation and distribution of expressed traits in a population.
Background Information:
Genetic and environmental factors affect which traits are passed on from parent to offspring over generations and how they are passed on. Favorable traits for a given environment are passed on from parent to offspring. Unfavorable traits are selected against and inherited less frequently over time because they do not promote survival and reproduction.
Answers
Answer:
Those traits passed from parents to offspring which has high probability.
Explanation:
Traits are passed on from parent to offspring over generations through the process of reproduction i. e. sexual reproduction. The traits are passed on from parent to offspring and if good traits are dominant so the traits are appeared in the structure of that organism due to dominant allele while on the other hand, if the bad traits are dominant so there is high probability of bad traits to be appeared in the organism.
The statement 'unfavorable traits are selected against and inherited less frequently over time because they do not promote survival and reproduction' is TRUE.
Natural selection refers to the differential survival of reproduction of organisms better adapted to the environmental condition in which they live.The genes associated with a higher adaptive fitness (i.e., better traits) will have more chance to be passed across generations.These highly adaptive genes will increase the chances of survival and reproduction of the organisms that carry them.In conclusion, the statement 'unfavorable traits are selected against and inherited less frequently over time because they do not promote survival and reproduction' is TRUE.
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Name three different cells in a leaf that contain chloroplast. Please help
Answers
The LEAF as a photosynthetic organ includes the following cells which contains CHLOROPLASTS
• the palisade mesophyll
• the spongy mesophyll and
• the stomatal guard cells
The LEAFS are the main organ of photosynthesis. Photosynthesis is the process by which green plants manufacture their food in the presence of sunlight. This takes place in the CHLOROPLASTS of these plant. CHLOROPLASTS are structures that contains chlorophyll which traps in energy from the sunlight.
The mesophyll tissues are located between the upper and the lower epidermis of the leaf. The palisade mesophyll, which is found at the upper part, contains numerous CHLOROPLASTS and is the main site of photosynthesis in the leaf.
The spongy mesophyll is located at the lower part of the epidermis. They are irregularly arranged with air spaces between them which are linked to the stomatal openings. They also contain CHLOROPLASTS.
The stomatal guard cells are a pair of bean-shaped cells which controls the opening and closing of stomata. These cells contains CHLOROPLASTS which contributes to the movement of stomata.
Therefore the three different cells of the leaf that contains CHLOROPLASTS are the palisade mesophyll, the spongy mesophyll and the stomatal guard cells.
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PLSS HELP ,, - - - A group of students were testing different insulators. They used three metal cans, one wrapped with bubble wrap, a second with a paper towel, and third unwrapped. Equal amounts of hot water were poured into each can and the temperature was noted at definite time intervals. The data is shown in the table.
From the data what can you conclude which is the best insulator?
Aluminum can wrapped with paper towel
Just the aluminum can
Aluminum can wrapped with bubble wrap
Answers
Answer:
Without the table, I can't be 100% certain, but I'm sure that your answer is C). It would only make sense, considering the fact that if bubble wrap is being used, you've put 2 layers of plastic and one layer of trapped air between the can and the hand of those who hold it, thus reducing the amount of thermal energy transfer.
all living things need _____ to live,and energy comes from ____.
Answers
Answer:
energy; sun or food
Explanation:
If you are taking about animals, the second answer is food i believe.
If you are talking about plants, then it is sun.
But technically, sun helps us as humans and it also helps animals a lot with different things. So maybe just sun. Let me know.
Hope this helps!
DNA is divided into several segments, each will provide the genetic code for a different trait. What is this segment known as?
Question 4 options:
nucleotide
gene
chromosome
centromere
Answers
Answer:
gene
Explanation:
......... ..... .... ..
meiosis takes place in only certain chromosomes. which chromosomes are they?
Answers
Answer:
=====》 the answer is meiocyte
Answer:
In many ways! :)
Explanation:
Function
Mitosis is for the growth, development, repair of damaged cells and replacement of damaged cells in multi-cellular organisms.
Meiosis is the production of gametes for sexual reproduction.
Explanation:
Which of the following secretes hormones? A. Liver B. Appendix C. Thyroid D. Hypothalamus
Answers
Answer:
c. thyroid
hope it helps
Which statement would most likely explain why the results of one new experiment did not support an accepted hypothesis?
Answers
Explanation:
You need to add a picture so we can see all of the statements.
Answer:
C: The hypothesis was false, and scientists should replace it with a new one.
try it
Poinsettias flower in December and January. Which term best describes this kind of plant?
