Answer:
Diffusion
is the movement of molecules from an area where there are many to an area where there are few
Hope it helps
How does an impulse move during reflex arc? *
Answer:
Reflex arcs
Sensory neuron sends electrical impulses to a relay neuron, which is located in the spinal cord of the CNS. Relay neurons connect sensory neurons to motor neurons. Motor neuron sends electrical impulses to an effector. Effector produces a response (muscle contracts to move hand away).
What is a major potential problem with DNA evidence?
Having too much DNA
Contamination from other sources
Having to heat up DNA to keep it from degrading
Having too many matches to DNA typing
Answer:
Contamination from other sources.
Explanation:
Name and describe all of the weather fronts.
Answer:
Cold, Warm, Stationary, Occluded
Explanation:
Cold- the leading edge of a colder air mass
Warm- the leading edge of warm air mass.
Stationary- In a front of this kind, neither the cold air mass nor the warm air mass is moving.
Occluded- An occluded front occurs when a cold front overtakes a warm front.
What does Marco scale mean
Answer:
A large macroscopic scale.
Explanation:
the populations decrease as you go from the bottom of the food chain to top. Why do you think is so
Answer:
The reason is so there isn't an overpopulation of predators, or not enough food to sustain them. For example: there is lots of grass for rabbits to eat, comparing that to their predator like a snake, there isn't as much rabbits for them to eat.
Explanation
In the glycolytic pathway, the enzyme triose phosphate isomerase catalyzes the production of glyceraldehyde 3-phosphate (GAP) from dihydroxyacetone phosphate (DHAP). GAP continues through glycolysis via the reaction catalyzed by glyceraldehyde 3-phosphate dehydrogenase. In a muscle (myocyte) cell culture model, anaerobic conditions lead to cell death when triose phosphate isomerase is inhibited. In this same model, cells with inhibited triose phosphate isomerase survive under aerobic conditions. Briefly explain these findings including a discussion of energy production in anaerobic versus aerobic metabolism.
Answer:
In an anaerobic environment, organisms convert glucose into ethanol or lactate. In this condition, glycolysis generates 2 molecules of ATP and one molecule of NADH with the pyruvate. NADH molecule supports glycolysis by oxidized to NAD+ during the fermentation process.
Here one 6-C molecule breaks into two molecules G3P and DHAP, TPI or triose phosphate isomerase interconvert these two isomers and each triose is responsible for the production of two ATP molecules but if TPI is inhibited then there will be one ATP production which is not enough for supporting cellular process under the absence of oxygen and cell do not survive.
But in aerobic conditions pyruvate converted to acetyl CoA which produces 3 NADH, 1 FADH2, and 1 ATP that will get enough ATP by the oxidative phosphorylation hence will survive even if TPI is inhibited.
How non human organisms impact nature?
how to find the energy that the food has
Explanation:
To calculate the energy available from a food, multiply the number of grams of carbohydrate, protein, and fat by 4,4, and 9, respectively. Then add the results together.
blood vessels that transport blood from heart to organs
Answer:
arteries
Explanation:
the areteries are the vessels that transport the blood from the heart to the organs.
The supporting paragraphs in a research essay are built on:
A. your opinions about works of literature.
B. accepted rhetorical conventions.
C. bibliographical entries to your works-cited list.
O D. the information you gather during the research process.
Answer:
D
Explanation:
Someone please help me!!
The term that refers to the physical appearance of an individual with respect to gene expression for a
particular trait is
Answer:
term refers to physical appearance of an individual with respect to gene expression for particular trait. phenotype
Answer:
Phenotype , is the term that refers to the physical appearance of an individual with respect to gene expression for a particular trait
hope it helps
In the Disease Transmission experiment you will simulate exposure to a "pathogen". Predict whether the rate of exposure (the amount of contacts) will affect an individual’s chance of becoming infected. Explain your reasoning.
Answer:
Yes, the rate of exposure (the amount of contacts) will affect an individual’s chance of becoming infected
Explanation:
Yes, the rate of exposure (the amount of contacts) will affect an individual’s chance of becoming infected
The larger is the rate of exposure to infected individuals, the higher is the probability of a healthy individual to get infected.
Let us suppose , if a healthy individual comes in contact with only other healthy individuals then the individual’s chance of becoming infected will be zero.
