This is the question I need help with.

Answer:

When you breathe in, the diaphragm moves downward toward the abdomen, and the rib muscles pull the ribs upward and outward. This makes the chest cavity bigger and pulls air through the nose or mouth into the lungs.

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Answer:

respiratory system

Explanation:

The respiratory system is the network of organs and tissues that help you breathe. It includes your airways, lungs, and blood vessels. The muscles that power your lungs are also part of the respiratory system. These parts work together to move oxygen throughout the body and clean out waste gases like carbon dioxide.

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Answer:

Para comer alimentos sanos y frescos.

Explicación:

Recomiendo a mi familia los alimentos que aún no están vencidos o que son frescos porque los alimentos frescos hacen que nuestra condición de salud sea buena en comparación con los alimentos vencidos. Hay un crecimiento de patógenos como bacterias, hongos, etc.en los alimentos que los hacen dañinos para las personas y causan intoxicación alimentaria en las personas que los consumen, por eso tenemos que ver las etiquetas presentes en los alimentos para verificar su condiciones.

Answer:

C

Explanation: hope it helped

Explanation:

If the concentration of molecules outside the cell is very high relative to the internal cell concentration, the rate of diffusion will also be high. If the internal and external concentrations are similar (low concentration gradient) the rate of diffusion will be low.

Answer:

D. tất cả các ý trên

Explanation:

Answer: your body replaces around 330 billion cells per day. At that rate, your body is making over 3.8 million new cells every second.

Answer:

330 billion cells

Explanation:

330 cells every day are replaced equivalent to about 1 percent of all our cells. 3.8 million every second

Explanation:

1. DNA double helix

2. adenine and thymine cytosine and guanine

3. To contain genetic materials

Answer:

Looks hard

Explanation:

I dont know how to do this

Actual width of the cholera bacterium between points X and Y is: 6.5 mm × (1,000 um/1 mm) = 6,500 um.

The cholera bacterium is a single-celled, rod-shaped bacterium called Vibrio cholerae. It is a type of bacteria that can cause severe diarrhea and dehydration if ingested through contaminated water or food.

The actual width of the cholera bacterium between points X and Y can be calculated as follows:

Width of the bacterium on the diagram = 0.06 cm

Magnification = 50,000 times

Actual width of the bacterium = (width on the diagram) / magnification

= (0.06 cm) / (50,000)

= 0.0000012 cm = 0.012 µm (micrometers)

Thus, the structure C is flagellum and its function is to provide locomotion.

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Your question seems incomplete, the probable complete question is:

Answer: The abdomen mainly the heart and brain.

Explanation: Corona virus mainly attacks the lungs

clogging them up with mucus making it hard to breath

this can disrupt airflow throught the blood.

that there once lived humans on mars

Answer: That mars was once habitable.

Explanation:

mars was habitable just like earth, until it’s magnetosphere weakened and it lost its atmosphere.

Answer:

The correct answer is E) a significant proportion of mutations are not acted upon by natural selection.

Explanation:

The neutral theory, proposed by Motoo Kimura in 1968, proposes that part of the molecular variability produced by mutations that exists in populations is natural variability, that is, a large part of the genetic variation observed in populations is due to random fluctuation of genetic variants that are neutral, on which natural selection hardly acts, so they are not an evolutionary force since they do not contribute predominantly to natural selection and proposes genetic drift as an evolutionary mechanism.

there will be changes in the number of chromosomes

A mutation is a change in a gene. Mutations happen when a mistake is made when a cell’s chromosomes are copied. Mutations introduce variation into a population by changing the genome and introducing new changes that might or might not be beneficial.

It is defined as the change that is caused in terms of certain type of change that is introduced by knowingly or unknowingly.

A mutation is a change in a gene. Mutations happen when a mistake is made when a cell’s chromosomes are copied.  Suppose if a genetic codon AUG has to be inserted by the mRNA which earlier has to code for methionine and was a start codon but with time U got replaced and the new codon is made which changes the expression.

Mutations that are born are none other than insertion of some other amino acids or codon , deletion of some bases and other mutations as well which leads to the variation in the species.

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Answer:1503.3 mL

Explanation:

So we can know that it is direct proportion, so the volume at 55.0 C is 55/30 X 820 so it is 1503mL

Explanation:

Answer:

D

Explanation:

Looks correct if you go with D

Genetically diverse population make a species more likely to survive a change to the environment because they are more likely to have some individuals adapted for survival. Thus, the correct option will be D.

Genetic variation is the difference in the DNA molecule among different individuals or the differences between different populations of a species. The multiple sources of genetic variation include changes which could result from mutation and genetic recombination.

Mutations are the ultimate sources of genetic variation in a population, however other mechanisms, such as genetic drift, also contribute to it, as well. The populations which are genetically diverse are more likely to have some individuals adapted for survival.

Therefore, the correct option will be D.

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Explanation:

Conduction, convection and radiation are the modes of heat transfer:

Conduction:

Microscopic level of heat transfer

Also called as thermal diffusion(takes place due to atomic vibrations) and is highly invisible

Primarily occurs in solid-solid systems and stagnant liquids

Convection:

Macroscopic level of heat transfer

Primary occurs in fluids(involves bulk movement of fluids)

2 types of convection are possible — with external source of energy (forced convection) and without external source of energy (free convection)

Radiation:

Transfer occurs through electromagnetic waves

No medium is required unlike conduction and convection. Radiation can occur even in vacuum.

These are different processes of transferring energy from one place to another.

Radiation is the sunlight and (heat). It travels as electromagnetic wave and does not need matter to transfer energy. Hence radiation is the only mode of transferring energy in vaccuum, for example, light of visible and invisible wavelengths reaches from the sun and other stars as electromagnetic radiaton. Human body emits heat wave as radiation.

Convection and conduction refers to energy transfer through the motion of matter. The difference is how the molecules of matter move during the energy transfer.

Convection is that mode of energy transfer when matter also transfer from one place to another during energy transfer. Molecules of liquids and gases can move. So convection occurs in liquids and gases. It is visible when water is boiled on a gas burner.

Molecules of solids are too tightly bound to move. They vibrate about some average positions in space. Conduction is that mode of energy transfer when matter on average is not transferred from one place to another. Propagation of sound through solid wall is an example.

Answer: Gigantism is most commonly caused by a benign tumor on the pituitary gland called a pituitary  adenoma. A number of disorders may also cause it, including neurofibromatosis.

Explanation:

McCune-Albright syndrome (MAS)

Answer:

Try out a turkey timer. Pop-up turkey thermometers work by applying Charles' Law. The thermometer is placed in the turkey. As the temperature rises and the turkey cooks, the air in the thermometer expands to pop the plunger

Answer:

This organism is able to carry out both photosynthesis and cellular respiration. That's why cellular respiration is essential for the survival of the Euglena.

A sequence of chemical processes known as cellular respiration convert glucose into ATP, which can then be used as energy for a variety of bodily functions.

Glycolysis, the citric acid cycle, and oxidative phosphorylation are the three basic processes that take place during cellular respiration. The citric acid cycle happens in the mitochondrial matrix, oxidative phosphorylation happens on the inner mitochondrial membrane, and glycolysis happens in the cytoplasm.

Glucose, ATP, and NAD+ are the initial reactants and ATP and H2O are the end products of cellular respiration. The enzymes phosphofructokinase-1, pyruvate dehydrogenase, and isocitrate dehydrogenase control the rate of cellular respiration.

Disorders that interfere with cellular respiration often impair one or more of the enzymes necessary for it, such as succinyl-CoA synthase or pyruvate kinase.

Therefore, A sequence of chemical processes known as cellular respiration convert glucose into ATP, which can then be used as energy for a variety of bodily functions.

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you need ot put the thing

Answer: Answer: Option D is the correct one. Science consists of methodsical activities that formulate hypotheses by using observations and experiments in order to address scientific questions.

Explanation:

I can't see the questions but i did this before sooo I may or may not be correct

Characteristics such as appearance, reproduction, mobility, and functionality are just a few ways in which living organisms are grouped together. These specialized groups are collectively called the classification of living things.

Scientists examine the physical and chemical properties of organisms to classify them. Thus, the correct option is C.

The physical characteristics of organisms include the macroscopic and microscopic characteristics such as body's structure, the type of specialized tissue present, the skin type, the cellular structure

The chemical characteristics of organisms include the cellular composition, the type of proteins present, the organ/tissue system present, the DNA composition, the enzymes present, the metabolic processes that occur.

Thus, the correct option is C.

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Answer:

The correct answer is - facilitated transport and secondary active transport.

Explanation:

GLUT transporter is a glucose transporter that helps in moving the glucose to its concentration gradient through the cell membrane. It is a transport protein that uses passive transport of facilitated transport that moves down their concentration gradient and therefore does not require chemical energy from ATP hydrolysis in the transport step.

Sodium-based GLUT or SGLT is also a glucose transport protein that exhibits secondary active transport as it develops electrochemical potential difference by moving ions out of the cell membrane, this gradient allows the movement of ions and molecules.

Hey buddy I am here to help!

Chromatin fibers are coiled and condensed to form chromosomes. Chromatin makes it possible for a number of cell processes to occur including DNA replication, transcription, DNA repair, genetic recombination, and cell division.

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Answer:

D - Each piece contains the same proportion of different elements

Explanation:

just took the quiz on edge 2021

D, I did the test just now and got 100% :)

Answer: Translation takes place inside structures called ribosomes, which are made of RNA and protein. Ribosomes organize translation and catalyze the reaction that joins amino acids to make a protein chain. A ribosome is shown with mRNA and tRNA.

Explanation:

Hope it helps you if not sorry

hope this helps

Answer:

The menstrual cycle is regulated by hormones. Luteinizing hormone and follicle-stimulating hormone, which are produced by the pituitary gland, promote ovulation and stimulate the ovaries to produce estrogen and progesterone.