Answers
Answer: D-“short-day plant” I am doing the quiz right now hope this helped
How do ribosomes create a mutation & how is this mutation controlled?
Answers
Ribosomes do not directly create mutations, but cellular mechanisms such as DNA repair and checkpoints help control and minimize the occurrence of mutations.
Ribosomes themselves do not directly create mutations. Mutations, which are changes in DNA sequence, can occur due to errors during DNA replication or from external factors like radiation or certain chemicals. However, the cellular machinery, including ribosomes, plays a role in the control of mutations through various mechanisms. DNA repair mechanisms help identify and correct errors or damage in the DNA sequence, reducing the likelihood of mutations. Additionally, cellular checkpoints and regulatory processes monitor and control cell division, ensuring that accurate DNA replication and distribution occur, minimizing the inheritance of mutations to daughter cells.
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Show the cross between a heterozygous plant and a homozygous recessive plants
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Answer:
Okay so firstly you'll have to make the Punette square for this.
so if you make a cross you'll get 50 percent heterozygous traits and 50 percent recessive traits
Explain how diffusion restored homeostasis during the dialysis treatment.
Answers
During dialysis, diffusion facilitates the movement of waste products and excess fluids out of the blood, restoring homeostasis.
During dialysis treatment, diffusion plays a crucial role in restoring homeostasis. Homeostasis refers to the body's balanced state, where the levels of various substances are maintained within a narrow range. In the context of dialysis, diffusion refers to the movement of solutes across a semipermeable membrane.In hemodialysis, the patient's blood is circulated through a dialyzer, which contains a semipermeable membrane. On one side of the membrane, the patient's blood flows, while on the other side, a dialysate fluid flows. Due to a concentration gradient, solutes like urea, creatinine, and excess electrolytes in the blood diffuse across the membrane into the dialysate fluid.This diffusion process helps remove waste products and excess fluids from the blood, bringing it closer to the normal physiological range. By restoring the balance of solutes and maintaining proper fluid levels, diffusion in dialysis aids in restoring homeostasis and promoting the overall well-being of the patient.For more such questions on Dialysis:
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The location in the cell for aerobic respiration is the..?
Answers
Answer:
mitochondria
Aerobic respiration is characteristic of eukaryotic cells when they have sufficient oxygen and most of it takes place in the mitochondria.
Explanation:
Match the drug schedules to their descriptions.
Valid medical use but with severe limitations and high potential for abuse and dependence
Answers
Answer:
A. valid medical use but with severe limitations and high potential for abuse and dependence, for example cocaine and morphine. Schedule 2
B. maximum possibility for abuse, no valid medical use, for example heroin and LSD. Schedule 1
C. wide medical use and low potential for abuse and dependence, for example Valium and Xanax. Schedule 4
D. very low potential for abuse and wide medicinal use, for example cough medicines. Schedule 5
E. less potential for abuse and established medical use, for example barbiturates and steroids. Schedule 3
Explanation:
Expained
a) Describe the three areas of research or further education needed for genomic
nursing.
Answers
Answer:
The use of genetic and genomic information is increasingly important in providing effective healthcare.
Explanation:
Genetics focuses on the individual genes in the genome, generally addressing those conditions resulting from single gene errors, conditions nurses encounter rather infrequently.
Hope this helps
Lesson Question:How can the presence of
one species benefit another in the same
ecosystem?
Check all correct elements below that you
included in your question.
independent variable: presence of one
species (here, worms)
dependent variable: effect on another
species (here, lima bean plants)
relationship: benefit
DONE
Answers
Mutualism is a type of symbiotic relationship where all species involved benefit from their interactions.
How can the presence of one species in the same ecosystem assist another?A mutualism occurs when two species have a long-term relationship that benefits both of them (+/+ interaction). Some fungi, for example, create mutualistic relationships with plant roots. The plant may photosynthesize and gives fixed carbon to the fungus in the form of sugars and other organic compounds.
The presence of several species in an ecosystem balances it. The species in an ecosystem interact with one another in some way. For example, the existence of a plant species will offer food for the numerous herbivores found in an ecosystem. A predator may consume a variety of prey. As a result, the existence of diverse prey reduces the likelihood of a species becoming extinct in the ecosystem. As a result, all creatures in an ecosystem are dependent on one another in some way.
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What is the purpose ofground tissue?A. to cover the plant and protect it from water loss anddamageB. to support the plant and make and store foodC. to transport water and nutrients throughout the plant
Answers
The correct answer is C. to transport water and nutrients throughout the plant. Ground tissue are roots, which are in contact with undergorund water and minerals. Roots absorb these and transport it throughout the plant.
At which position was the noon Sun on January 21, as viewed from Binghamton?1) above position 12) below position 33) between positions 1 and position 24) between position 2 and position 3I also need to know WHY it is the answer!!
Answers
The sun position by the Binghamton
Advances in genetic technology have enabled scientists to modify the activities and characteristics of microorganisms such as bacteria, yeast and mold.
Brainstorm a potential modification for bacteria and yeasts that will make better and longer lasting "kitchen product" to use when making food.
Answers
A potential modification for bacteria and yeasts that will make better and longer-lasting "kitchen products" to use when making food is could involve transforming bacteria to produce molecules that help inhibit the growth of harmful bacteria and yeast in food.
What is genetic technology?Genetic technology or genetic engineering is a technique that modifies an organism's DNA using technology developed in labs. Understanding gene expression, utilizing genetic variation that occurs naturally, altering genes, and transferring genes to different hosts are all aspects of gene technology.
For instance, transferring a gene from one species such as bacteria to an organism from a different species such as yeast in genetic engineering may result in the desired characteristic.
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What would happen to the rate of photosynthesis if the CO2 level increased past the optimum at any given light intensity
Answers
Just like when we cook or bake, plants need the right amount of ingredients to make their food. In this case, one of the main ingredients is carbon dioxide (CO2).
But if there's too much carbon dioxide, it can actually be bad for the plant!
So, if the carbon dioxide level goes up too high, the rate of photosynthesis will actually start to slow down. It's like trying to bake a cake with too much sugar - it might not turn out the way you want it to!
That's why it's important to make sure that plants have the right amount of carbon dioxide, just like we need the right amount of ingredients when we cook.
Describe the role of GA in a-amylase production and in germination. Provide evidence for your claim
Answers
Gibberellic acid (GA) plays a crucial role in a-amylase production and germination. GA stimulates the synthesis and release of a-amylase enzymes, which hydrolyze starch into sugars during germination. Experimental studies have demonstrated that the application of GA accelerates a-amylase production and enhances germination in various plant species
In terms of a-amylase production, GA stimulates the synthesis and release of this enzyme. a-amylase is responsible for breaking down starch into simpler sugars, which are then utilized by the plant for growth and development.
Studies have shown that applying GA to plant tissues or seeds results in an increased production of a-amylase, facilitating the conversion of stored starch into energy-rich sugars.
Regarding germination, GA is involved in breaking seed dormancy and promoting the growth of the embryonic plant.
It stimulates the production of hydrolytic enzymes like a-amylase, which enable the hydrolysis of starch reserves in the endosperm, providing the energy needed for germination and seedling establishment.
Additionally, GA helps in cell elongation and division, promoting the growth of the embryo and the emergence of the radicle.
Evidence for GA's role in both processes includes studies where the exogenous application of GA to seeds or plant tissues has been shown to enhance a-amylase production and promote germination.
Conversely, inhibiting GA synthesis or action results in reduced a-amylase activity and impaired germination. These findings support the critical involvement of GA in both a-amylase production and germination processes in plants.
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: Non living and living organisms have things in common o Fact: o Evidence:
Answers
Answer:
Things they have in common..
Explanation:
Non living things and living things are made up of matter.Both occupy spaceThe also have weight,colour,shape etcBoth Non living and living things are characterized by their type..What would happen with the carbon cycle if there were no biosphere?
Answers
Answer: no atmosphere it is a vacume
Explanation:
how can an irreverible step in a metabolic pathway be reversed?
A. When both the reactants and products have equal amounts of energy
B. When the reactants contain large amounts of energy
C. When another chemical reaction with a large amount of energy occurs at same time
D. when collision of substances generate the energy needed
how can an irreverible step in a metabolic pathway be reversed?
A. When both the reactants and products have equal amounts of energy
B. When the reactants contain large amounts of energy
C. When another chemical reaction with a large amount of energy occurs at same time
D. when collision of substances generate the energy needed
Order the sequence of events in transcription?
1- free ribonuleotide triphosphates base-pair with the deoxyribonucleotides in the DNA template
2- RNA polymerase binds to the promoter region of a gene
3- primary rna transcript is formed
4- two DNA strands are seperated
Which organic molecule is not found on the plasma membrane?
A. carbohydrates
B. cholestrol
c. phospholipids
d. proteins
What does this statement mean : "Information flow between cells tissues and organs is an essential feature of homeostasis and allows for integration of physiological processes"
A. the nervous system is the most prominent body system for integration of physilogical processes
B. some substances can affect local processes while others travel to exert their effects on other distant parts of the body
C. communication between body structures through body fluids is the most important physiological processes
D. Neurotransmitters, hormones, paracrine and autocrine substances exert their efferts locally as well as distant body structures
which statement best describes the orientation the phospholipid molecules in a membrane:
A.) the nonpolar fatty acids are oriented towards the cholestrol molecules
B.) the hydrophilic layer is oriented towards the middle of the phosphlipids
C.) phospholipids align themselves in the membrane in a bimolecular layer
D.) the hydrophobic and hydrophilic structures point away from the cell
Which is NOT a product of glycolysis under aerobic and anaerobic conditions?
A.) lactate
B.) FADH
C.) pyruvate
D.) NADH
Which reason is why water is an essential nutrient?
A.) water needs to move between compartments
B.)can be obtained through ingestion
C.) body cant make enough water for its needs
D.) water evaporates from the skin that has the largest surface area among all body structures
Answers
Answer:
WEEEE pero tu crees que yo voy a traducir todo eso?
Explanation:
me da flojera y aparte tengo que estudiar.
Place the following generation of action potential steps in order:
1) sodium channels are inactivated.
2) voltage-regulated potassium channels open and potassium moves out of the cell, initiating repolarization.
3) sodium channels regain their normal properties.
4) a graded depolarization brings an area of excitable membrane to the threshold.
5) a temporary hyperpolarization occurs.
6) sodium channel activation occurs.7) sodium ions enter the cell and further depolarization occurs.
Answers
Answer: 6) sodium channel activation occurs.
4)a graded depolarization brings an area of excitable membrane to the threshold.
7) sodium ions enter the cell and further depolarization occurs.
1)sodium channels are inactivated.
2) voltage-regulated potassium channels open and potassium moves out of the cell, initiating repolarization.
3) sodium channels regain their normal properties.
5) a temporary hyperpolarization occurs
Explanation:
action potential occurs when the differences in the concentrations of ions on opposite sides of a cellular membrane lead to a voltage of a specific cell location rapidly rises and falls.
The steps involved in this generation are;
First of all the sodium-gated channel activation occurs due to inflow of Na, this is called depolarization. A graded depolarization brings an area of excitable membrane to the threshold. More sodium ions enter the cell and further depolarization occurs. After which the sodium channels are inactivated due to the opening of voltage-regulated potassium channels and potassium moves out of the cell, returning it to it initial resting phase initiating repolarization. sodium channels regain their normal properties. a temporary hyperpolarization occurs which is a transient negative shift after an action potential occurs.
1)
A molecule has been isolated from a cell. The molecule is found to be in a ring shape made up of carbon, hydrogen,
and oxygen atoms in a 1.2.1 ratio. Choose all the statements that apply to this molecule.
Answers
PLZ HURRY
Use the information from the article to answer the question.
Meteors
Which statements apply to meteors?
Meteors are bits of material falling through Earth's atmosphere.
Meteor showers are associated with asteroids.
Meteors create a streak of light.
The largest meteor found has a mass of 54,000 kg.
Meteor showers occur in the autumn and winter.
Answers
Answer:
Meteors are bits of material falling through Earth's atmosphere
Meteors create a streak of light
While meteors are associated w asteroids, meteor showers are more associated with comets
Meteor showers can occur when ever but there are annual showers that will occur ea yr
Answer:
1.Meteors are bits of material falling through Earth's atmosphere.
3.Meteors create a streak of light.
Explanation:
TRUST ME
How can you interpret graphs to determine acceleration
Answers
Disscus the importance of phytoplankton to the composition of the earth's atmosphere?
Answers
Answer:
Phytoplankton are essential for atmospheric and climate regulation.
Explanation:
Phytoplankton are autotrophs, they use solar energy, along with inorganic carbon and water to produce their own food source via photosynthesis. During photosynthesis, they also produce oxygen, integral for the planet's atmospheric composition.
At their large biomass, phytoplankton contribute to a majority of the oxygen used by consumers (most animals).
6 CO2 + 6 H2O + light → C6H12O6 + 6 O2
Carbon Dioxide + Water + Light Glucose + Oxygen
Along with fossil fuels, human agricultural practices have contributed large amounts of CO2 to the atmosphere, This causes global warming, a major environmental crisis- global warming also leads to landmass loss, biosphere disruption and reduces biodiversity in mass extinction events.
Phytoplankton carbon cycling produces organic matter which functions as carbon sinks in our oceans. Thus, as phytoplankton use large amounts of CO2, they help combat warming cycles, along with producing O2 in atmospheric and climate regulation.