Plz help. For my grades

Answer:

umm i would help but i dont know what this is i'll try

Explanation:

avradge star:white dwarf, nutron star

massive star:super nova, planitary nubla

Answer:

1,3

2, organs

3, i do not know

4, i do not know

Answer:

Without mitochondria (singular, mitochondrion), higher animals would likely not exist because their cells would only be able to obtain energy from anaerobic respiration (in the absence of oxygen), a process much less efficient than aerobic respiration. ...

Explanation:

Mitochondria are rod-shaped organelles that can be considered the power generators of the cell, converting oxygen and nutrients into adenosine triphosphate (ATP). ATP is the chemical energy "currency" of the cell that powers the cell's metabolic activities. This process is called aerobic respiration and is the reason animals breathe oxygen. Without mitochondria (singular, mitochondrion), higher animals would likely not exist because their cells would only be able to obtain energy from anaerobic respiration (in the absence of oxygen), a process much less efficient than aerobic respiration. In fact, mitochondria enable cells to produce 15 times more ATP than they could otherwise, and complex animals, like humans, need large amounts of energy in order to survive.

mitochondrion is different from most other organelles because it has its own circular DNA (similar to the DNA of prokaryotes) and reproduces independently of the cell in which it is found; an apparent case of endosymbiosis. Scientists hypothesize that millions of years ago small, free-living prokaryotes were engulfed, but not consumed, by larger prokaryotes, perhaps because they were able to resist the digestive enzymes of the host organism. The two organisms developed a symbiotic relationship over time, the larger organism providing the smaller with ample nutrients and the smaller organism providing ATP molecules to the larger one. Eventually, according to this view, the larger organism developed into the eukaryotic cell and the smaller organism into the mitochondrion.

in most animal species, mitochondria appear to be primarily inherited through the maternal lineage, though some recent evidence suggests that in rare instances mitochondria may also be inherited via a paternal route. Typically, a sperm carries mitochondria in its tail as an energy source for its long journey to the egg. When the sperm attaches to the egg during fertilization, the tail falls off. Consequently, the only mitochondria the new organism usually gets are from the egg its mother provided. Therefore, unlike nuclear DNA, mitochondrial DNA doesn't get shuffled every generation, so it is presumed to change at a slower rate, which is useful for the study of human evolution. Mitochondrial DNA is also used in forensic science as a tool for identifying corpses or body parts, and has been implicated in a number of genetic diseases, such as Alzheimer's disease and diabetes.

i hope this is helpful

have a grest day!!:))

Answer:

5.Triglycerides are a type of fat. They are the most common type of fat in your body. They come from foods, especially butter, oils, and other fats you eat. ... Your body changes these extra calories into triglycerides and stores them in fat cells. When your body needs energy, it releases the triglycerides.

6.High LDL cholesterol increases your risk for heart disease and stroke. Weight gain. Many high-fat foods such as pizza, baked goods, and fried foods have a lot of saturated fat.

7.provide energy , primary form of energy storage , insulate and protect

Explanation:

The ans for the fourth question-

To a  food sample (solution), add 2cm^3 of ethanol, then add 2cm^3 of distilled water.The test tube should then be lightly shaken

If the result is positive (If a lipid is present), a cloudy emulsion will form in the test tube.

Answer:

B

Explanation:

Natural selection increases the frequency of adaptive mutations in a population over time.

Answer:

C the data the profile symptoms

Explanation:

The team that required prior to drawing the conclusion related to the case should be option c. where the profile shows the symptoms of various patients.

The main reason of excessive sweating is the dehydration that means we are not drinking sufficient water due to which the risk of the kidney stones should be increased.

If the protein diet is high, or there is high salt intake, or high sugar intake due to this also the stones chances are high.

Therefore, the option c is correct.

learn more about kidney here: https://brainly.com/question/1423255

Answer: Option C

Explanation:

When waves of water approach the beach, they do so as an angle because they have been slowed down by the first parts of the beach that they have encountered.

When they hit the beach at an angle, they come back to the water and keep doing so like the movement shown in option D. This constant motion moves the sand and other particles on the beach progressively and the current that does so is the Longshore current which moves parallel to the coastline.  

Answer:

Alloploidy results when two species mate to produce viable offspring. In the example shown, a normal gamete from one species fuses with a polyploidy gamete from another. Two matings are necessary to produce viable offspring. The cultivated forms of wheat, cotton, and tobacco plants are all allopolyploids.

Explanation:

Answer:

Summary. The photosynthesis chemical equation states that the reactants (carbon dioxide, water and sunlight), yield two products, glucose and oxygen gas. The single chemical equation represents the overall process of photosynthesis.

Answer:

How far away the epicenter is, C.

Explanation:

Seismographs record earthquake strength too.

Answer and Explanation:

Answer:

Interneuronal communication occurs via chemical messengers that are released from the presynaptic neuron. These are called neurotransmitters and they act by binding to receptors on the postsynaptic neuron. This binding opens Ion channels, which can either hyperpolarize or depolarize the postsynaptic neuron membrane. This action is kept relatively short by either the decomposition or the reuptake of neurotransmitters from the synaptic cleft.

