Answer:
Answer:Fossil fuels are the largest sources of energy for electricity generation. Natural gas was the largest source—about 38%—of U.S. electricity generation in 2019.
Answer:Fossil fuels are the largest sources of energy for electricity generation. Natural gas was the largest source—about 38%—of U.S. electricity generation in 2019.Explanation:
Answer:Fossil fuels are the largest sources of energy for electricity generation. Natural gas was the largest source—about 38%—of U.S. electricity generation in 2019.Explanation:The United States uses many different energy sources and technologies to generate electricity. The sources and technologies have changed over time, and some are used more than others. The three major categories of energy for electricity generation are fossil fuels (coal, natural gas, and petroleum), nuclear energy, and renewable energy sources. Most electricity is generated with steam turbines using fossil fuels, nuclear, biomass, geothermal, and solar thermal energy. Other major electricity generation technologies include gas turbines, hydro turbines, wind turbines, and solar photovoltaics.
of energy for electricity generation are fossil fuels (coal, natural gas, and petroleum), nuclear energy, and renewable energy sources. Most electricity is generated with steam turbines using fossil fuels, nuclear, biomass, geothermal, and solar thermal energy. Other major electricity generation technologies include gas turbines, hydro turbines, wind turbines, and solar photovoltaics.Fossil fuels are the largest sources of energy for electricity generation
Natural gas was the largest source—about 38%—of U.S. electricity generation in 2019. Natural gas is used in steam turbines and gas turbines to generate electricity.
Natural gas was the largest source—about 38%—of U.S. electricity generation in 2019. Natural gas is used in steam turbines and gas turbines to generate electricity.Coal was the second-largest energy source for U.S. electricity generation in 2019—about 23%. Nearly all coal-fired power plants use steam turbines. A few coal-fired power plants convert coal to gas for use in a gas turbine to generate electricity.
Natural gas was the largest source—about 38%—of U.S. electricity generation in 2019. Natural gas is used in steam turbines and gas turbines to generate electricity.Coal was the second-largest energy source for U.S. electricity generation in 2019—about 23%. Nearly all coal-fired power plants use steam turbines. A few coal-fired power plants convert coal to gas for use in a gas turbine to generate electricity.Petroleum was the source of less than 1% of U.S. electricity generation in 2019. Residual fuel oil and petroleum coke are used in steam turbines. Distillate—or diesel—fuel oil is used in diesel-engine generators. Residual fuel oil and distillates can also be burned in gas turbines.
Where are proteins digested?
1 Gall bladder
2 stomach
3 small intestine
4 large intestine
Answer:
2) stomach
Explanation:
Protein digestion begins in the stomach, where the acidic environment favors protein denaturation.
Answer:
Stomach
Explanation:
the person above is right, I chose small intestine and got it wrong
The presence of which magnetic feature best explains why a magnet can act at a distance on other magnets or on objects containing certain metals?
O fields
O dipoles
O domains
O forces
Answer:
Option: A) fields
Explanation:
Answer: A) Fields
Explanation:
I just took the test.
The leaves of plants have many specialized structures. Which statement explains the importance of the stomata and guard cells for the plant?
o They protect the plant from pests
o They are involved in plant reproduction
They work together to regulate water loss and gas exchange.
o They regulate the amount of water that enters the plant for cellular respiration
Answer:
They work together to regulate water loss and gas exchange.
They work together to regulate the loss of water and exchange of gases.
Stomata and guard cellsThe tiny pores or openings in plant tissue, which allow for the exchange of gases are known as stomata.
The unique cells, which surround stomata and work to close and open the stomatal pores are known as guard cells.
Both these helps a plant to take in carbon dioxide at the time of photosynthesis and also assist in reducing the loss of water by getting closed when conditions are dry and hot.
Thus, stomata and guard cells work together to regulate the loss of water and gas exchange.
Find out more information about stomata and guard cells here:
https://brainly.com/question/7602098
1. Which of the following is true of cell energy?
O A. All organisms do some form of cellular respiration
B. Only some organisms undergo cellular respiration.
C. Since plants use photosynthesis they do not use cellular respiration
O D. Anaerobic respiration creates more energy than aerobic respiration,
Answer:
A. jabsjsushsbsjizisbsbsjsisjsnsn sjsbbd dhdbbdbs. djsbsbd djsjbs d
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
Which of the following is NOT a consequence of a stressed ecosystem?
A. Famine
B. Drought
C. War
D, Increased Population
Answer:
C
Explanation:
due to all the other questions come naturally that stresses the ecosytem
What are three ways used to describe organisms such as humans
Answer:
heterotrophs, tertiary consumers and top carnivoresExplanation:i toke the test
Review Paragraph 5. What factor would not affect the island lizard gene pool once they
reached the mainland?
Here's link to the answer:
tinyurl.com/wpazsebu
how Greenhouse gases in the atmosphere impact Earth’s global climate
Answer:
They impact it by heating up the atmosphere by trapping heat
How does the carnivorous plant catch its victums?
Pitfall traps (pitcher plants) trap prey in a rolled leaf that contains a pool of digestive enzymes or bacteria. Flypaper traps use a sticky mucilage. Snap traps utilise rapid leaf movements. Bladder traps suck in prey with a bladder that generates an internal vacuum.
Answer:
They use special traps that are connected to them.
Explanation:
For example, the Venus Flytrap uses it's "mouth" to close on the fly. A sundew plant uses sticky spines to stuck to the bugs and slowly curls up and digests the bug.
The fossil record shows that the types of living things on Earth changed over time. Which fossil would most likely be found in the oldest rock layer?
Answer:
Trilobite
Explanation:
I got it right on my test:)
Answer:
The answer is Trilobite. Here is proof. Plz mark brainliest
Explanation:
A biologist wants to measure the effect of gene flow between populations. Which of the following investigations will allow her to accomplish this goal?
A)An investigation that determines a change in allelic frequency of a wolf population by theimmigration of a wolf from another population.
B)An investigation that determines the amount of time it takes for genes from a bee to transfer to the flower it fertilizes.
C)An investigation that determines the causes of mutations in genes that one species of guinea pig transfer to another species of guinea pig.
D)An investigation that determines the rate at which an antibiotic prevents a virus from transferring genes to a cat.
Answer:
B
Explanation:
Cause I say so
The investigation that will allow a biologist to measure the effect of gene flow between populations is that a change in allelic frequency of a wolf population by the immigration of a wolf from another population. Thus, the correct option for this question is A.
What is Population?A population may be defined as a group of individuals belonging to the same species living in the same area at a given time. The size, density, abundance, birth rate, death rate, dispersal, etc. are categorized as the characteristics of a population. These characteristics are known as demographic factors.
According to the context of this question, the process of gene flow can be determined by collating allele frequencies of populations. With this mechanism, if the two populations have increased variation in their gene pool, it expresses a lesser amount of gene flow because gene flow increases homogeneity among different populations.
Therefore, the correct option for this question is A.
To learn more about Gene flow, refer to the link:
https://brainly.com/question/3498897
#SPJ6
Do mutations in body cells contribute to genetic variation?(1 point)
A) No, the causes of body cell mutations are outside the body and cannot alter DNA.
B) Yes, the mutations can be passed on to offspring and contribute to variation in the population.
C) Yes, these body cell mutations lead to mutations in the gametes.
D) No, the mutations cannot be passed to offspring and only affect the individual.
A mutation is the alteration of the genetic sequence of an organism, which can either be inherited or cannot be inherited. The mutation when transmitted to the offspring leads to genetic variation.
The correct answer is:
Option B. Yes, the mutations can be passed on to offspring and contribute to variation in the population.
Mutation is the change in the genetic sequence of the organism, which can be caused due to environmental factors and can be inherited.
The mutations can lead to genetic disorders, chromosomal disorders, or any other conditions. The mutations like a disease or adaptation that can be passed onto the offspring can result in genetic variation.
The mutation leads to genetic diversity, as the mutation is also the first step towards evolution. The organisms better suited to the environment will survive more and adapt more. These changes in the organisms will be inherited by the offspring leading to genetic variation.
Therefore Option B is correct.
To know more about mutation, refer to the following link:
https://brainly.com/question/4222118
What does the Greek Root "pro" mean?
Answer:
The prefix pro- primarily means “forward” but can also mean “for.” Some words that the prefix pro- gave rise to are promise, pro, and promote. When you, for instance, make progress, you are stepping “forward,” whereas if you give the pros in an argument, you are speaking “for” something by stating its advantages.
Explanation:
9 facts about the atmosphere
Explanation:
Air is mostly gas. Air is all around us, but we can't see it. ...
Air isn't just gas. ...
Air is important for living things. ...
Carbon dioxide in the air can be both good and bad. ...
Air also holds water. ...
Air changes as you go up, up, up. ...
Air is a protective cushion. ...
There is life in the air.
what kind of flower is this?
Answer: could be Trifolium repens Aka the white clover
Explanation:
9. Who benefits from herd immunity?
Answer:
Everyone since the virus or disease won’t be able to infect them. The left infected the less the spread.
Explanation:
Answer:
Herd immunity protects the most vulnerable members of our population.
Which of the following improves your range of motion and helps prevent
injuries?
A. A healthy body composition.
B. Strong flexibility,
C. Strong cardio-respiratory endurance.
D. A good sense of balance.
SUBMIT
Answer:
B. strong flexibility
Explanation:
Being flexible allows your body to move in a fuller range of motion and can help prevent injury because you aren't putting as much strain on yourself.
Need help!!!!! I need this page solved !!
Answer:
1. Igneous
2. Compacting and cementation
3. Igneous
What is the name of a group of connected and related organisms?
A. Flow
B. System
C. Energy
D. Matter
Answer:
system
Explanation:
Each of your cells has a set of chromosomes, including
autosomes and sex chromosomes. Explain the main
differences between these two types of chromosomes.
Answer:
in the 46 chromosomes in our body, the autosomes are the first 22 homologous pairs of chromosomes that do not influence the sex of an individual, while sex chromosomes are the 23rd pair of chromosomes that determine the sex of an individual
hope this helps, good luck! : )
Crossing a red-flowered four o’clock with a white-flowered four o’clock will produce pink-flowered offspring. This is called
1) incomplete dominance
2) codominance
3) F2
4) recessive
Answer:
incomplete dominance
Explanation:
7. Which of the following systems is NOT found in a flatworm:
a. Digestive system
b. Respiratory system
c. Nervous system
d. All of the above
Answer:
No. B
8 think so
I hope it helps ✌️
Explanation:
Parasitic flatworm do not have a digestive system because they don't digest there food. They just suck it when the upper gut muscles contract, suck it inside their body then gobble them up and then they're done sucking the nutrients from the food people eat.
Answer:
A. Digestive system
the substance present in the cell wall is protein true or falseboth animal and plant cells have cell membrane true or False
Answer:
true and true
Explanation:
About 3% of Earth’s water is fresh water. About 1% of this amount is usable fresh water.
Which statement describes the distribution of usable fresh water on Earth?
Most of the usable fresh water is in lakes.
Most of the usable fresh water is in rivers.
Most of the usable fresh water is in the wetlands.
Most of the usable fresh water is in the atmosphere.
Answer:
most of the usual fresh water is in lakes
Explanation: just did the assignment
help me please i’m learning in anatomy and physiology
Which term best describes two predators living in the same habitat who feed on the same prey?
A.coexistence
B.mutualism
C.competition
Answer:
The answer is C, competition
Competition refers to the interaction between the organisms to seek or feed on the same resource.
The term that best describes the two predators living in the same habitat feeding on the same prey is competition.
Competition can be defined as:
Competition in an ecosystem or habitat will take place when the ecological niche of organisms overlaps as both organisms try to use the same resource. In habitat, the predators feeding on the same prey will have competition, as the predators will fight for food, nutrients, and a source of energy to survive. Competition can be caused among animals due to food, space, and shelter.
Thus, the correct answer is Option C.
To know more about competition, refer to the following link:
https://brainly.com/question/1622043
At the end of the mitotic cell cycle, a cell divides into two cells. What must happen before the cell divides? A. The number of organelles doubles. B. Chromosomes must be copied. C. Four nuclei must be formed. D. The membrane thickens.
Answer: The correct option is B.
B. Chromosomes must be copied
Explanation:
This is because, before mitosis occurs the cells must first duplicate or replicate it's DNA during interphase and this is because mitosis is a type of cell division where a parent cell divide into two daughter cells which are genetically identical to the parent cell and carry the exact number of chromosomes of the parent cell.
Answer:b
Explanation:
The least specific level of classification is:
A.Phylum
B.Domain
C.Order
D.Genus
Answer:
species
Explanation:
use this acronym king pharaoh can order for general scientists. king for kingdom, pharaoh for phylum,can for class,order for order, general for genus and scientists for species
Answer: the answer is c
Explanation: C. Provide a root to the phylogenetic tree by choosing a noncontroversial out group. D. ... B. domain, kingdom, class, phylum, order, family, genus, species. C. i hope this helps i learnd this way in class
Based on the reading, what is the characteristic that differentiates the bullfrog?
Answer:
it has a bulls fan in it so it is powerful
When wax is heated, it turns into a liquid. How are the wax molecules affected by this change of state?
answer:
the molecules gain more energy and the space between the molecules increases
explanation:
when wax is heated, the molecules of wax gains kinetic energy and move about randomly until the inter molecular forces binding them together is broken and the wax turn into liquidIn the liquid state, the molecules have more free movement, so they spread out and the distances between them increasecredits: https://brainly.com/question/2755409