Answer:
Cardiac muscles are involuntary muscles. They are involved in continuous rhythmic contraction and relaxation.
Cardiomyocytes or the cardiac cells are uninucleate, cylindrical, and elongated.
Cardiac muscles display faint cross-striations which do not get fatigued under normal circumstances.
Explanation:
PLEASE HELP THIS IS TIME SENSITIVE!!!!!!!!!
Answer:
r and k
Explanation:
Answer:
top left and middle 2 go in R category
top right and bottom one go in L category.
Hope this helped! Mark brainliest pleast :3
Explanation:
The
is the matter through which a surface wave travels.
At night, the concentration of carbon dioxide in the air in a forest is high. What is the main reason for this?
Answer:
The main reason the concentration of carbon dioxide in the air in a forest is high is due to the increase in plant growth.
Explanation:
Plants release carbon dioxide because of the process of respiration in which plants take in oxygen and give out carbon dioxide. During the day, carbon dioxide enters through the tree's pores, making oxygen escape (and is consistent with the “reverse lungs” concept).
On the other hand, at night, oxygen enters through the pores, and carbon dioxide escapes, rather than oxygen.
The main reason that the concentration of carbon dioxide in the air in a forest is high as there is only respiration going on at night and no photosynthesis.
What is plant respiration?While oxygen is needed for plant respiration, carbon dioxide is also released during the process. Plants, unlike people and other animals, don't have any specific structures for the exchange of gases, but they do have stomata (found in leaves) and lenticels (found in stems) that play a part in it. Compared to people and animals, leaves, stems, and plant roots breathe air slowly.
Respiration is distinct from breathing. Breathing is a phase in respiration that is completed by both humans and animals. Plants breathe differently through a process called cellular respiration, which they engage in throughout their whole existence since the plant cell needs the energy to survive.
Plants produce glucose molecules during this cellular respiration process by using photosynthesis to absorb solar energy and transform it into glucose. Several real-world experiments show that plants can breathe. To provide their cells the energy they need to function and stay alive, all plants breathe.
Therefore, only respiration occurring at night is the reason for a high concentration of carbon dioxide in the forest air at night.
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Ocean acidification is occurring because
A. of agricultural runoff into rivers.
B. the ocean absorb about 25% of the carbon dioxide emitted into the atmosphere by human activities.
C. water changes pH as it warms.
D. overfishing is changing the structure of ecosystems, haring the plankton that regulate the pH of ocean water.
E. acid rain has worsened over the last two decades.
Answer: b
Explanation:
Its b because Ocean acidification is occurring because excess carbon dioxide (CO2) in the atmosphere is being absorbed at the surface of the ocean at an increasing rate. This excess CO2 results in more hydrogen ions, which increases the acidity of the ocean.
in a greenhouse you can control the temperature, light intensity, and carbon dioxide level in order to make it the what factor in photosynthesis
Answer:
Limiting factor
Explanation:
A limiting factor is simply anything in short supply that prevents a reaction from occurring at its maximum rate.
In a greenhouse you can control the temperature, light intensity, and carbon dioxide level which are the limiting factors in photosynthesis for the production of glucose.
What is limiting factor?A limiting factor is a variable that produce a change in output of a process or a chemical reaction. Every process has its limiting factors which bring a change in it.
So we can conclude that temperature, light intensity, and carbon dioxide level which are the limiting factors in photosynthesis.
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This is study island pls help.
Answer:
D!!! pesticides are used to keep bugs off from plants! they're all correct! GMO's are used for all of that
Answer:
D - all of the above
Explanation:
all of them are true
Which best describes how energy from the sun helps to maintain life on Earth?
Answer:
without the sun we probably be freezing that's why we need the son it keeps us warm and the sun gives use radiation energy which could help us power things.
Explanation:
Sickle-shaped red blood cells result from a mutation in the gene that codes for hemoglobin.
This mutation results in sickle-cell anemia. A partial sequence of bases from a normal
hemoglobin gene and a sequence that results in sickle-cell anemia are shown below.
Normal hemoglobin:
T-G-A-G-G-T-C-T-C-C-T-C
Sickle-cell hemoglobin: T-G-A-G-G-T-C-A-C-C-T-C
What type of mutation is depicted in this sequence?