Explanation:

Neurons are communicated to each other by a process known as synapsis. Synapsis occurs when the presynaptic neuron sends a message to the postsynaptic neuron. Vesicles from the presynaptic membranes are sent carrying the chemical messenger in their interior. This messenger is called a neurotransmitter and is released by exocytose to the synaptic space.  Then the neurotransmitter goes forward to the postsynaptic membrane. When it reaches this last membrane, the neurotransmitter binds its receptor triggering an answer and opening ion channels. This binding produces depolarization of the cell called excitatory postsynaptic potential. If the signal molecule keeps being in the synaptic space, it keeps linking to its receptor and causing a postsynaptic answer. To stop this process, the neurotransmitter must be taken out from the synaptic space by enzymatic degradation/deactivation or Reuptake. There are receptors located in the presynaptic membrane that can capture de molecule to store it back in new vesicles, for posterior use.                  

Answer:

True

Explanation:

Answer: he has a great smile and I don't spot a slouch, he looks aware of everything going on around him... I say the kid has potential energy

Answer:

B and D

Explanation:

Answer:

b,d

Explanation:

Answer:

i think iam not sure it is C

Answer:

K

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Answer:

and now you're trash

Explanation:

Answer:

10- 15

Explanation:

When practicing deep breathing, it is best to repeat the steps for minutes to start and then increase the time as 10 to 15 minutes.

Deep breathing is also called diaphragmatic breathing, abdominal breathing, abdominal breathing, and step breathing. As you take a deep breath, the air entering through your nose fills your lungs completely and lifts your lower abdomen.

Deep breathing seems unnatural to many of us. There are multiple reasons for this. For one thing, body image in our culture negatively affects breathing. Women (and men) tend to pull their abs together because flat bellies are considered attractive. This impedes deep breathing and gradually causes shallow "chest breathing" to appear normal, increasing tension and anxiety.

Shallow breathing limits the range of motion of the diaphragm. The lowest part of the lungs does not get enough oxygenated air. This can make you feel short of breath and anxious.

Deep abdominal breathing promotes complete oxygen exchange. That is, the beneficial exchange of incoming oxygen for outgoing carbon dioxide. Not surprisingly, it can slow the heart rate and lower or stabilize blood pressure.

Therefore, When practicing deep breathing, it is best to repeat the steps for minutes to start and then increase the time as 10 to 15 minutes.

To learn more about breathing, refer to the link:

https://brainly.com/question/3887418

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Answer:

true

Explanation:

Eating more whole foods will help you cut down on calories from the added fats and sugars we get from processed and fast foods. Whole grains. You might think the benefits of whole grains have mostly to do with fiber, but there's so much more than that

Answer:

The correct answer is - A. Growth 1, Synthesis, Growth 2.

Explanation:

The cell cycle has three important phases Interphase, M -phase and cytokinesis. Interphase is the laongest phase of eukaryotic cell cycle. This phase shows no observational change in the cell, however, it collects nutrients, generates protein and replicates DNA and prepare the cell for the M- phase.

Interphase has 3 phases G1, S, and G2 phase. G1 phase is the phase that collects nutrients and increase the size of the cell for the cell division. S phase or synthesis phase is the phase takes maximum time in cell divivon and acompanied by protein generation, duplication of the genetic material. G2 phase is preparatory phase that prepeare the cell before the cell enter in the M - phase.

Answer: Down syndrome and cystic fibrosis

Answer:

downsyndrome

cystic fibrosis

Explanation:

Answer:

The fatty acid tails saturated or unsaturated is discussed below in details.

Explanation:

Fatty acids contain a carboxylic acid association and a great hydrocarbon series, which can either be saturated or unsaturated. A saturated fatty acid tail only contains carbon-carbon individual bonds, and an unsaturated fatty acid has at the slightest individual carbon-carbon twice or triples bond.

Answer:

saturated and unsaturated fatty acids

Explanation:

Saturated fats are a type of fat in which the fatty acid chains have all or predominantly single bonds.Rich sources of dietary saturated fatty acids include butter fat, meat fat, and tropical oils.

An unsaturated fat is a fat or fatty acid in which there is one or more double bond in the fatty acid chain. these include avocados, olive oil, fatty fish and nuts or seeds.

Answer:

1 protein

Explanation:

Answer: all of these exercise modes, but less likely with low intensity endurance training.

Explanation: exercise increases respiration requirement and therefore oxygen requirement. Energy stores (glycogen) are used first but with then the body needs to maintain energy production at an increased level. There is a limit to how quickly energy can be supplied from respiration and additional energy is generated anaerobically with the by product being lactic acid. An ‘oxygen debt’ is incurred because normal homeostasis requires the metabolism of lactic acid and energy for repair of any cellular damage, requiring oxygen consumption above what is required for normal resting metabolism. It is possible in elite athletes that during low intensity training they may be able to operate aerobically for an extended period.