Answer: false
Explanation:
False, "Reflecting telescopes use a concave mirror to gather light from distant objects while refracting telescopes use two convex lenses to gather light and form an image of a distant object. Also, reflecting telescopes can be made much larger than refracting telescopes."
What materials are needed for photosynthesis to occur?
Answer:
To perform photosynthesis, plants need three things: carbon dioxide, water, and sunlight
Explanation:
I hope this helps :)
Question 1 of 10
What is a major drawback of using fossil fuels?
A. They release carbon dioxide.
B. They destroy greenhouse gases.
O c. They generate electricity.
O D. They cool the planet.
Answer:
A.) They release carbon dioxide!! Why? Carbon dioxide is a greenhouse gas, and a lot of it is released by burning fossil fuels. This warms the planet and triggers climate change. I just did this a p e x biology quiz, so I would know. I got it correct :D.
Radioactive isotopes are used in medicine, power plants, and as tracers.
Please select the best answer from the choices provided
Answer:
the answer is true
Explanation: i got it right on edge.
Answer:
true
Explanation:
The Rio Grande river flows through the South Texas Plains ecoregion of Texas. The river is a major source of water for cities and farms in the area. Sometimes, so much of the Rio Grande's water is used that the river does not reach the Gulf of Mexico. How does the loss of river water affect ocean plants near the mouth of the river? A. Less sediment is deposited in the soil. B. The ocean plants cause more weathering. C. More algae grows and competes for resources. D. The slow water causes more erosion.
Answer:
A. Less sediment is deposited in the soil.
Explanation:
Less sediment is deposited in the soil if there is less amount of water receives by the ocean plants because river water brings minerals with them from passing through the mountains to the ocean. These sediments brings nutrients which are necessary for the ocean plants for their growth and development so we can say that less sediments are deposited in the soil of ocean plants due to less river water.
Rapid reproduction is an advantage of which process?
A. gamete formation
B. sexual reproduction
C. asexual reproduction
D. chromosome duplication
Answer:
I believe the correct answer is asexual reproduction because they can reproduce fast, and with multiple offspring. Hope this helped you!
How many reactants are in the fermentation chemical equation?
What is the number one food crop that isn’t harvested by combines?
Answer:
Vanilla
Explanation:
Sometimes that manual labor shows up in the price of the food; sometimes it doesn't ... We thought there would be an easy answer to that, but there isn't. ... This spice is among the most expensive in the world; the biggest producers are Italy, Iran and Spain ... Those forces combine to lead to the labor issues.
. The small fish are not affected by the pesticide, but death occurs in the bird, at the top of the food chain. Why do you think that happens?
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Darwin used the term 'Natural Selection' to be
him explain his theory of evolution What did
Darwin mean by the term Natural Selection?
!!pleas help!! :((
Answer:
Resources are limited in nature, organisms with heritable traits that favor survival and reproduction will tend to leave more offspring than their peers, causing the traits to increase in frequency over generations.
Darwin meant this my term 'Natural Selection'
Answer:
He defined natural selection as the "principle by which each slight variation, if useful, is preserved".
Explanation:
Darwin's Theory of Evolution by Natural Selection
More individuals are produced each generation that can survive. Phenotypic variation exists among individuals and the variation is heritable. Those individuals with heritable traits better suited to the environment will survive.
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Answer:
D. 4
Explanation:
Reflection can be defined as a phenomenon which typically involves a change in the direction of a ray of light or waves as it falls on a smooth surface.
Simply stated, reflection occurs when a ray of light or wavefronts bounces off a smooth surface.
From the diagram provided above, the thin beam of light which illustrates reflection is the fourth because as it hit the surface, it bounced back to the medium from which it was originally propagated with.
what could happen to an organism when it’s dna mutates
help, please. this is for a friend to help me with.
Explanation:
I hope this helpppppppppppp
Answer:
14. To cause cancer, proto-oncogenes require 2 allele(s) to be mutated and therefore are considered recessive. The mutation results in a gain of function.
15. To cause cancer, tumor suppressor genes require 2 allele(s) to be mutated and therefore are recessive. The mutation results in a loss of function.
A period in history in which human transitioned from human power, animal power and hand made goods to fissile fuel power, hydro/hydroelectric power and machine produced goods.
A. The industrial revolution
B. The agriculture revolution
C. The medical revolution
D. The American revolution
Which of the following would require the use of recombinant DNA?
1. Crossing two apple trees to create better apples.
2. Breeding a donkey and a horse to make a mule.
3. Engineering bacteria that produce human insulin.
4. Creating a polyploid banana tree.
Would the control group not receive the treatment, or receive the same treatment that has been used before?
Answer:
The control group receives either no treatment, a standard treatment whose effect is already known, or a placebo (a fake treatment).
Question 2 of 10
Which of the following countries produces the most greenhouse gases?
