In what phase do mosses spend most of their life cycle?
Answer: The familiar, green, photosynthetic moss plants are gametophytes. The sporophyte generation is very small and dependent on the gametophyte plant.
Why is it important for cells to be able to
take in nutrients and excrete (remove) waste
products?
Answer:
so that our body won't contain all the bad waste and allow all the good nutrients to help out our body.
The body of an organism utilizes the nutrient and the energy derived from the food.
The digestive system of an organism is accountable for breaking, digesting, absorbing and assimilating food.
The cells in our body perform biochemical reactions in which some of the substances are harmful or fatal to the body cells if gets stashed.
The method by which the excrement from the body is thrown out is called excretion.
So, for the appropriate functioning and for the cell to sustain discarding of wastes is required.
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18. Replicate the following four DNA strands using what you know about complementary base pairs.
a. AATACGTCCAGATTTT
c. CCCGCGGAATATACA
b. TTAACCGAGTTCAGA
d. AGGGCTACTTCAGAC
Answer:
a. TTAGCAGGTCTAAA
b. GGGCGCCTTATATGT
c. AATTGGCTCAAGTCT
d. TCCCGATGAAGTCTG
The replication can be TTATGCAGGTCTAAAA, GGGCGCCTTATATGT, AATTGGCTCAAGTCT, and TCCCGATGAAGTCTG respectively.
What is complementary base pairing?Complementary base pairing occurs when guanine always hydrogen bonds to cytosine and adenine always binds to thymine in DNA.
In comparison to the A-T bond, which always shares two hydrogen bonds, the bond between guanine and cytosine shares three hydrogen bonds.
Each strand of the double helix contains all of the information required to reconstruct the other half using the base pairing mechanism.
The strands are said to be complementary because each can be used to make the other.
Complementary base pairing describes how the nitrogenous bases of DNA molecules align with one another. The double-helix structure of DNA is also due to complementary base pairings.
TTATGCAGGTCTAAAA, GGGCGCCTTATATGT, AATTGGCTCAAGTCT, and TCCCGATGAAGTCTG are possible replications.
Thus, these are the complementary base pairing for the given codes.
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which cells requires the most food
Answer:
We need to eat and drink to survive, and so do our cells. Using a process called endocytosis, cells ingest nutrients, fluids, proteins and other molecules.
Explanation:
Why is it that nitrogen is often a limiting plant nutrient, despite the fact that the atmosphere is 80% nitrogen gas (N2)
Nitrogen is a limiting plant nutrient because the bulk of the available nitrogen in the atmosphere is not usable by plants.
Plants are not able to make use of the nitrogen in the atmosphere directly. Atmospheric nitrogen needs to be converted into usable forms before it can be accessed by plants.
The conversion of atmospheric nitrogen to usable form by plants is known as nitrogen fixation and this is achievable by the activities of certain bacteria.
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How does your body respond to an increase in the waste products of energy production
Answer:
Energy is delivered to the body through the foods we eat and liquids we drink. Foods contain a lot of stored chemical energy; when you eat, your body breaks down these foods into smaller components and absorbs them to use as fuel. Energy comes from the three main nutrients carbohydrates, protein, and fats, with carbohydrates being the most important energy source. In cases where carbohydrates have been depleted, the body can utilise protein and fats for energy. Your metabolism is the chemical reactions in the body’s cells that change this food into energy.
Most of the energy the body needs is for being at rest, known as the Basal Metabolism. This is the minimum amount of energy the body requires to maintain its vital functions such as breathing, circulation and organ functions. The rate at which energy is utilised for such functions is known as the Basal Metabolic Rate (BMR) and varies based on genetics, sex, age, height and weight. Your BMR drops as you get older because muscle mass decreases.
Optimal energy metabolism requires getting sufficient nutrients from our foods, otherwise our energy metabolism underperforms and we feel tired and sluggish. All foods give you energy and some foods in particular help increase your energy levels, such as bananas (excellent source of carbohydrates, potassium and vitamin B6), fatty fish like salmon or tuna (good source of protein, fatty acids and B vitamins), brown rice (source of fibre, vitamins and minerals), and eggs (source of protein). There are actually many foods that provide an abundant amount of energy, particularly those packed with carbohydrates for available energy, fibre or protein for a slow release of energy and essential vitamins, minerals and antioxidants.
Foods are metabolised at a cellular level to make ATP (Adenosine Triphosphate)
by a process known as cellular respiration. It is this chemical ATP that the cell uses for energy for many cellular processes including muscle contraction and cell division. This process requires oxygen and is called aerobic respiration.
Glucose + Oxygen → Carbon dioxide + Water + Energy (as ATP)
Initially, large food macromolecules are broken down by enzymes into simple subunits in the process known as digestion. Proteins are broken down into amino acids, polysaccharides into sugars, and fats into fatty acids and glycerol—through the action of specific enzymes. Following this process, the smaller subunit molecules then have to enter the cells of the body. They firstly enter the cytosol (the aqueous part of the cytoplasm of a cell) where the cellular respiration process begins.
Hope this helps. ;-]
Explanation:
10 facts about “molecules”
Where does cellular respiration take place?
A. endoplasmic reticulum
B. Golgi apparatus
С. mitochondria
D. ribosomes
what does at risk classification mean??
Answer:
Risk classification is the practice of grouping people together.
Explanation:
According to the risks they present, including similarities in costs for potential losses or damages, how frequently the risks occur, and whether steps are taken to reduce or eliminate the risks.
Need help please having trouble
Answer:
Brain
toxins
smaller
injury
protein
slow
rest
dementia
Carbon in the atmosphere (CO2)
Carbon in plants and animals
It must move through at least 5 different living things (plants/animals) - be sure that the plants/animals would actually interact with each other in nature (ex no african lions eating arctic foxes) this may require a bit of research.
Extra credit - show it becoming fossil fuels and the fossil fuels being burned to release CO2 back into the atmosphere.
In plants/animals- either how its stored in the plant/animal then the plant/animal being eaten or the steps of cellular respiration
In plants- the steps of photosynthesis (how it goes from being CO2 to glucose)
Paragraph / written story
Describe Hydrogen Bonding.
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Hydrogen bonding is a interaction between two hydrogen atoms that is very essential for life on Earth. It is notoriously seen between water molecules, and it occurs when there is a slight disbalance in electrical charge between two Hydrogen atoms, and Oxygen atom that comprise water. This slight imbalance makes the Oxygen slightly more electronegative, and the two hydrogen atoms slightly more electropostive. The reason why water when spilled forms globules for this exact reasoning. The slightly positive charged hydrogen feels an electrostatic attraction to the Oxygen atom thus forming a strong bond. An interesting fact that comes from this electrical disbalance is that when salt is added to water, water is able to conduct electricity because of this disbalance in charge it can seperate the sodium chloride lattices into ions.
renewable energy makes up approximately how much of the total u.s. energy budget?
Answer:9.2 quadrillion BTU
Explanation:
Individuals, as well as industry—and automobile manufacturers in particular have an obligation to work to reduce carbon dioxide emissions that may increase the level of greenhouse gases in the atmosphere. Agree or disagree
It is right that individuals, as well as industry—and automobile manufacturers, in particular, have an obligation to work to reduce carbon dioxide emissions that may increase the level of greenhouse gases in the atmosphere.
Carbon dioxide is a greenhouse gas, which means that it traps heat in the atmosphere. This can lead to climate change, which is already having a number of negative effects on the planet, such as rising sea levels, more extreme weather events, and changes in plant and animal life.
Individuals can reduce their carbon dioxide emissions by making changes to their lifestyle, such as driving less, using less energy at home, and eating less meat. Industry can reduce their carbon dioxide emissions by investing in new technologies, such as renewable energy and energy efficiency.
Automobile manufacturers have a special responsibility to reduce carbon dioxide emissions, as cars are a major source of greenhouse gases. They can do this by designing more fuel-efficient cars and by using alternative fuels, such as electric and hybrid cars.
It is important for everyone to do their part to reduce carbon dioxide emissions. By working together, we can help to protect the planet for future generations.
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What is the role of ATP in transport of materials
Answer:
Functions of ATP in cells
Explanation:
ATP plays a critical role in the transport of macromolecules such as proteins and lipids into and out of the cell. The hydrolysis of ATP provides the required energy for active transport mechanisms to carry such molecules across a concentration gradient.
Answer:
The role of ATP in the transport of materials :- To move substances against a concentration or electrochemical gradient, the cell must utilize energy in the form of ATP during active transport. Primary active transport, which is directly dependent on ATP, moves ions across a membrane and creates a difference in charge across that membrane.Explanation:
Hope this helps you !!The following is a short section of a DNA template before replication:
3' TACGGCTTAACC 5'
Based on your knowledge of DNA replication, which sequence would be the correct complementary strand synthesized by DNA polymerase?
