how do electrons gain energy in photosystem 1?

Answers

Answer 1

Answer: they absorb photons from sunlight.

Explanation:

Answer 2

Answer:

They absorb photons


Related Questions

As a result of the Punic Wars, Rome

Answers

Answer:

Punic War effectively put an end to Carthage's empire in the western Mediterranean, leaving Rome in control of Spain and allowing Carthage to retain only its territory in North Africa. Carthage was also forced to give up its fleet and pay a large indemnity to Rome in silver.

Explanation:

The Punic Wars had a number of important impacts to the Roman society and politics. ... A result of the first Punic War and the Romans was the decisive naval victory against the Carthaginians at the Aegate Islands. This gave Rome full control of Sicily and Corsica.

In rabbits, the gene for brown fur (B) is dominant over the gene for white fur (b). What are the genetic makeups of two parent rabbits whose offspring can have only white fur?

Answers

Answer:

Probably a white rabbit and a grey ish one

Explanation:

hope this helps.

What are some ways that the nitrogen cycle overlaps with or influences the oxygen and carbon cycles?


Are any of these interactions between the cycles positive?

Answers

Answer:

Nitrification happens when soil organisms change over ammonium into nitrate. Much of the cover between the carbon cycle and the nitrogen cycle happens within the soil, in forms conducted by soil organisms. Organisms break down supplements, construct modern compounds for their possess development, and die.

second question not sure sorry

Question 7 of 30
1 Point
DNA is made up of pairs of nitrogenous bases. Which of the following
nitrogenous bases is paired correctly?
O A. Adenine-guanine
O B. Guanine-guanine
O C. Guanine-cytosine
O D. Cytosine-thymine
SUBMIT​

Answers

Answer:

C. Guanine-cytosine

Explanation:

The answer to your question is answer b good luck

Which graph shows the presence of nitrogen-fixing bacteria in the soil

Answers

Answer:

2

Explanation:

The graph that shows the presence of nitrogen fixing bacteria in the soil would be graph 2.

Nitrogen fixing bacteria are bacteria that are capable of converting atmospheric nitrogen into plant-usable nitrogen in the soil. The conversion is done in two stages;

1. First, atmospheric nitrogen is converted into ammonia.

2. Ammonium is converted into usable nitrate

Hence, the correct graph is the one in which the amount of atmospheric nitrogen decreases with a corresponding increase in the amount of ammonia. This would indicate the conversion of nitrogen into ammonia which is the first step in nitrogen fixation by nitrogen-fixing bacteria.

Graph 2 represents the presence of nitrogen-fixing bacteria in the soil.

This is because in this graph the concentration of atmospheric nitrogen (N2) is lower and the concentration of ammonium (NH4) is higher. The nitrogen-fixing bacteria converts or fixes atmospheric nitrogen that can't be absorbed by the plants into ammonium or nitrates which can be absorbed by the plants and make necessary amino acids for the body so we can conclude that graph 2 indicates the presence of nitrogen-fixing bacteria in the soil.

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What is artificial selection?
A. When 60 percent of a species dies at one time
B. When humans breed an animal for a certain trait
C. When a new allele is formed by mutation
D. When extreme traits are selected by nature
SUBMIT

Answers

Answer:

Selective breeding is the process by which humans use animal breeding and plant breeding to selectively develop particular phenotypic traits by choosing which typically animal or plant males and females will sexually reproduce and have offspring together.

B when humans breed an animal for a certain trait

The stems of horsetails contain:

A. spores
B. utensils
C. silica

Answers

The answer is C) Silica

Write a short paragraph to contrast mitosis and meiosis in terms of type of cell produced function in an organism

Answers

Answer:

Mitosis is the process of cell division to make more cells, meiosis is the process of sperm and egg cells dividing to make a baby.

Explanation:

In the reaction 6CO2 + 6H 20+C6H 120 6 + 60 2 carbon dioxide is one of the
O products.
enzymes.
elements.
catalysts.
reactants.

Answers

Carbon dioxide is one of the reactant

the glaciers found in the north and south poles are melting, which leads to an increase in the sea level.

Answers

I'm assuming this is a true or false question, if that is the case, then your answer is TRUE

RNA differs from DNA in that RNA:

A. Contains a different sugar molecule

B. contains the nitrogen bass uracil

C. All of the above

Answers

A. contains a different sugar molecule

some of the advantages of inorganic farming.

Answers

Answer:

With the use of pesticides, farming can be faster and it also detracts insects and weeds

Answer:

One advantage inorganic fertilizers offer is that they are fast acting. These nutrient-rich salts dissolve quickly and are immediately available to the plants depending on them to provide essential nourishment in the form of nitrogen, phosphorus and potassium.Organic fertilizers usually contain plant nutrients in low concentrations. Since many chemical/inorganic fertilizers are concentrated and very soluble, it's easier to apply too much and damage your plants. Fresh, non-composted manure can damage your plants as well, because some manure contains harmful amounts of salts

HOPE IT HELPS :)

PLEASE MARK IT THE BRAINLIEST!

The bar chart shows the heights of pea plants grown from 500 pea seeds.What variation do the plants show?

A. Continuous variation only
B. Discontinuous variation only
C. Both continuous variation and discontinuous variation
D. Neither continuous variation and discontinuous variation

Answers

Answer:

C. Both continuous variation and discontinuous variation

Explanation:

this was the answer on my quiz a couple days ago

It's C. Both continuos variations and discontinuos variation

What is produced during the photosynthesis process?

A. Chloroplasts
B. Carbon Dioxide
C. Sugar

Answers

Answer:

Sugar

Explanation:

Photosynthesis is a process that certain organisms undergo. Plants, algae, and certain bacteria use this process to produce their own food. These organisms are called producers or autotrophs.

The equation for photosynthesis is:

carbon dioxide + water + light energy —-> glucose + oxygen

The plants turn carbon dioxide, water, and light energy from the sun into glucose and oxygen. The glucose, or sugar, becomes the food for the plant. The oxygen is the waste product.

The question asks us what is produced during photosynthesis.

Chloroplasts are not produced, but they are where photosynthesis takes place. Carbon dioxide is not produced, but it is used in the process. The correct answer is sugar. Sugar is produced, and it is the food for the organism.

Arranging items by order or category is called ?

Answers

Answer: it is called sorting or in other words sequence order

Explanation: Already Learned This In Class

Many products and services were initially developed for space exploration. Which of these does NOT have a direct connection to space exploration? A. X-ray machine B. freeze-dried food C. infrared ear thermometer D. portable cordless vacuum

Answers

Answer:

freeze dried food is your answer

Answer: A x ray machine

Explanation:

there is no reason for an x ray machine for space exploration

Which of the following aspects of the article is NOT
thoroughly discussed?
А
The effect of increased carbon levels on plant
life.
B.
How the cycle of seasons affects carbon
levels.
С
How carbon might contribute to an ice age.
D
How living things obtain energy from carbon.​

Answers

C. How carbon might contribute to an ice age.

what consists of three stages

Answers

Answer:

Stages of what

Explanation:

Give reasons for the following.
2. Energy is the fuel of life.
1. Diamond and coal are basically different forms of carbon.​

Answers

1. Energy is often considered the “Fuel of Life”. Primarily, it is needed for maintaining basic

metabolism (maintenance energy). Any excess is then used for production of meat (growth)

and/or eggs (production). Fed too much energy, hens become overweight (excess growth)

leading to poor production. If fed too little energy, hens begin using protein to meet their basic

maintenance needs and egg production may be compromised. As is the case with most things

in life, balance is the key. This article is an attempt to provide a flock manager with some tools

to use when making decisions on feeding energy to a breeder flock. Some of the research

cited is not current and is in no way intended to be anything more than an example of the

thought processes that may be helpful when making difficult decisions about feeding.

Energy is essential to meet our most basic needs: cooking, boiling water, lighting and heating. It is also a prerequisite for good health – a reality that has been largely ignored by the world community.

2. Coal and diamond are two examples of carbon allotropes, where the carbon atoms are bonded together in different configurations. These structural differences result in very different material properties, such as hardness.

On its own, carbon cannot form diamonds under the surface of the Earth. Both coal and diamond are made primarily from carbon, but their chemical structures are significantly different. Coal is formed from highly impure carbon that often contains elements like oxygen, selenium, hydrogen, nitrogen and sulfur.

What do cells have in common

Answers

Answer:

All cells have these four parts in common: a plasma membrane, cytoplasm, ribosomes, and DNA.

Explanation:

Answer:

All cells share four common components:  

a plasma membrane, an outer covering that separates the cell’s interior from its surrounding environment

 cytoplasm, consisting of a jelly-like region within the cell in which other cellular components are found

DNA, the genetic material of the cell

ribosomes, particles that synthesize proteins. However, prokaryotes differ from eukaryotic cells in several ways.

Environmental pollution does not affect an individual’s health. Please select the best answer from the choices provided T

Answers

Answer:

False,

environmental pollution of food, water sources, air, etc can all affect individual's health it's kinda obvious that environmental pollution does affect a person health

Explanation:

hope it helps!

Environmental pollution does not affect an individual’s health, which is a false statement, as the environment has an important role in the health of the person, such as the cold environment activating different genes in people than the hot environment.

What is the significance of environmental pollution?

Environmental pollution has many implications, such as the following, air and water pollution, depletion of natural resources as their number decreases due to unfavorable conditions, increased risk of diseases, decreased biodiversity, etc.

Hence, environmental pollution does not affect an individual’s health, which is a false statement, as the environment has an important role in the health of the person, such as the cold environment activating different genes in people than the hot environment.

Learn more about environmental pollution here.

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hypothesize how many pennies you believe a floating boat made out of a piece of aluminum foil about the size of your palm could hold before sinking.


A
0 pennies

B
1- 10 pennies

C
11-50 pennies

D
Greater than 50 pennies

Answers

D:Greater than 50 pennies

what is population density? What is the formula for calculating population density?​

Answers

Answer:

Explanation:

To calculate the population density, you will divide the population by the size of the area. Thus, Population Density = Number of People/Land Area. The unit of land area should be square miles or square kilometers.

i hope it helps

The formula for population density is Dp= N/A, where Dp is the population density, N is the total population, and A is the land area covered by the population

In a sample of double-stranded DNA, 30% of the nitrogenous bases are adenine (A).
What percentage of the nitrogenous bases in the sample are thymine (T)?
Choose 1 answer:
A. 20%
B. 30%
C. 60%
D. 70%​

Answers

Answer:

30% thymine

Explanation:

If 30% of Adenine is present, it would be reasonable to assume that 30% of Thymine will be present, as the ratio between the two complementary nitrogenous bases will be roughly equal. Therefore, that leaves us with 40% between Cytosine and Guanine.

how to ecosystem services affect human sustainability

Answers

Answer:

Ecosystem services play important role in human sustainability. Ecosystem services include provisioning,regulating, supporting, and cultural.

Provisioning include production of food and water which is one of the essential requirement for human survival and provided by ecosystem in the form of plants or other animals. No food means no human life.

Regulating may include the control of disease and climate.Humans at different regions are susceptible to particular temperature and diversity in Climate provide required atmospheric condition for human survival. Climatic changes causes global warming which bring many diseases and temperature fluctuations that affect human sustainability. Diseases decreases human population and affect human susceptibility so ecosystem controls the diseases that increases chance of human survival. More diseases with no medicine may result into high mortality rate.

Supporting, such as oxygen production and nutrient cycles are important factors that support human sustainability because nutrients provide energy to humans to do work and oxygen is must for their living.

Cultural involve recreational and spiritual benefits. Recreational and spiritual benefits include regulation of physical and mental health and social interaction with  other people  that keeps a human healthy and happy for living a good life.

Hence, ecosystem services promote and affect human sustainability.

For children who do not have galactosemia, what are their possible genotypes for this trait?

a pedigree chart for the inherited genetic condition galactosemia

heterozygous
homozygous dominant
homozygous recessive
no inheritance for this trait

Answers

Answer:

The correct answers are "heterozygous", and "homozygous dominant".

Explanation:

Galactosemia is a condition where people are not able to process the sugar galactose. People with this condition have one gene mutated, which does not allow the proper synthesis of the enzyme that breaks down galactose. Galactosemia is inherited as an autosomal recessive genetic condition, therefore, only children that are homozygous recessive develop the condition. Children that are heterozygous or homozygous dominant, will not develop galactosemia.

Answer:

its heterozygous and homozygous dominant

Explanation:

What group behavior is being displayed by the cattle grouping together?

Answers

Answer:

It is called a social behavior.

Explanation:

Group behavior is a term that expresses the manner of behavior among two or more interacting specie of organism to achieve a purpose. Various organisms show different group behaviors.

When cattle group together, they display a herding ungulates as the behavioral group. They come together to achieve a particular objective which could be for protection, survival, feeding etc. Thus forming a social group and interact among themselves.

Can light cause changes metal

Answers

Answer:yes

Explanation:Cause metal to be semi conductor

Answer:

yesssssssss!!!!!

Explanation:

Which best explains how the body mantens homeostats)
Al systems work together to statize the body
O Each system works independents to sizbize the body
O Al systems work together to match the extemal environment
Each system works independently to match the female vorment​

Answers

Answer:

All systems work together to stabilize the body.

Explanation:

Certain systems work with each other in order to maintain homeostasis, which is essential for the body. For example, when blood circulates through the digestive system, it picks up nutrients absorbed by the body during its last meal. Additionally, blood carries oxygen taken in by the lungs. The circulatory system works with the respiratory system here to distribute oxygen to other parts of the body.

23 POINTS PLS HELP
Use complete sentences to explain how the mass of oxygen is conserved during cellular respiration.

Answers

Answer:here you go

Explanation:

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