Answer:
Krebs cycle
Explanation:
The Krebs cycle is a set of chemical events that all aerobic organisms employ to generate energy by converting acetate (which comes from carbs, lipids, and proteins) to carbon dioxide. There are various alternatives to the TCA cycle in theory, but it appears that the TCA cycle is the most efficient.
Answer: Mitochondria, using oxygen available within the cell convert chemical energy from food in the cell to energy in a form usable to the host cell. The process is called oxidative phosphorylation and it happens inside mitochondria. ... In heart muscle cells about 40% of the cytoplasmic space is taken up by mitochondria.
Explanation:
The process is called oxidative phosphorylation and it happens inside mitochondria. In the matrix of mitochondria the reactions known as the citric acid or Krebs cycle produce a chemical called NADH. NADH is then used by enzymes embedded in the mitochondrial inner membrane to generate adenosine triphosphate (ATP).
Hope it helps you
Meiosis Which of the following best describes the image to the right? OB 0 0 0 0 A. Meiosis 2 B. Mitosis h C. Binary fission D. Meiosis 1
Cell division is a process by which the cell divides into two or four daughter cells. The image shows meiosis II, cell division. Thus, option A is correct.
What is meiosis II?Meiosis II is a stage of meiotic cell division that only occurs in the body's germinal cells and results in the production of four daughter cells with a ploidy count of the half.
It is comparable to mitotic division, in which cells go through the prophase, anaphase, metaphase, and telophase stages. But they differ in the production of the four haploid daughter cells.
The meiotic division II is characterized by the separation of the sister chromatids resulting in decreases in the chromosomal numbers and the ploidy of the cell.
Therefore, the image shows the meiotic II cell division. Option A is correct.
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You can turn on and turn off ____ to make different proteins.
Answer:
Genes
Explanation:
In this situation its called gene regulation
i don't know how to do this one
Answer:
what don't you know how to do?
The part of the lymphatic system that filters the blood is which of the following?
A. Lymph nodes
B. lymph
C. Lymphatic Vessels
A forest fire
would be
followed by
which event?
A. grocyth of lichens
B. secondary succession
C. glacier retreating
Answer:
its B the answer
Explanation:
I hope this helps
Answer:
Secondary succession
Explanation:
When a disaster happens (flood, storm, fire) and the living things in that area are disturbed, secondary succession occurs after some soil, roots, or other living things remain intact and recolonize the area.
Like this Hair Follicle Cell, EVERY cell in your body, contains:
A. half a set of DNA
B. a whole set of DNA
GUYS PLS HELP ASAP!!!
Answer:
B: A whole set
Explanation:
The only cells in your body that don't are sex cells. ie. Eggs and Sperm
Ype the correct answer in the box. Spell all words correctly. What is the process of using natural resources efficiently to ensure their availability for future generations known as? is the process of using natural resources efficiently to ensure their availability for future generations.
Answer:
The correct answer is - Sustainable development.
Explanation:
Sustainable development is the process of using or utilizing the natural resources in the present in such an efficient way that there will be resources for future generations without compromising their needs.
It is essential in the current situation as people overexploiting the natural resources that it is quite possible there will very few resources will be left for future generations.
An ecosystem is defined as
A.a group of organisms and the habitat they share.
B.the food chain in an area.
C.a predator and prey relationship.
D.the creation of carbohydrates by green plants.
Answer:
An Ecosystem is a community of Living Organisms and Non living components of their Environment
OPTION A IS YOUR ANSWER!!!
Answer:
A: a group of organisms and the habitat they share.
Explanation:
Answer a is the correct answer.
HIV binds to Helper T cells of your immune system.
A. True
B. False
Answer: True
HIV infects a type of white blood cell in the body's immune system called a T-helper cell (also called a CD4 cell). These vital cells keep us healthy by fighting off infections and diseases. HIV cannot reproduce on its own. Instead, the virus attaches itself to a T-helper cell and fuses with it (joins together).
Explanation:
T-cells, the thymus cells, work in a similar way but destroy infected cells rather than manufacture antibodies. In HIV infection, the body mounts a very strong antibody response in the first few weeks that partially works, bringing the viral load down from millions to, on average, about 50,000 copies/ml.
Answer:
The answer is true...
Explanation:
HIV infects a type of white blood cell in the body’s immune system called a T-helper cell (also called a CD4 cell). These vital cells keep us healthy by fighting off infections and diseases.
HIV cannot reproduce on its own. Instead, the virus attaches itself to a T-helper cell and fuses with it (joins together). It then takes control of the cell’s DNA, makes copies of itself inside the cell, and finally releases more HIV into the blood. HIV will continue to multiply and spread throughout the body – a process called the HIV lifecycle.
In this way, HIV weakens the body’s natural defences and over time severely damages the immune system. How quickly the virus develops depends on a person’s general health, how quickly they are diagnosed and start antiretroviral treatment, and how consistently they take their treatment
Please help :( I don’t wanna fail
Answer:
You need to create a food chain with a producer, consumer, and decomposer. an example of this would be grass > zebra > lion.