Which of the following statements is true?
---------------------------------------
Convection currents in the mantle cause the movement of crustal plates.
The earth's core is made of liquid metal.
The earth's crust is very hard and strong. It is difficult for magma to break through.
The presence of sedimentary rocks means the area was once near an active volcano.
Answer:
The presence of sedimentary rocks means the area was once near an active volcano.
Explanation:
The first statement is true the rest are not true
hope it helps
Which factor could have allowed the population of black peppered moths to increase in the late 1800s? (1 point)
less rain
less vegetation
Less food
less predation
Natural selection favored the population of black peppered moth. This led to less predation and increased population of black peppered moth.
What is natural selection?The natural selection is the process to adapt and change according to the changing environment by organisms.
Initially there were both white and black peppered moths were present. It was recognized that the camouflage of white moth was not worked in dark forest.
This caused mutation in them and changed their wing color to darker shades.
This led to less predations as they were no more recognizable in dark forest due to their dark wings.
Thus, the correct answer is d.
For more details regarding natural selection, visit:
https://brainly.com/question/9830102
Place the labels accordingly to Biotic or Abiotic factors of this ecosystem.
(answers)
Answer:
abiotic: sea, air, rock, sun ,sea water.
biotic : shrimp , bacteria ,whelk ,
sea anemone, plankton, fish.
Explanation :
Biotic factors relate to all the living things in the ecosystem.
abiotic refers to all the non-living factors present in an ecosystem. Sunlight, water, land, all constitute the abiotic factors.
What type of organic molecule (carbohydrates proteins lipids nucleus acids) does DNA hold the instructions to make
Answer: macromolecules
Explanation:
Answer:
Proteins
Explanation:
DNA sequences are "codes" that ultimately make proteins.
During which of the following periods of reproduction in ewes is fetal mortality most likely?
the final four to six weeks of gestation
the first hours after parturition
the final stages of parturition
the first month of gestation
Answer:
D
Explanation:
first month of gestation
What is nitrogen fixing?
A When bacteria turn nitrogen into ammonium
В When humans absorb nitrogen
ht2009 delhi Comagation
All Rights Reserved
Answer:
A
Explanation:
i am sorry if this is wrong
What causes the release of the digestive enzyme pepsin
Answer:
Impulses from the vagus nerve and the hormonal secretions of gastrin and secretin stimulate the release of pepsinogen into the stomach, where it is mixed with hydrochloric acid and rapidly converted to the active enzyme pepsin.
Someone please help me I will mark you BRAINLIST I need help with all 6 questions please
Answer: 1. smallpox.
the common cold and different types of flu.
measles, mumps, rubella, chicken pox, and shingles.
hepatitis.
herpes and cold sores. 2. Most notably, viruses differ from living organisms in that they cannot generate ATP. Viruses also do not possess the necessary machinery for translation, as mentioned above. They do not possess ribosomes and cannot independently form proteins from molecules of messenger RNA. 3. All viruses contain nucleic acid, either DNA or RNA (but not both), and a protein coat, which encases the nucleic acid. Some viruses are also enclosed by an envelope of fat and protein molecules. In its infective form, outside the cell, a virus particle is called a virion. 4. All viruses contain nucleic acid, either DNA or RNA (but not both), and a protein coat, which encases the nucleic acid. Some viruses are also enclosed by an envelope of fat and protein molecules. In its infective form, outside the cell, a virus particle is called a virion. 5. A bacteriophage is a virus that attacks bacterial cells. The lytic and lysogenic cycles are two methods of viral replication. In the lytic cycle, the virions produced are released from the host cell whereas in the lysogenic cycle, viral nucleic material are incorporated into host nucleic material and are copied to daughter cells when the host cell reproduces. The common steps in both cycles are given below:
1 Attachment – in this step, the bacteriophage attaches itself to the surface of the host cell so as to insert its DNA into the host cell.
2. Penetration – the virus inserts its DNA into the host cell by penetrating the cell membrane of the host cell.
3. Replication – the viral nucleic material is replicated using the host cell's replication mechanism. 6. Host range is determined by the presence of receptors on the cell's surface. Viruses attach only single species and some attack only particular types of cells within a plant or animal. brainliest?
Explanation:
The figure shows a Paramecium, a single-celled freshwater protist. The hairlike
structures visible on the Paramecium allow it to move. These structures are
microfilaments.
True
False
而)
Answer:
This should be true
Explanation:
hope it helps
(b) Many amphibian species throughout the world are endangered
Suggest three reasons why many amphibian species are endangered
Answer:
The correct answer is - habitat loss, pollution and disease, and climate change.
Explanation:
Many amphibians are endangered due to several reasons including, habitat loss, climate change, pollution and disease, non-native species invasion, and many others. Amphibians are mostly live in damp habitats or moist soil and low-level water and these habitats are destroys due to pollution, deforestation or excess fishing.
Pollution and disease also affect these species most specifically chytridiomycosis, caused by the chytrid fungus was an epidemic for many amphibians. Climate change also affects the temperature and soil quality precipitation of the habitat that not suitable for these species.
Star A has a surface temperature of 8000K and its thermal emission peaks around 360nm. Star B is twice as cold, with a temperature of 4000K. Its thermal emission must peak around...
Question 3 options:
90nm
180nm
360nm
725nm
1450nm
Answer:
180 hope this helps tell me if its wrong
Explanation:
Pls help plsssssssssssssessseeeses
Answer:
can you please show us what the options are and I can for sure help you out?!
Assignment: 02.03 Early Cells Lab report
Answer:
I don't see anything. I think you forgot to attach the picture.
Why do we add detergent to the strawberries? Group of answer choices To dissolve proteins that are found on the DNA molecule and release the DNA from those proteins. To dissolve the cell and nuclear membranes and release the DNA. To stabilize the DNA molecule so it doesn't fragment when dissolved in water. To keep the strawberries alive. To rinse off any dirt and pesticides that are on the strawberries.
Answer:
The correct answer is - To dissolve the cell and nuclear membranes and release the DNA.
Explanation:
The major function of the detergent in DNA extraction is to dissolve the cell and cellular membranes. It can increase the membrane permeability by pulling apart lipids and proteins that are components of the nuclear and cellular membrane and lyse the cell, from which we want to extract the DNA.
Detergents cause pores in the cell membranes and once these membranes are completely lysed the DNA is released from the cell. It is similar to detergents removes fat (lipids) from dishes.
Amplify The temperature of the areas surrounding Farmington before Storm 1 and before Storm 2 was about 8°C, and there was the same amount of water vapor in the air. Storm 1 had more rainfall than Storm 2. Farmington Before Storm 1: Photograph of farmland on a clear day, with a blank response box containing a question mark. The air temperature is 8° Celsius. Before Storm 2: The same scene with an air parcel in place of the blank response box. The temperature inside the air parcel is 19° Celsius and outside is 8° Celsius. Arrows labeled wind frame the air parcel, pointing inwards. What were the conditions before Storm 1, and why did more rain fall with those conditions?
Storm 1. The air parcel at the surface was warmer and had more energy, so when it moved higher, it lost more energy.
The condition before storm 1 should be that the air parcel of the surface should be considered as the warmer and contain more energy.
What are weather patterns?It means the repeated way with regard to the weather that could be occur for days or it can be for the weeks also . It should be leads by heat from the sun and the movement can be done from the air.
Moreover, in the storm 1, the air parcel of the surface should be considered as the warmer and contain more energy. Due to this, it should high and lost the energy.
learn more about air here: brainly.com/question/5096224
Choose all the answers that apply.
Which of the following materials can be recycled?
•copper
•aluminum
•paper
•steel
•glass
Answer:
Paper, Aluminum, Glass, Copper, & Steel are all 100% recyclable.
Explanation:
neeed helpp plssssssssssss asap
Answer: 1. Primary producers use energy from the sun to produce their own food in the form of glucose, and then primary producers are eaten by primary consumers who are in turn eaten by secondary consumers, and so on, so that energy flows from one trophic level, or level of the food chain, to the next.First,the sun transfers heat to the plants,helping them grow.Animals such as deer who would eat grass,eat plants. 2. Initial Observations What was the health of the ecosystem of Atlas National Park like before wolves were reintroduced? Before the wolves, all species were outside their normal range. The ecosystem was not in equilibrium at all and slowly deteriorating. 3. Wolves are causing a trophic cascade of ecological change, including helping to increase beaver populations and bring back aspen, and vegetation. brainliest?
Explanation:
