Which of the following statements about a woodland describes a
community?
A. All the oak trees
B. All the plants
C. All the oak trees and blackbirds
D. All the plants and animals
Answer:
Option D
Explanation:
All the plants and animals
H-C-C-C-0-H
T-O-1
TO
Polor or non polar
In peas, axial flowers are dominant over terminal flowers. What phenotypic ratios would you expect in offspring from a cross between a known heterozygous axial-flowered plant and one whose flowers are terminal?
Answer:
Phenotype:
2/4 = 1/2 = 50% axial-flowered plant (Aa)2/4 = 1/2 = 50% terminal-flowered plant (aa)Phenotypic ratio 1:1
Half of the progeny will be axial-flowered plants (Aa) while the other half will be terminal-flowered plants (aa)
Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached files
GMO technology today is an important part of modern biotechnology and is used, among other things, to give bacteria, plants and animals new properties. This is possible by inserting a gene from, for example, a bacterium, into a plant or animal (transgenes).
The diagram provided represents some steps in a procedure used in the field of biotechnology SC.912.-16.10
This bacterial cell can now be used to produce
A. Insulin that can be used by humans
B. Human genes for enzymes that can be inserted into humans
C. The bacterial gene for insulin that can be inserted into humans
D. Enzymes necessary to treat human diseases
Organisms whose genetic material has been modified are called Genetically modified organisms. The bacteria can be used for the production of Insulin that can be used by humans.
What are GMOs and transgenes?Genetically modified organisms are altered and modified living things like animals, plants, a microorganisms that are modified by the methods of genetic engineering and recombinant DNA technology.
The genetic material that is modified and inserted in the host for the expression of the gene of interest is called a transgene. The genetically modified gene can be inserted in bacteria, plants and animals.
In the diagram gene for the production of human insulin is inserted in the bacterial DNA so the insulin produced can be used for the treatment of diabetic human patients.
Therefore, option A. bacteria cells can be used for the production of Insulin.
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can someone help me with this question pls
Answer: Uranium is a scarce resource
What would happen if the rock sample picture above was first exposed to energy from the sun and then millions of years later energy from earths interior
Answer:
It will have energy inside the rock
If we found a way to repair a single cell with the DMD gene in a 2-year old child, could we cure DMD by repairing that single cell?
Answer:
No
Explanation:
because every cell will have that gene and you can't change a gene that was inherited from your parents.
No, there is no chance of curing DMD, by repairing a single cell with the DMD gene because it is a genetic disorder.
What is DMD?Duchenne muscular dystrophy, is the full form of DMD. It is a disease that cause weakness of muscles and leads to degeneration of muscles, it occurs due to change in dystrophin protein which is necessary to strengthen the muscles.
Thus, the correct option is No.
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What might happen to a plant if the roots grew away from the pull of Earth’s gravity?
(PLEASSEEE HELPP)
Answer:
the dirt would not help the plant, the roots would grow upwards towards a different gravity source, but this question is physically impossible because it could only happen if the earth were not their, if you were out in an “empty void“ of particles smaller than you, the particles would begin to circle you because you are teh nearest source of gravity, (ignore the ship, since its bigger than you.)
Explanation:
If the roots grew away from the pull of earth's gravity, the dirt would not help the plant, the roots would grow upwards towards a different gravity source.
What do you mean by earth's gravity?Gravity is measured as how fast objects accelerate towards each other. The average gravitational pull of the Earth is 9.8 meters per second squared (m/s2). The Earth is made of different substances like air, rock, and water.
Earth's gravity comes from all its mass. All its mass makes a combined gravitational pull on all the mass in your body. That's what gives you weight. And if you were on a planet with less mass than Earth, you would weigh less than you do here.
The Earth's average is 9.80 m/s2 (32 ft/s2) which is generally reported as the acceleration of gravity on Earth. This means a dropped object will speed up 32ft/s every second it falls assuming no air resistance.
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Why is the cell cycle so tightly controlled in multicellular organisms?
Answer:
All multicellular organisms use cell division for growth and the maintenance and repair of cells and tissues. Cell division is tightly regulated because the occasional failure of regulation can have life-threatening consequences.
All multicellular organisms use cell division for growth and the maintenance and repair of cells and tissues. Cell division is tightly regulated because the occasional failure of regulation can have life-threatening consequences.
What is cell cycle?Cell cycle has been as the defined as cycle in which cell produces, grows and divides. The cell cycle has mainly three steps the first one has G1 phase in which the size of the cell increases, S phase synthesis of DNA takes place and the third step has G2 phase in which all cell ready to divide.
Cell has been defined as the base of the life as it has the structural as well as functional unit of life. Cell has been made up of pre existing cells and the cell contain various part cell organelles such as mitochondria, endoplasmic reticulum, ribosomes, golgi appratus, nucleus, and cytoplasm.
Therefore, All multicellular organisms use cell division for growth and the maintenance and repair of cells and tissues. Cell division is tightly regulated because the occasional failure of regulation can have life-threatening consequences.
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The soil in forested wetlands has dark soil,
which indicates a high level of
organic matter
moss
water
Answer:
water
Explanation:
Dirt has a tendency to begin to change to a darker color as its absorbance limit gets closer to being reached.
A couple has three children, two without sickle cell anemia and one with sickle cell anemia. The mother has sickle cell anemia as well, while the father does not.
Make and defend a claim as to how this couple could have children with and without sickle cell anemia.
Answer:
Explanation:
The sickle cell allele is recessive. Hence, in order for any child of the couple to have sickle cell anemia, such a child will have to inherit an affected allele each from the two parents. This means that both the father and the mother must have affected alleles in their genotypes. In other words, two sickle cell alleles are required for the abnormality to manifest.
Let us assume that the sickle cell allele is represented by S and the normal allele is represented by A.
Now, it is established that the mother has sickle cell anemia, her genotype would be SS. The father does not have sickle cell, his genotype can either be AA or AS.
Assuming the genotype of the father is AA:
SS x AA
AS AS AS AS
All the children would be normal in this case.
Assuming that the genotype of the father is AS
SS x AS
AS SS AS SS
50% of the children would have sickle cell while the remaining 50% would be normal.
Therefore, in order to produce children with sickle cell, the father has to be AS, otherwise, he has to be AA.
What is cancer?
Group of answer choices
Division of sex cells
A disease that attaches to your cells
A disease similar to a virus that can infect any cell of the body
Uncontrolled mitosis of cells
Answer:
C
Explanation:
How can the length of day affect temperatures on Earth?
Answer:
The longer the day the solar radiation is absorbed and the higher the temperature.
Chemical barriers to pathogens include
lysozyme in the____and____
in
the stomach.
Answer:
tears or saliva and mucusExplanation:
hope this helps
Explanation:
Chemical barriers to pathogens include
lysozyme in the___saliva_and__mucus__
in
the stomach.
The US Council on Environmental Quality, the World Wildlife Fund of the United States, the Ecological Society of
America, the Smithsonian Institution, and the International Union for the Conservation of Nature have proposed four
principles of wildlife conservation. Which of the following does not apply to wildlife conservation?
A) continuous monitoring, analysis, and assessment
B) ecosystem maintenance that includes wildlife
C) a plan encompassing entire communities of organisms and all renewable resources
D) a continued interest in harvesting populations for sport
Answer:
B
Explanation:
Answer:
D) a continued interest in harvesting populations for sport
Explanation:
edge
In the process of photosynthesis the compounds that are produced are...
a
carbon dioxide and water
b
glucose and oxygen
c
water and oxygen
d
glucose and carbon dioxide
[tex] \huge \purple{\tt{Answer:}} [/tex]
b) glucose and oxygen
2.
Describe what happens during interphase. Be sure to include all three parts of interphase.
Answer:
Interphase is divided into three subphases which are G1 phase, S phase and G2 phase.
Explanation:
During G1 and G2 phases, the cell grows by producing proteins and cytoplasmic organelles. Cell growth and cell differentiation occur. In the S phase, synthesis of DNA occurs. The chromosomes are duplicated and DNA has replicated to form two identical sister chromatids joined together by centromere. During interphase, the chromosomes are not visible but appear as thread-like structures, chromatin. In general. Interphase is the phase where the cell prepares for cell division. It involves synthesis of protein and organelles, growth, replication of DNA, cell differentiation and energy storage.
Which material are you most likely to find in the C horizon?
Answer:
C horizon, a zone of little or no humus accumulation or soil structure development. The C horizon often is composed of unconsolidated parent material from which the A and B horizons have formed.
Severe weather events can create ecological disturbances, which can impact biodiversity. Think about a severe weather situation you have experienced near your home or have witnessed on the news. In 3–5 sentences, explain how the severe weather event created ecological disturbances that impacted biodiversity.