Why do stars seem to twinkle?
Your answer: Starlight is light from dying stars that give off interrupted light.
Correct answer: Shifting currents of air low in the atmosphere bend starlight, causing it to miss our eyes in fractions of moments.
How fast do raindrops fall in still air?
Correct: 7-18 miles per hour
The people of the West Indies were the first people to name hurricanes. How did they first come up with the storm names?
Correct: Storms were named after the saint on whose day the storm made landfall.
Where is the safest place to be during a tornado?
Correct: in a ditch
According to the Fujita Tornado Intensity Scale, a category F5 tornado, the most dangerous, has what range of wind speeds?
Your answer: 40–72 miles per hour
Correct answer: 261–318 miles per hour
Which U.S. city has the highest average number of sunny days per year?
Your answer: Las Vegas, Nevada
Correct answer: Yuma, Arizona
The annual cost of snow removal for streets and highways in the U.S. is estimated to be about how much?
Your answer: $20 billion
Correct answer: $2 billion
Between 1950 and 1999, the highest average number of deaths caused by tornadoes in the United States occured in which month?
Correct: May
The greatest snowfall on a single day in recorded history occurred in Silver Lake, Colorado, in April, 1921. Approximately how many inches fell?
Your answer: 100
Correct answer: 75
In 1971, Hurricane Ginger, the longest-lasting Atlantic Ocean hurricane on record, lasted for how many days?
Your answer: 44
Correct answer: 27
Matthias Schleiden and Theodor Schwann made which contribution to science?
A. Discovered that new organisms do not spontaneously arrive in suitable conditions, but must be brought there.
B. Discovered the process plants use for energy, photosynthesis.
C. Discovered a basic principle of chemistry, that all matter is composed of atoms.
D. Discovered a basic principle of biology, that all plants and animals are made of cells.
Matthias Schleiden and Theodor Schwann made a significant contribution to science as they discovered a basic principle of biology, that all plants and animals are made of cells. So the correct option is option D.
Matthias Schleiden and Theodor Schwann made the contribution of discovering a fundamental principle in biology known as the cell theory. In the 1830s, they independently proposed that all plants and animals are composed of cells. Their work laid the foundation for our understanding of the structural and functional units of life. Together, the contributions of Schleiden and Schwann formed the basis of the cell theory, The correct option is option D.
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10
Which of the following are true about DNA?
Choose all that apply:
It is a double helix
It contains thymine
It is the "recipe" for proteins
It is made of amino acids
The Darwinian theory of organic evolution through natural selection affected American religion by a raising awareness of the close spiritual kinship between animals and human beings. b turning most scientists against religion. c causing a revival of the doctrine of original sin. d sparking the rise of new denominations based on modern science. e creating a split between religious conservatives who denied evolution and accomodationists who supported it
Answer:
.e creating a split between religious conservatives who denied evolution and accomodationists who supported it
Explanation:
The Darwinian theory of organic evolution proposed that all forms of life evolved from more primitive life by differential survival and reproduction (i.e., by natural selection). Moreover, creationism is the religious belief that humans were created by God, whereas accommodationists refer to the persons that endorse cooperation and concession to the viewpoint of the opposition. In this case, Darwinian theory challenged the traditional religious anthropocentric viewpoint on human origins (i.e., humans descended from ape-like creatures by natural selection).
A 3:1 ratio of tall to short pea plants appearing in the f2 generation lends support to the law of
Answer:
Mendelian inheritance
Explanation:
Don't fail me now brainly!!!!
21. For each of the following, state the type of input energy and the useful output
energy.
a. battery
b. gas-powered weed-eater
c. bedside lamp
d. horn on a bicycle
Input Energy
Useful Output Energy
4
Battery
Gas-Powered Weed-eater
Bedside lamp
Horn on a bicycle
Answer:
Explanation:
if you get the nintindo 64 throw it out a window then call the garbage man hit the folks den shake his hand he will give you the math answer and you have to cll hm on the newest flip phone out right now
Which of the following is not a health effect caused by exposure to volcanic gases?
backaches
suffocation
dizziness
headaches
Answer:backaches
Explanation:
The volcanic gases would mainly affect your ear, nose or throat and because your back does not rely solely on one of this it shouldn’t be affected
Answer:
backaches
Explanation:
List down the processes that can cause radioactive decay of an element?
Answer:
Radioactive decay is the loss of elementary particles from an unstable nucleus, ultimately changing the unstable element into another more stable element. There are five types of radioactive decay: alpha emission, beta emission, positron emission, electron capture, and gamma emission
Explanation:
What features do you think separates the Black bear from the Grizzly Bear?
Answer:
Fur colorSizeFacial structureThis is all I have for now, I'm sorry I'm not an expert :c
Answer:
One of the primary distinctions between the two species may be noticed even while they are young: The black bear's profile is considerably flatter than the grizzly's, which has a "dished" face that bends down from its forehead to its nose. Only a fraction of Yellowstone's bear voyeurs.
Explanation:
Hope this helps!
Please mark me as Brainlineast.
can natural selection happen in the hardy-weinberg equilibrum
Answer:
yes
Explanation:
The Hardy-Weinberg equilibrium can be disturbed by a number of forces, including mutations, natural selection, nonrandom mating, genetic drift, and gene flow. ... Because all of these disruptive forces commonly occur in nature, the Hardy-Weinberg equilibrium rarely applies in reality.
plz help! Which of the following describes species diversity of a community?
The number of different species present in the community
The measure of species richness and relative abundance of different species
The proportional abundance of different species in a community
The number of mutualistic interactions in a community
Answer:
The proportional abundance of different species in a community
Answer:
The measure of species richness and relative abundance of different species
And your Answer is Best management practices (BMPs) are methods that have been determined to be the most effective and practical means of preventing or reducing non-point source pollution to help achieve water quality goals. BMPS includes both measures to prevent pollution and measures to mitigate the pollution.
Answer:
Use Fertilizers Wisely.
Apply Pesticides Wisely.
Use Landscaping Practices that Prevent Erosion.
Wash Your Vehicle Wisely.
Dispose of Pet Waste.
Use and Dispose of Household Chemicals Safely.
Evaluate Existing Roads
give two examples of what a living thing can do once it has converted the energy from food into usable forms of energy.
Answer:
When the chemical energy in food is transferred to cells in the body, the energy can be transformed into energy used by the body to do many things like run, ride a bike, do the dishes, pump the heart, and keep the body warm.
Two examples of what a living thing can do once it has converted the energy from food into usable forms of energy are growth, reproduction, and movement, and by using the energy, they survive in the ecosystem.
What is the significance of the energy from food?Energy from food can be obtained, and that energy is further used for many reasons, such as metabolism and movement, and a living organism can use it to power its muscles for movement such as running and swimming. Apart from that, the energy is used for growth and reproduction, which allow an organism to develop and produce offspring.
Hence, two examples of what a living thing can do once it has converted the energy from food into usable forms of energy are growth, reproduction, and movement, and by using the energy, they survive in the ecosystem.
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Viruses are considered living cells?
A. True
B. False
There are 20 different amino acids
Answer: Hi, there your answer is:
Valine, Leucine & Isoleucine
Alanine
Arginine
Glutamine
Lysine
Aspartic acid
Glutamic Acid
Proline
Cysteine
Threonine
Methionine
Histidine
Phenylalanine
Tyrosine
Tryptophan
Asparagine
Glycine
Serine
Explanation:
[tex]what \: is \: chlorophyll \: \: \: {?} [/tex]
What is chlorophyll?
Answer:-Chlorophyll is a green pigment which helps plants in the process of photosynthesis.
It is only present in Green plants.They allow green plants to absorb sunlight.- TheExtraterrestrial
2. The long-term survival of any species of organism is possible only if the organisms can -
A migrate when temperatures change C find protection from predators
B reproduce successfully
D locate a constant food source
(If you want to give me the rest of the answers I will like that also)
Answer:
may be the answer is B. reproduce successfully
Protists represent an important evolutionary step between and A. fungi, plants B. bacteria, animals O C. single celled organisms, multicelled organisms D. plants, animals Peser Selection
Protists represent an important evolutionary step between single-celled organisms and multi-celled organisms.
Protists have similar DNA to the DNA of cyanobacteria. This similarity show the evolutionary relationship between cyanobacteria and algae in which cyanobacteria is a single celled organism whereas algae is multi-celled organism so from this discussion we can conclude that protists is an important evolutionary step between single celled organism and multi-celled organism.
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Give any 2 significance of nitrogen cycle to green plant
Nitrogen is the most abundant element in our planet’s atmosphere. Approximately 78% of the atmosphere is made up of nitrogen gas (N2).
Plant uptake of nitrogen compounds
Once nitrogen is converted into compounds like ammonium and nitrate, these can be taken up from soils by plants and then the nitrogen can be used to form macromolecules like proteins and nucleic acids.
Nitrogen is a crucially important component for all life. It is an important part of many cells and processes such as amino acids, proteins and even our DNA. It is also needed to make chlorophyll in plants, which is used in photosynthesis to make their food.
As part of these life processes, nitrogen is transformed from one chemical form to another. The transformations that nitrogen undergoes as it moves between the atmosphere, the land and living things make up the nitrogen cycle.
Fixation
Nitrogen in its gaseous form (N2) can’t be used by most living things. It has to be converted or ‘fixed’ to a more usable form through a process called fixation. There are three ways nitrogen can be fixed to be useful for living things:
If you forget your water bottle when you go for a long walk on a warm day,
what signal would most likely be sent to your kidneys?
Answer:
C
Explanation:
On detecting less amount of water in blood the hypothalamus gives signals for releasing the anti-diuretic hormone which causes kidneys to remove lesser amount of water from the blood.