A Substitution
B Insertion
C Deletion
D Frameshift
Option A
Option B
Option C
Option D
Answer:
Substitution
Explanation:
Substitution is when is a mutation that exchanges one base for another. In this case, the T is an A.
T-G-A-G-G-T-C-T-C-C-T-C
T-G-A-G-G-T-C-A-C-C-T-C
what role do variations have in the theory of evolution by natural selection?
Answer:
variation means that some individuals have traits better suited to the environment than others. so in natural selection everyone's adaptions and traits are different and variated. not everyone is gonna have the best adaptation, that would make everyone op.
make sure to answer it in your own words lol, if you copy and paste itll
link your teacher to this answer
Need help with the question
Answer:
plant cells
Explanation:
The genetic code is said to be universal. Which of the following lines of evidence would best support this idea?
Data that indicate that the genetic code changes frequently.
Data that are inconclusive about the nature of.
the genetic code.
Data that indicate that some organisms use one or more alternate codes.
Data that indicate that the genetic code is the same in all organisms tested so far.
Answer:
hi here is your answer....
Explanation:
Data that indicate that the genetic code is the same in all organisms tested so far.
becuase,
The genetic code is nearly universal, and the arrangement of the codons in the standard codon table is highly non-random. The three main concepts on the origin and evolution of the code are the stereochemical theory, according to which codon assignments are dictated by physico-chemical affinity between amino acids and the cognate codons (anticodons); the coevolution theory, which posits that the code structure coevolved with amino acid biosynthesis pathways; and the error minimization theory under which selection to minimize the adverse effect of point mutations and translation errors was the principal factor of the code’s evolution.
What is the best way to describe heat transferring from one end of a metal pole to the other
Answer:
If one end of a metal rod is heated, the other end also gets heated up. This is due to conduction. When one end of a metal rod is heated, the kinetic energy of the molecules at that end increases.
Explanation:
Study the graph and then complete the passage. 425 8.33 400 Atmospheric CO2 (ppmv) Seawater pCO2 (uatm) Seawater pH 8.28 375 8.23 CO2 350 8.185 PETITE 325 8.13 300 8.08 275 1955 1965 1975 1995 2005 8.03 2015 1985 Year The graph shows data collected near the Mauna Loa volcano in Hawaii from 1955 to 2015. The data includes atmospheric CO2 levels, seawater CO2 concentrations, and seawater pH readings. If the current trend continues, the seawater near Mauna Loa will likely become more alkaline due to the changing concentration of in the water.
Answer:
First blank: MORE ACIDIC
Second blank: CARBON DIOXIDE
Explanation:
GOT IT RIGHT IN PLATO
Answer:
more acidic
carbon dioxide
Explanation:
took the test got it right
An arid climate with high annual temperatures would most likely be found in what
Earth location?
Answer:
Explanation:
north of the tropical climate zone in the Northern Hemisphere, and south of the tropical zone in the Southern Hemisphere.
Answer:
Atacama Desert in Chile
Explanation:
The Atacama Desert in Chile is known as the driest place on Earth. It averages 0.04 inches of rain each year.
1. List the Biomes seen in the above example. Explain why adaptations are needed for each biome.
a. Biome one-
b. Biome two-01
C. Biome three-[ ]
d. Biome four-[ ]
Answer: i dont understand can u DM me
Explanation:
state five ideal conditions required for microbial activity in the ruminant stomach
Answer:
You can find answers on Ggle
Which statement about these cells is correct?
a.About 20 percent of the cells are dividing.
b. Most of the cells are undergoing meiosis.
c. Most of the cells will never undergo mitosis
d. About 80 percent of the cells are dividing.
About 80 percent of the cells are dividing because of the perfect structure of the cell.
What is cell division?Cell division is the process by which cells multiply that includes nuclear and cytoplasmic division. Meiosis and mitosis are their types.
So we can conclude that about 80 percent of the cells are dividing because of the perfect structure of the cell.
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Monosaccharides and amino acids are both monomers. These monomers are formed by
hydrolysis. Which statement correctly identifies a difference in the structure of
monosaccharides and amino acids? *
A)Only amino acids contain cytosine, adenine, guanine, and thymine,
B)Only amino acids join together with peptide bonds to form proteins.
C)Only monosaccharides contain carbon and hydrogen.
Answer:
B: only amino acids join together with peptide bonds to form proteins.
Amino acids are glycine and leucine, which are composed of carbon, hydrogen, oxygen, and nitrogen. Carbon, hydrogen, and oxygen make up carbohydrates, which can be either little or big molecules, hence option B is correct.
What is the difference between monosaccharides and amino acids?
The building blocks that makeup proteins are polymeric molecules made up of a chain of amino acids. The biological role of galactose, mannose, fructose and ribose is also significant.
The most prevalent monosaccharide in living things is glucose, which also serves as a structural support system and an enzyme to catalyze chemical processes.
Therefore, the amino group of the additional amino acid creates a peptide bond with the polymer's carboxylic acid group, hence option B is correct.
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What are some examples of inhibitory proteins?
Answer:
Explanation:
proteins that regulate chromatin remodeling also affect the cell cycle, the ADNP gene; proteins that inhibit cellular energy metabolism also inhibit the cell cycle, ALDH1L1; proteins that inhibit cancer cell growth and chromatin condensation can also act as cell cycle inhibitor proteins.
I hope this helps you
identify one hormone present in a female that is involved in regulating the reproductive cycle?
Answer: The hormones controlling the female reproductive system include gonadotropin-releasing hormone (GnRH), follicle-stimulating hormone (FSH) and leutenizing hormone (LH), all of which are produced in the brain; oestrogen and progesterone produced by the ovaries and the corpus luteum; and human chorionic gonadotropin (HCG
Which option identifies the best action to take in the following scenario?
As Phil begins working, he notices the blade of his circular saw is dull.
O He should apply more pressure.
He should clean the material.
He should use a new blade.
O He should heat the blade.
Choose the correct statement below.
A: Sea breezes occur during the daytime as wind blows from the land toward the sea.
B: Sea breezes occur during the daytime as wind blows from the sea toward the land.
C: Sea breezes occur during the nighttime as wind blows from the land toward the sea.
D: Sea breezes occur during the nighttime as wind blows from the sea toward the land.
Answer:
During the day, the sun heats up both the ocean surface and the land. ... The wind will blow from the higher pressure over the water to lower pressure over the land causing the sea breeze. that above is showing the answer so the answer is B
Explanation:
17. The scientific study of human populations is called
A. ecology
B. demography
C. natural selection.
D. transition.
Answer:
B. Demography
Explanation:
Answer:
B
Explanation:
Demography is the statistical study of populations, especially human beings. Demographic analysis can cover whole societies or groups defined by criteria such as education, nationality, religion, and ethnicity.
What is a chromosome? Why are they important? Please be descriptive in your own words
How do humans regulate water levels in the body?
Answer:
Body water homeostasis is regulated mainly through ingested fluids, which, in turn, depends on thirst. Thirst is a sensation created by the hypothalamus, the thirst center of the human body.
Explanation:
Select the correct location on the image.
Which structure fuses to form a diploid zygote during sexual reproduction?
Answer: the top one
Explanation:
what does flora and fauna means
Answer:
Flora and fauna refer to plants and animals in the broadest sense of the words, encompassing pretty much all life on Earth.
I hope it's helpful!
The language of r and a is what
Answer:
R is a programming language and free software environment for statistical computing and graphics supported by the R Foundation for Statistical Computing. The R language is widely used among statisticians and data miners for developing statistical software and data analysis.
Explanation:
what is chemical effect ?
a process that involves rearrangement of molecular or ionic structure, as distinct from a change in physical form or a nuclear reaction
Humans affect Earth in many ways. The use of fossil fuels, the clear-cutting of forests, and controlled burns can affect the carbon cycle. Which process can help counteract these human interactions? photosynthesis respiration decomposition transpiration
Answer:
Photosynthesis
Explanation:
Photosynthesis takes in CO2 from the atmosphere and utilizes it to form sugars/oxygen.
The equation: 6CO2+6H2O -> C6H12O6 + O2
Respiration will do the opposite and actually release CO2 into the atmosphere
Decomposition will also release CO2 as a byproduct
Transpiration I don't believe has anything to do with removing or putting CO2 into the atmosphere. It's about water movement!
Answer:
The answer is A) Photosynthesis!
Explanation:
Edge, got a 100