A. Egypt
B. Greenland
C. France
D. United States
Answer:
The answer is D. United States
Explanation:
can a baby that has blood type AB have one parent that is type O?
Answer:Yes they can. An AB parent can indeed sometimes have an O child. But it is by no means common. In fact it would be fair to say that it is exceedingly rare.
Why are predators the smallest group at the top in the energy pyramid
Answer:
Predators eat prey, technically speaking.
Explanation:
The lowest and largest group takes the most energy cause it's first base. Going up the chain, the second group takes that energy from the first. Then the third, takes the energy from the second and so on. It's a cycle, and the the smallest group at the top of the energy pyramid will be given the less energy that travels throughout the pyramid.
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2. True or false. Trees have to attract bark from other sources. *
O pol
True
False
Delia is teaching her sister about important molecules in the body.
She tells her sister that one molecule provides a set of instructions that determines traits, such as eyecolor or hair color. Which molecule is Delia describing?
Pls help !!
Answer:
answer is A
Explanation:
The three states of matter are modeled in the heating curve seen here. Identify ALL of the changes that must take place for a substance to change state, from a solid to a gas
A) Pressure increases
B) Temperature increases.
C) Particles spread apart.
D)Kinetic energy increases.
E) Particle motion increases.
Answer: B, C, D, E
Explanation:
In a generalised manner B, C, D and E takes place for a substance to change state, from a solid to a gas.
What is phase transition?The physical process of changing a medium's state from one to another is known as a phase transition. The phrase is frequently used to describe transitions between the three fundamental states of matter—solid, liquid, and gas—and, in rare instances, plasma.
Heat must be used to provide energy for molecules to go through phase change. The intermolecular connections that keep the substance in its current state are broken using this energy. When the element receives enough energy, the phase change will occur.
Without going through the liquid state, sublimation is the process by which a substance moves straight from the solid to the gas state.
Learn more about phase transition, here:
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Compare and contrast the elevated temperature of someone who is exercising vigorously and someone who has an infection
Answer:
Due to muscle contraction and fighting of white blood cells.
Explanation:
Exercise increases the temperature of body because about 20% of the energy produced in contracting muscles is used for muscle contraction while the remaining 80% is converted into heat energy, as a result body's temperature increases whereas a person who has infection also experience high body temperature because the body work faster to fight against the infection that leads to high temperature.
A fox population used to have white fur. In recent years, tan and light
brown colors started to appear in the population.
Which option would cause such a change?
Answer:
Natural Selection or Adaptation
Explanation:
Because they change their fur color so predators cant find them as good
What two components are often found as part of
an enzyme?
Answer:
The two components which are often found as part of an enzyme are Active site and protein. Proteins are referred to as macromolecules or macromolecules which consists of more or one of a chain of amino acid residue. They do perform an array of functions which are within organisms.
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The product of an object's mass, how high it is, and the acceleration of gravity of the planet it's on define which term
A. Potential Energy
B. Work
C. Power
D. Kinetic Energy
Answer:
kinetic energy
Explanation:
10 points
One of Earth's characteristics is that it experiences seasons. Higher
temperatures result in summer and lower temperatures result in winter.
Why does the Earth experience seasons? *
A. Temperatures on Earth vary from one location to another, causing seasons.
B. Cloud cover is heavier in the winter, blocking radiation from the Sun and creating
seasons
C. As Earth revolves around the Sun, the hemisphere that is tilted toward the Sun
receives more direct sunlight, causing seasons
D. Earth's orbit around the Sun is elliptical, and Earth is farther from the Sun in winter,
resulting in seasons
Nas
Answer:
C.
Explanation:
earth's orbit around the sun is an elliptical orbit that requires about 365 1/4 days to complete. When Earth's axis points towards the sun it is summer to that hemisphere
Answer:c
Explanation:
Which is the best evidence that continental plates continue to move?
A recurring weather patterns
B predictable cycles of solar events
C glacial movement and calving
D volcanic activity along the ring of fire
Which set of atoms can be found in ALL carbon-based molecule?
Answer:
All organisms are made of four types of carbon-based molecules: carbohydrates, lipids, proteins, and nucleic acids. These molecules have different structures and functions, but all are formed around carbon chains and rings.
Carbon-based molecules have three fundamental structures—straight chains, branched chains, and rings.
If we were allowed to fish in these waters, how would it affect the food chain? The dolphins in particula
Answer:
Things that would/could affect the dolphins:
Driving away food sourcesOverfishing would cause a lack of food sourcesOverfishing could make them along with other species compete for food/survivalAccidents involving dolphins with boats and fishing equipmentExplanation:
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Should the thruster fire exert force in the same direction or opposite direction to bring the Pod to a stop? Explain.
Answer: Explain the claim : Firing the thrusters would have caused the pod to move in the opposite direction. The pod would have had to have a lighter mass meaning a smaller amount of force would have had to be exerted onto the pod making it move in the opposite direction.
Explanation: