Answer:
1.A _shadow_ is formed when an _ transparent _ object blocks the path of light
2. A mirror works by _reflecting_the light that hits
Explanation:
1. A shadow is made when an object blocks light. The object must be opaque or translucent to make a shadow. A transparent object will not make any shadow, as light will pass straight through it.
2.When photons — rays of light — coming from an object (your smiling face, for example) strike the smooth surface of a mirror, they bounce back at the same angle. Your eyes see these reflected photons as a mirror image.
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how does a gene effect the traits of a human
Answer:
They make you look like your parents. You can also do certain things like roll your tongue up or have dimples. It can also determine if you are left handed or right handed or eye color.
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Explanation:
A small lake is filled with fish, turtles, and snakes. The next morning all the fish die but the turtles and snakes are still thriving. How did all the fish die?
Answer:
the snakes and turtles ate the fish
Explanation:
How to grow taller? Please explain in great detail
Answer:
try to jump and reach high places like roofs this will help you greatly
Explanation:
What happens to the soil fertility if some Rhizobium bacteria are added to the soil? Explain your answer
Answer:
if rhizobium bacteria is added to the soil the soils nitrogen levels will increase.
this because that the rhizobium bacteria is able to convert atmospheric nitrogen into a more soluble form .plants arent able to absorb nitrogen directly from the air so the rhizobium helps the plants to obtain nitrogen.
Answer:
The soil will be rich in nitrogen salts and its fertility increases.
Explanation:
the bacteria fixes nitrogen level in the soil by converting nitrogen from the air into nitrogen salts and form nitrates that plants can use easily.
what is the center of the DNA strand?
Answer:
It exhibits traits and metabolic instructions of the cell.
Explanation:
A DNA strand is a thin long molecule, with an average width of just around two nanometers. The remarkable thinness of the DNA strands allows them to be bundled very tightly fitted inside cells. Once DNA has been replicated adequately during the process of cell division, it is further wrapped together under a mechanism known as supercoiling. A non-condensed DNA is further condensed during supercoiling using a special protein known as a histone. A part of DNA packed around a large cluster of histones is called a nucleosome. Additional condensation leads to a chromosome or the most compact type of DNA that fits into the nucleus. It is also worth noting that this wrapping does not merely align DNA into a cell, but serves other objectives such as protecting DNA, thus ensuring metabolic instructions to the cell.
which are examples of negative feedback? Select three options.
Answer:
C- when someone's pancreas stops producing the hormone that lowers blood sugar because the person hasn't eaten recently
D- when someone’s pancreas hormone increases every time they eat, but decreases when they aren’t eating
E- when a person takes calcium supplements so a gland will stop secreting a hormone that pulls calcium from the bones
Explanation:
I got it right on my test!
ur welcome
The examples of negative feedback among the given options are 1. A child whose thymus gland is building an immune system that gets stronger each day.
3. When someone's pancreas stops producing the hormone that lowers blood sugar because the person hasn't eaten recently.
4. When someone's pancreas hormone increases every time they eat but decreases when they aren't eating.
Negative feedback is a regulatory mechanism in the body that works to maintain homeostasis by counteracting or reversing changes in the body's internal environment.
It helps to keep various physiological processes within a narrow range and prevent excessive fluctuations.
1, the child's thymus gland building an immune system that gets stronger each day is an example of negative feedback. As the child grows, the thymus gland stimulates the production of immune cells (such as T cells) to strengthen the immune system, which is a response to the body's needs.
3, when someone's pancreas stops producing the hormone that lowers blood sugar because the person hasn't eaten recently, it demonstrates negative feedback.
4, when someone's pancreas hormone increases every time they eat but decreases when they aren't eating, it also illustrates negative feedback. After a meal, the pancreas releases insulin to facilitate glucose uptake by cells, reducing blood sugar levels.
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Your question is incomplete, but most probably your full question was.
Which are examples of negative feedback? Select three options.
1. a child whose thymus gland is building an immune system that gets stronger each day.
2. when someone’s adrenal gland reacts to a scary movie by secreting hormones that make the heart beat quickly.
3. when someone's pancreas stops producing the hormone that lowers blood sugar because the person hasn't eaten recently.
4. when someone’s pancreas hormone increases every time they eat, but decreases when they aren’t eating.
5. when a person takes calcium supplements so a gland will stop secreting a hormone that pulls calcium from the bones
Which is the faster work organ in our body ?
Explanation:
skin is the faster work organ in our body
Answer:
heart works faster in our body
Explanation:
Many biochemical reactions that occur in the cell are nonspontaneous when measured at the biochemical standard state, but are spontaneous inside of the cell. What is the most likely explanation for this difference in spontaneity for the same reaction measured under different conditions
The concentrations of reactants and products inside the cell favor the reactants.
Which two phrases best describe cells?
A. Make up tissues
B. Made up of organs
C. The most complex level of organization of life
D. The simplest level of organization of life
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▹ Answer
A. Make up tissues
C. The most complex level of organization of life
▹ Step-by-Step Explanation
A is one of the correct answer choices since cells → tissues → organs → organ systems.
C is the second correct answer choice since cells have such an amazing structure that functions in surprising ways. Cells are our whole body and they function daily in our body, showing that it is very complex.
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all plants give out oxygen during day and carbon dioxide during 9 to you agree with this statement give reason
Answer:
Yes, I agree with the given statement.
Explanation:
Plants undergo the process of photosynthesis for the production of their food. In this process, they require the presence of sunlight, carbon dioxide, water, minerals, and chlorophyll. The process of photosynthesis is possible only during the day because sunlight is one of the major components. Carbon dioxide is taken in by the plant through the stomata from the environment. The oxygen is formed as a product of the process and is released in the environment. This process becomes impossible during the night because of the absence of sunlight. The entire process sums up to that the plants give out oxygen during the day and give out carbon dioxide during the night.
What can a biologist infer from a population that is uniformly distributed through its habitat?
Answer:
The population has reached its carrying capacity
Explanation:
Answer:b
Explanation:
Como podemos trasladar una caja de 50 kg desde planta baja hata un primer piso que presenta una inclinacion de 40º que tipo de maquina simple se utilizaria
Answer:
Explanation:
We can easily move the box from a ground floor though to the first floor at an angle of 40° to the horizontal by simply pushing the load through an inclined plane. We will simply be lean the inclined plane on the building at the required angle and the push through the the height of the building.
Based on the explanation above, the best type of simple machine to use is an INCLINED PLANE. Note that the essence of using a machine is simply to make our work easier and faster and also be able to overcome a much larger load with a minimal effort.
What do does it mean to have a commercial market for space travel and what benefits could come from having one?
Answer:
The commercial market for space travel have generated multiple benefits for scientific experiments.
Explanation:
The flight of NASA astronauts onboard commercial spaceships to the International Space Station may be at risk, but the payoffs from low-cost flights to the orbital station and the increased experimental use of the microgravity environment are expected to be significant. Scientific studies, such as the production of vaccines, are now taking place onboard the space station, so providing more cost-effective means of entering earth orbit could fundamentally change other industries, such as medicinal and materials engineering.
What is the role of xylem in a vascular plant?
A. Transports salt to the roots of the plant
B. Transports chloroplasts to the leaves of the plant
C. Transports carbohydrates from the leaves to the roots
D. Transports material from the roots up into the plant
SUBMIT
the correct answer is D
The role of the xylem in a vascular plant is to transport material from the roots up into the plant.
What do you mean by Vascular plants?Vascular plants may be defined as those plants that have a specialized conducting system that includes xylem and phloem.
Xylem is known to transport water and all essential nutrients and minerals from the roots to the leaves.
Phloem on the other hand transport food from the leaves to the roots.
Therefore, the role of the xylem in a vascular plant is to transport material from the roots up into the plant.
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Which of the following is an organism whose cells do not have a membrane-
bound nucleus?
A. An animal
B. A eukaryote
C. A prokaryote
D. A plant
Answer:
C. A prokaryote
Explanation:
A prokaryote is an organism that consists of a single cell that does not have a nucleus or membrane-bound organelles.
A prokaryote is an organism whose cells do not have a membrane-bound nucleus. Therefore, option (C) is correct.
What is a prokaryote cell?
Prokaryotes are unicellular organisms, such as bacteria and archaea, which lack many of the organelles found in eukaryotic cells, including a nucleus. In prokaryotic cells, the genetic material is contained in a single circular chromosome located in the cytoplasm, which is not separated from the rest of the cell by a nuclear membrane.
The lack of a nucleus is one of the defining characteristics of prokaryotic cells, which are distinct from eukaryotic cells found in animals, plants, fungi, and protists, which all have a nucleus and other membrane-bound organelles.
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Review the terms and their definitions in the Mini Glossary. Write a sentence that tells how
amplitude and frequency can describe a wave.
Answer:
A wave is a type of motion caused by water and wind that can cause a huge wave also depending on weather and it can be found in a beach at a ocean and more type of water places.
Explanation:
Waves that include both longitudinal and transverse movements include water waves.
Mini Glossary and wave;Particles move in clockwise rings when a wave goes through the waver. As the depth of the water grows, the radius of the circles shrinks.
A wave is a form of motion created by water and wind that can produce a large wave depending on the weather and can be found on a beach, in the ocean, and in other types of aquatic environments.
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Ash trees are being removed when they show signs of the ash borer, a parasite that affects only ash trees and kills them off. What best explains why the ash trees are being cut down? The ash borer is a density-independent limiting factor, and humans need to clear cut to control tree density. The ash borer is a density-dependent limiting factor and will start to spread to nearby healthy trees. Ash trees are outcompeting other trees and are thus more affected by the ash borer. Changes in climate have decreased ash borer populations which indirectly increased the need for cutting down the trees.
Answer:
The ash borer is a density-dependent limiting factor and will start to spread to nearby healthy trees.
Explanation:
Ash borer is a parasite that affects ash trees it is highly destructive and invasive. It affects it Native host causing serious damages. Infected plant is cut down to avoid its spread to other healthy plant this is because ash bored when not control can destroy a whole population of ash trees in it Native environment within the space of 10 years. Its population dependent and would keep increasing in population and become more destructive. Thus, to avoid its spread infected trees are treated cut down and cut down.
Blue ash a type of ash tree shows high resistance to ash borer because of it high tanning content that makes the leaf not suitable to consume to them.
Answer:b
Explanation:
A food web is represented below.
Mountain lion
Hawk
SS
Snake
23
Ow
Frog
Rabbit
Mouse y
Deer
Cricket
Shrubs
Grass
Trees
A continuous decrease in the size of the rabbit population would most likely cause a decrease in which other population?
Answer:
The frog population
Explanation:
Because the frogs will no longer have food to eat and might die from starvation. The decrease in the rabbit population affects them directly.
The structural and functional unit of skeletal muscle is called a/an . The connective tissue covering around a fascicle is the . The part of a muscle fiber that contracts is called a/an . The connective tissue covering an individual muscle fiber is the . The connective tissue covering on the outside of a whole muscle is the .
Answer:
The structural and functional unit of skeletal muscle is called a sacormere
The connective tissue covering around a fascicle is the perimysium
The part of a muscle fiber that contracts is called the myofibril
The connective tissue covering on the outside of a whole muscle is the Epimysium
Explanation:
which structure is found mainly in green plants and bacteria
Answer:
Cell Walls
Explanation:
Animals cells do not have cell walls, only cell membranes. However, lots of plants and bacteria have cell walls to further protect past the cell membrane and provide rigid structure.
3. Consider the statement: "An individual with two normal copies of the hemoglobin gene is said to
be
Which of the following phrases could fill in the blank to make the statement true?
Write "yes" or "no" next to each possible response.
Answer:
C IS THE ANSWER
Explanation:
YOU MUST ANSWER C
In the product 6O2, what does the coefficient mean? There are 12 molecules of O2, There are 8 molecules of O2, There are 6 molecules of O2. There are 2 molecules of O2.
In the product 6O2, there are 6 molecules of O2.
WHAT COEFFICIENT MEANS:
Coefficient, in chemistry, refers to the number behind an element. It represents the number of molecules of that element. The coefficient tells us the amount of molecules contained in an element. For example;In the product 6O2, this tells us that there are 6 molecules of oxygen gas (O2). Other examples are: 2Mn meaning 2 molecules of manganese, 3CO2 meaning 3 molecules of carbon dioxide etc.Learn more: https://brainly.com/question/11815186?referrer=searchResults
The moon is an example of a _________ object while a lit match is an example of a _______object.
Answer:
Moon- non-luminous
Lit match-luminous
Em 2015, os países e a população global se reuniram para decidirem sobre novos caminhos, melhorando a vida das pessoas em todos os lugares. Essas decisões foram fundamentais para determinar ações globais para acabar com a pobreza, promover a prosperidade e o bem-estar para todos, proteger o meio ambiente e enfrentar as mudanças climáticas. As ações adotadas pelos Estados-membros resultaram em 17 Objetivos de Desenvolvimento Sustentável (ODS). Quais objetivos têm relação com o consumo sustentável? Qual o resultado esperado com a prática 12 para o consumo mais sustentável da população global?
Answer:
O principal objetivo da prática 12 é reduzir as perdas e usar os recursos naturais de maneira adequada.
Explanation:
Consumo sustentável significa que o uso dos recursos naturais é muito eficiente para evitar a poluição do meio ambiente. recicle o material usado e use-o novamente para reduzir o custo e também a poluição que ocorre durante sua fabricação. Use materiais que não agridam o meio ambiente e reduzam o uso de combustíveis fósseis. Reduzir perdas de alimentos e também evitar perdas que ocorrem após a colheita da colheita, a fim de fornecer mais alimentos para a população existente. O resultado esperado com a prática número 12 para um consumo mais sustentável pela população global é que mais alimentos e recursos estejam disponíveis para a população existente. população.
In the process of respiration, energy is released from ______
molecules and stored in smaller ______ molecules.
A. protein, ATP
B. food, glucose
C. lipids, triglycerides
D. glucose, ATP
Answer:
The answer is option D.
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Answer:
In the process of respiration, energy is released from glucose molecules and stored in smaller ATP molecules.
Explanation:
Among carbohydrates, protein and fat, carbohydrates are metabolized first on respiration.
Glucose first breaks into pyruvic acid (Glycolysis) Pyruvic acid forms acetyl coA (Link reaction) Acetyl coA enters into the kreb cycle, where ATP is formed. ATP formed through substrate level phosphorylation (direct ATP) and Electron transport chain (indirect ATP). NADH2 and FADH2 formed during respiration enters into ETC where they form ATP through oxidative phosphorylation.Thus, we can say that the correct option is D. Glucose, ATP.
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name of compound of Ca(HCO)2
Answer:
Calcium bicarbonate
Explanation:
As monoculture becomes more profitable, some crop varieties are threatened
with extinction. Which of the following would be the best solution to this
global economic problem?
O A. Creating an international seed bank to protect biodiversity
B. Establishing international agreements to prevent overfishing
C. Forming strict regulations on greenhouse gas emissions
D. Encouraging developing countries to participate in global trade
Answer:
A. Creating an international seed bank to protect biodiversity
Explanation:
Monoculture involves the growing or rearing of a particular crop or livestock for commercial purposes. This brings more profit due to the importance of such crops or livestock but it results to some crop varieties being threatened with extinction due to the crops not being grown.
The best option would be to create an international seed bank to protect biodiversity and ensure availability of the future planting of the crops.
5. In your everyday life, you have probably noticed that certain instruments are ideal for certain situations. For example, you would use a spoon rather than a fork to eat soup because a spoon is shaped for scooping, while soup would slip between the tines of a fork. The use of ideal instruments also applies in science. In what situation(s) would the use of a light microscope be ideal, and why
Answer:
A light microscope, particularly when the cell has indeed been spattered to disclose information, would've been ideal when examining a small living organism.
Explanation:
A light microscope is a laboratory biology instrument or device that uses transparent sensors to illuminate and exacerbate and enlarge, very small objects. Individuals use lenses to center light on the test sample, thereby amplifying it to produce an image. The experiment is usually located near the respective.
It does this by producing a magnified image using a series of glass lenses, which first focuses a laser light on or through an object, then conveys objective lenses to expand the created image.
Explanation:
A light microscope would be ideal for viewing significantly small living organisms, such as bacteria , viruses, and other single celled organisms. A microscope is device especially made to magnify the size of object or the beings. So, it helps to the study the details of the tiniest of the things.
Which statement about cellular respiration is true?
O It produces oxy
O It requires water
O It is used by every living cell.
O It converts energy to food.
Which statement describes convergent boundaries?
Rift Forms.
Subduction Occurs.
Plates push away from each other.
Mid-ocean ridges mark locations.
Answer:
its b i took the test
Explanation:
Subduction describes convergent boundaries.
What is convergent boundaries?Lithospheric plate borders that are convergent are those where the plates are moving in the same direction. These regions' plate clashes have the potential to cause earthquakes, volcanic eruptions, and crustal deformation.
The thicker, less dense continental plate pushes aside the thinner, more dense oceanic plate when the two plates contact. Subduction is the process by which the oceanic plate is pressed into the mantle.
The oceanic plate is pushed into regions with increasing temperatures as it falls. Materials in the subducting plate start to approach their melting temperatures and partial melting starts to take place at a depth of around 100 miles (160 km).
Therefore, Subduction describes convergent boundaries.
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