A. 5' GGTTAAGCCGTA 3'
B. 5' AUGCCGTTUUGG 3'
C. 5' ATGCCGAATTGG 3'
D. 5' CCAATTCGGCAT 3'
Please Help!!
Answer I need help with this too
Explanation:
how might the shape of a muscle cell be related to its function
Answer: The muscle cells long oval shape helps it reach across to pull on its neighboring cells, while also cimpressing into a circular shape when the fibers contract. This it take up an optimal amount of space while not make the cell bulge in an uncomfortable and awkward way.
Explanation:
which division of the nervous system has two nerve fibers connecting the cns to an effector?
Megan observes four cells under a microscope and makes sketches of them as shown. Identify whether the cells are prokaryotic or eukaryotic.
Hello please asap pleaseeeeee
Answer:
first option stores water
Explanation:
vacuole stores substances
Explain how carbon dioxide is cycled between the tree and fox. Name the specific processes involved.
Answer: Cellular Respiration and Photosynthesis, The tree releases oxygen during photosynthesis, which the fox takes in during cellular respiration. ... The fox releases co2 during cellular respiration, which the tree absorbs during photosynthesis.
Explanation:
I hope this helps have a great day!!!
Fraternal twins, while conceived at the same time, are not genetically identical.
Which statement best explains why these siblings are genetically different from each other
Answer:
Fraternal twins are also called dizygotic twins. And the difference between fraternal and identical twins is that fraternal twins derive from two different eggs. Fraternal twins may be the same gender, they may have many of the same characteristics, but also may be very different from each other and, in fact, share half of their genes just like their sisters and brothers. It's important to recognize that the difference between fraternal twins and monozygotic, or identical twins, is that monozygotic twins result from the fertilization of a single egg with a single sperm and then during the embryonic development, or during the cell splits, those massive eggs split into two individuals, which later develop into two offspring.
hope this helps sorry if it doesn't
Use what you have observed to explain what occurs during a dehydration synthesis reaction.
In a dehydration synthesis reaction (Figure), the hydrogen of one monomer combines with the hydroxyl group of another monomer, releasing a molecule of water. At the same time, the monomers share electrons and form covalent bonds. As additional monomers join, this chain of repeating monomers forms a polymer.
A true-breeding tall pea plant is crossed with a true-breeding short pea plant, and all the offspring are tall. What is the most likely genotype of the offspring assuming a single-gene trait?
Answer:
(Tall: T, short: t)
Either Tt or TT
Explanation:
A tall plant with a short plant has a 100% probability of an offspring being tall.
A dog who inherits an allele for
curly hair and an allele for straight
hair has curly hair because the
allele for-
E. curly hair is recessive.
F. curly hair is dominant.
G. straight hair is dominant.
H. curly hair is inherited from both
parents.
Amphibians, such as frogs, have adapted to have thin, very permeable skin that is well supplied with blood vessels. How does this adaptation most likely help amphibians survive in aquatic environments?
A. It allows them to maintain fairly stable internal temperatures.
B. It allows them to absorb nutrients directly from their environment.
C. It allows them to release chemicals into their environment to attract mates.
D. It allows them to take in oxygen and release carbon dioxide through their skin.
Answer:
to allow easier gas exchange
Explanation:
why was it impossible to know about bacteria 5,000
years ago
Answer:
Im assuming because microscopes hadnt been invented. Also the idea of communicable diseases wasnt around so people assumed it was things like god that caused illness
Answer:
A true understanding of the physiology of these bacteria and their roles in ecology, host health, and natural product production requires their cultivation in the laboratory. Recent advances in growing these species include coculture with other bacteria, recreating the environment in the laboratory, and combining these approaches with microcultivation technology to increase throughput and access rare species. These studies are unraveling the molecular mechanisms of unculturability and are identifying growth factors that promote the growth of previously unculturable organisms. This minireview summarizes the recent discoveries in this area and discusses the potential future of the field.
Explanation:
how well an organism can survive and reproduce in its environment
it depends on what organism it is
Scientist put a sample of water into a sealed tank. water can be a solid, liquid, or a gas. At first the water was a liquid . Then, the scientists transferred energy out of the substance, and was we changed phase. What after the phase change, the water molecules moved…
ANSWERS
A. Faster and started moving away from each other
B. Faster and started moving around each other
C. Slower and started moving in place
D. Slower and started moving around each other
Answer: C. Slower and started moving in place
Explanation:
am very good at science
In which form is most of the water on Earth?
Answer:
oceans
Explanation:
The vast majority of water on the Earth's surface, over 96 percent, is saline water in the oceans.