Answer:
"Or Have Witnessed On The News" Hurricane Katrina was a weather event, that created huge ecological disturbances. The hurricane caused damage to 5 million acres of land, which included coastal forests where many animals called home. The storm killed thousands of humans and animals, and also sent potential invasive species to new environments. The hurricane caused 10 coastal bird species to decline, the storm also caused disturbances in the aquatic wildlife with over 9 million fish being killed offshore due to the hurricane, the dolphins were also heavily impacted with many being injured in the storm, but most were rescued. The hurricane also caused freshwater overflood, it sent massive amounts of freshwater into coastal bays and estuaries which shifted the balance between salt water and fresh water.
Explanation:
My answer, i'd advise you to re-word it to advoid plagirism. For Biodeverisity Unit Test Essay Question
"O 1 Have Witnessed On The News" Hurricane Katrina turned into a climate event, that created big ecological disturbances. The storm prompted harm to five million acres of land, which protected coastal forests wherein many animals known as home.
The typhoon killed lots of people and animals, and additionally despatched capability invasive species to new environments. The storm prompted 10 coastal chicken species to decline.
The typhoon additionally prompted disturbances withinside the aquatic flora and fauna with over nine million fish being killed offshore because of the storm, the dolphins have been additionally closely impacted with many being injured withinside the typhoon, however, maximum have been rescued.
How clean water can be formed after ecological disturbance?The storm additionally prompted freshwater overflood, it despatched big quantities of freshwater into coastal bays and estuaries which shifted the stability among salt water and clean water.
Hence concluded that ecological disturbances can cause cyclones.
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enzymes work by ___
a. changing the ph of the solution
b. transforming products
c. making bubbles
d. lowering the activation energy
Answer:
Enzymes work by binding to reactant molecules and holding them in such a way that the chemical bond-breaking and bond-forming processes take place more readily. Reaction coordinate diagram showing the course of a reaction with and without a catalyst. With the catalyst, the activation energy is lower than without.
Which substances are needed to make food in plants? A. Glucose and oxygen B. Oxygen and water C. Water and carbon dioxide D. Carbon dioxide and oxygen
Answer:
Es la c
Explanation:
Which of the following best describes how an atomic property is used in the treatment of cancer?
A
An unstable atom that absorbs gamma rays is used in radiation therapy to treat cancer.
В.
A stable atom that absorbs gamma rays is used in radiation therapy to treat cancer.
C.
A stable atom that emits gamma rays is used in radiation therapy to treat cancer.
An unstable atom that emits gamma rays is used in radiation therapy to treat cancer.
A stable atom that emits gamma rays is used in radiation therapy to treat cancer. Thus option C is correct.
What is cancer ?
Cancer is a disease in which abnormal cell growth occur with the help of uncontrolled cell division and spread to other parts of the body. If it is fixed to one specific area of the body called as benign whereas if it spreads over different parts of body called as malignant.
In case of normal cell growth when human cells will grow and multiply to form new cells, when become old it will get damaged; In case of cancer mainly caused by genetic changes that control the way our cells function.
These Genetic changes that cause cancer include errors in cell division, damage of DNA due to harmful substances in the environment like chemicals in tobacco smoke and ultraviolet rays, also inherited from parents.
gamma rays which is the most powerful radiation energy could be focused to a pin point, and kill cancer cells with out harm the adjacent normal tissue, Now a days Gamma knife device is used to treat brain tumors.
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PLSSS HELP!!
A. carbon dioxide
B. food
C. living space
D. light
Answer:
a
Explanation:
PLEASE HELP ASAPP ILL GIVE BRAINLIEST!!!
Answer:
I would expect the mass to be less
A child collected data about the motion of a toy train on a straight track and recorded the data in the graph below witch of these Accurately describes the motion of the toy train
Which phases of mitosis are the most difficult to distinguish? Why?
Answer:
Since prophase and prometaphase are difficult to distinguish; classify the cells as prophase
DNA is the most difficult to visualize at prophase stage of mitosis.
Explaination: At prophase stage,no well defined chromosomes are present. DNA is present in the form of thin chromatin fibers that are difficult to visualize under microscope.
Forces Study Guide
What does Newton’s first law say?
Give an example of the first law.
What does Newton’s second law say?
Give an example of the second law.
What does Newton’s third law say?
Give an example of the third law.
An object with a mass of 48kg accelerates as 4 m/s/s. What force is required to make this happen? (HINT: F = ma)
What are the four types of friction? Give an example and definition of each. Use this website link to help you answer this question: 4 Types of Fricton
If force goes up, what happens to acceleration?
If mass increases, what happens to acceleration?
Unbalanced forces cause an object to ____________
Balanced forces cause an object to ________ or ______.
Draw 4 different force diagrams where the forces are unbalanced.
Give a real life example for each
Draw 3 different force diagrams where the forces are balanced.
Give a real life example for each
A ball rolls across the floor at a constant speed, what will happen to it if there is no friction? Why?
How does the scenario above change if there is friction? Explain.
How do you measure, or calculate (include units on each of these)
Weight
Inertia
force
What is a net force and how do you find it?
Gravity:
Define gravity
What affects gravity?
Is there gravity in space?
How are mass and weight different?
If you travel to Pluto what happens to your mass and weight?
I have a weight of 80N, what is my mass?
A ball is dropped from the top of a building’s roof. What is the acceleration of the ball?
Explain how satellites and orbits work.
Answer:
The motion of a ball falling down through the atmosphere, or a model rocket being launched up into the atmosphere are both examples of Newton's first law. The motion of a kite when the wind changes can also be described by the first law.
Newton's Second Law of Motion says that acceleration (gaining speed) happens when a force acts on a mass (object). Riding your bicycle is a good example of this law of motion at work. Your bicycle is the mass. Your leg muscles pushing pushing on the pedals of your bicycle is the force.
Other examples of Newton's third law are easy to find. As a professor paces in front of a whiteboard, she exerts a force backward on the floor. The floor exerts a reaction force forward on the professor that causes her to accelerate forward.
It is summarized by the equation: Force (N) = mass (kg) × acceleration (m/s²). Thus, an object of constant mass accelerates in proportion to the force applied.
Friction is the force that opposes motion between any surfaces that are in contact. There are four types of friction: static, sliding, rolling, and fluid friction.
Static, sliding, and rolling friction occur between solid surfaces. ...
Fluid friction occurs in fluids, which are liquids or gases.
increase the force on an object the acceleration increases proportionally. Since the mass does not change as the acceleration increases, we can say that force is equal to acceleration. Therefore, if you double the force you double the acceleration.
If you increase the mass at a given force the rate of acceleration slows. Therefore, mass is inversely proportional to acceleration.
The net force is the vector sum of all the forces that act upon an object. That is to say, the net force is the sum of all the forces, taking into account the fact that a force is a vector and two forces of equal magnitude and opposite direction will cancel each other out.
Newton's law also states that the strength of gravity between any two objects depends on two factors: the masses of the objects and the distance between them. Objects with greater mass have a stronger force of gravity between them. ... Objects that are closer together have a stronger force of gravity between them.
Some people think that there is no gravity in space. In fact, a small amount of gravity can be found everywhere in space. Gravity is what holds the moon in orbit around Earth. ... It is possible for a spacecraft to go far enough from Earth that a person inside would feel very little gravity.
The mass is essentially "how much stuff" is in an object. ... Weight: There is a gravitational interaction between objects that have mass. If you consider an object interacting with the Earth, this force is called the weight. The unit for weight is the Newton (same as for any other force).
You can enter your weight in any unit you wish
If you are talking about these objects on Earth, then the gravitational acceleration is around 9.81 m/s2 . We know that weight is given by the formula, W=mg , where m is the mass of the object in kilograms, and g is the gravitational acceleration.
Satellites are able to orbit around the planet because they are locked into speeds that are fast enough to defeat the downward pull of gravity. ... A satellite maintains its orbit by balancing two factors: its velocity (the speed it takes to travel in a straight line) and the gravitational pull that Earth has on it.
I need help on how to fill this in.
How did the Cuyahoga River Fire in 1969 push the development of The Clean Water Act?
Answer:
Cleveland had been a major industrial city since the 1880s, and the mayor then called the river “an open sewer through the center of the city.” But when the Cuyahoga River caught fire in Cleveland in 1969, many believe it became the symbol of out-of-control pollution that was needed to get the Clean Water Act passed.
Explanation:
Old red blood cells are cleaned out of the body by the _____ and ______.
spleen and liver
liver and stomach
kidney and stomach
kidney and spleen
Answer:
Kidney and spleen
Explanation: