PLZZ HELP THIS DUE TODAY AND I STRESS OUT PLZZ HELP ME ONLY GIVE ME THE CORRECT ANSWER PLZZZ this due today !!!!HELPP

1. The space exploration program has hired you for advice on how to keep astronauts healthy in the space shuttle. How can the program's doctors make sure the astronauts’ bodies work well enough to exercise in space?

A. The doctors could make sure that the astronauts’ bodies can make enough energy by getting enough sleep.

B. The doctors could make sure the astronauts’ stomachs are getting the molecules they need from food and air.

C. The doctors could make sure the astronauts’ cells are getting the molecules they need from food and air.

D. The doctors could make sure the astronauts’ cells are getting different types of molecules from food.

2. Some types of syrup are almost entirely made of glucose molecules. If a person ate some syrup like this, what would happen to her ability to exercise?

A. It would be harder for her to exercise because her digestive system would need to use more enzymes to combine the glucose molecules together.

B. It would be easier for her to exercise because glucose moves through the circulatory system faster than other food molecules usually do.

C. Nothing would happen to her ability to exercise, but her respiratory system would not work as hard, since glucose has more energy than oxygen molecules.

D. Nothing would happen to her ability to exercise, but her digestive system would not work as hard, since glucose is already small enough to get to her cells.

3. Doctors tested a patient and found that his cells contained normal levels of oxygen and glucose molecules, and no starch molecules. Will this patient be able to exercise normally?

A. Yes, the glucose and oxygen molecules can react together to release energy for the body to function.

B. No, his digestive system is not breaking down food molecules; his cells need starch molecules to react with glucose, which releases energy.

C. No, his body systems are working, but he needs to eat different food; in cells, only amino acids can react with oxygen to release energy.

D. Yes, as long as his cells have glucose, they don’t need anything else to release energy for the body to function

4. Some problems with the digestive system make it very difficult for the body to digest enough food. Why would it be harder to exercise when you have a digestion problem like this?

A. You would not be able to sleep, which would make you too tired to exercise.

B. Your cells would have molecules from air, but would not get enough molecules from food.

C. You would need to breathe in a lot more air because your body would have fewer molecules from food.

D. You would not get any of the molecules your cells need to exercise.

5. The test report above shows the level of molecules in different parts of the patient’s body. How would you expect this patient to do on an exercise test? (use the image only for this question!!!)

6. Two soccer teams, the Bears and the Panthers, played games at the same time in two different locations. The Bears game was played at sea level, where there is a normal amount of oxygen. Before their game, the players on the Bears ate a lunch of mostly starch. The Panthers game was played at very high altitude, where there is less oxygen. The players on the Panthers ate a lunch of starch and protein. Which team probably did better in their game? *

A. The Bears probably did better because their cells released energy from oxygen reacting with glucose, which was broken down from starch in the digestive system.
B. The Panthers probably did better because their cells released energy from breaking down protein in the digestive system, which then combined with oxygen in cells.
C. The teams did equally well because their digestive systems just need to break down starch into glucose for cells to release energy.

D. The teams did equally well because glucose from starch can react with oxygen or proteins to release energy.

7. A student thinks that the human body only works properly when cells are getting molecules from food and molecules from air. Is the student correct?

A. Yes, the body only works when cells get molecules from food and molecules from air.
B. No, the body only works when cells are getting molecules from different types of food.
C. No, the body only works when the lungs get molecules from air, and the stomach gets molecules from food.

D. No, the body works as long as cells are making all the molecules they need.

8. Stella’s respiratory system is not working well. Why is this a problem for her ability to exercise?

A. Her respiratory system will not be able to break down molecules from air into oxygen.
B. Her cells will not work well when they have low levels of oxygen.

C. Her digestive system will have to work twice as hard to get the same amount of energy from glucose molecules.

D. Her cells will not work because molecules from air will be too large for her body to use.

Answer:

Protozoa are single-celled eukaryotes

Explanation:

Eukaroytes are organisms whose cells have nuclei

Answer:

Protozoa are very small organisms which often live inside larger animals.

Answer:

they got there because of the chemicals that the carbon has

Explanation:

Carbon from plants and animals that lived millions of years ago is stored in rocks like limestone and fossil fuels like coal and oil. Slow geologic processes trapped the carbon from these organisms' deaths and converted it into these natural resources.

To learn more about :  Fossil fuels

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Answer:

They both represent physical weathering.

Explanation:

There is no chemical process that takes place in either process.

⇒Both represents physical weathering

Answer:

D

in poorer countries, they use much less energy resources

Answer:

I'm pretty sure it's choice D.

Explanation:

I believe it's choice D because in poorer countries, there are less resources to go around. Therefore it's near impossible to use more resources than used in North America

Your answer is A good Luck!

Answer:

plant and animal cells are very similar because they are both eukaryotic cells.

Explanation:

Answer:

They are both similar because they perform the same job, they both have a nucleus, and mitochondria. I hope this helps!

Explanation:

Answer:

interphase aka "c"

Explanation:

Answer:

A body of air with horizontally uniform temperature, humidity, and pressure.

Hope this helped! :D

Answer:

radar - a system for detecting the presence, direction, distance, and speed of aircraft, ships, and other objects, by sending out pulses of high-frequency electromagnetic waves that are reflected off the object back to the source.

isotherm - a line on a map connecting points having the same temperature at a given time or on average over a given period.

isoline - a line on a map or chart along which there is a constant value (as of temperature or rainfall)

isobar - a line on a map connecting points having the same atmospheric pressure at a given time or on average over a given period.

automated - operated by largely automatic equipment.

Explanation:

Got these from a dictionary...hope it helps

Answer:

a diagram, speech photos and classifications

Explan

Answer:

well a food chain is where there is a line of organisms eat one another

Explanation:

so if you have the sun the sun gives energy to plants like grass so a grasshopper eats the grass and gains that energy. The grasshopper is  a primary consumer and then a frog eats the grasshopper the frog is the secondary consumer then a bird eats the frog like a chicken and they are the tertiary consumers. i believe we are tertiary consumers bc they dont get eaten by anything else we are the top of the food chain

*sorry for any bad spelling that's the best i could do thank you

Answer:

ok i looked      eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee eeeeeeeeeee eeeeeeeeeeeeeeeeeeee eeeeeeeeeeee

Answer:

C

Explanation:

Prokaryotic cells do not have a nucleus.

Insulin is a hormone that regulates the breakdown of glucose for energy insulin produced by bacteria can be used to help treat people with diabetes.

Numerous toddlers and teenagers suffer from the dangerous condition known as type 1 diabetes. Insulin, a hormone that controls blood sugar levels, is no longer produced by the pancreas as a result of the condition.

The smallest blood vessels in the body eventually suffer harm from high blood sugar levels. In order for blood sugar to be utilized as fuel by the body's cells, insulin aids in its absorption.

The liver receives a signal from insulin to store blood sugar for later use. When blood sugar enters cells, blood sugar levels fall, which tells insulin to do the same.

Therefore, glucose from the blood can be absorbed by the cells in the muscles, fat, and liver by insulin, hence option A is correct.

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Answer: yes because A habitable zone (HZ) in astronomy is a region of space where conditions are best for life to form as on Earth. Planets in these areas are the most likely to have extraterrestrial life. The habitable zone may also be called the "life zone", "comfort zone", "green belt" or "Goldilocks zone".

Explanation:

Answer:

A pairs with T or U, G pairs with C

Explanation:

"Constraints imposed by the molecular structure of DNA and RNA on the formation of hydrogen bonds among the four purine and pyrimidine bases such that adenine pairs with thymine or uracil, and guanine pairs with cytosine."

Answer:

A

Explanation: They are reactants because they present before the reaction. Hope this helps!

Answer:

its A uwu

Explanation:

Answer:

Like a prokaryotic cell, a eukaryotic cell has a plasma membrane, cytoplasm, and ribosomes. However, unlike prokaryotic cells, eukaryotic cells have:

1. a membrane-bound nucleus

2. numerous membrane-bound organelles (including the endoplasmic reticulum, Golgi apparatus, chloroplasts, and mitochondria)

3. several rod-shaped chromosomes

Because a eukaryotic cell’s nucleus is surrounded by a membrane, it is often said to have a “true nucleus. ” Organelles (meaning “little organ”) have specialized cellular roles, just as the organs of your body have specialized roles. They allow different functions to be compartmentalized in different areas of the cell.

Or:

Animal Cells

Centrosome:

The centrosome is a microtubule-organizing center found near the nuclei of animal cells. It contains a pair of centrioles, two structures that lie perpendicular to each other. Each centriole is a cylinder of nine triplets of microtubules. The centrosome (the organelle where all microtubules originate) replicates itself before a cell divides, and the centrioles appear to have some role in pulling the duplicated chromosomes to opposite ends of the dividing cell. However, the exact function of the centrioles in cell division isn’t clear, because cells that have had the centrosome removed can still divide, and plant cells, which lack centrosomes, are capable of cell division.

Lysosomes:

In addition to their role as the digestive component and organelle-recycling facility of animal cells, lysosomes are considered to be parts of the endomembrane system. Lysosomes also use their hydrolytic enzymes to destroy pathogens (disease-causing organisms) that might enter the cell. A good example of this occurs in a group of white blood cells called macrophages, which are part of your body’s immune system. In a process known as phagocytosis or endocytosis, a section of the plasma membrane of the macrophage invaginates (folds in) and engulfs a pathogen. The invaginated section, with the pathogen inside, then pinches itself off from the plasma membrane and becomes a vesicle. The vesicle fuses with a lysosome. The lysosome’s hydrolytic enzymes then destroy the pathogen.

Plant Cells

Chloroplasts:

Like the mitochondria, chloroplasts have their own DNA and ribosomes (we’ll talk about these later!), but chloroplasts have an entirely different function. Chloroplasts are plant cell organelles that carry out photosynthesis. Photosynthesis is the series of reactions that use carbon dioxide, water, and light energy to make glucose and oxygen. This is a major difference between plants and animals; plants (autotrophs) are able to make their own food, like sugars, while animals (heterotrophs) must ingest their food.

Like mitochondria, chloroplasts have outer and inner membranes, but within the space enclosed by a chloroplast’s inner membrane is a set of interconnected and stacked fluid-filled membrane sacs called thylakoids. Each stack of thylakoids is called a granum (plural = grana). The fluid enclosed by the inner membrane that surrounds the grana is called the stroma. The chloroplasts contain a green pigment called chlorophyll, which captures the light energy that drives the reactions of photosynthesis. Like plant cells, photosynthetic protists also have chloroplasts. Some bacteria perform photosynthesis, but their chlorophyll is not relegated to an organelle.

Vacuoles:

Vacuoles are membrane-bound sacs that function in storage and transport. The membrane of a vacuole does not fuse with the membranes of other cellular components. Additionally, some agents such as enzymes within plant vacuoles break down macromolecules. Plant cells each have a large central vacuole that occupies most of the area of the cell. The central vacuole plays a key role in regulating the cell’s concentration of water in changing environmental conditions. Have you ever noticed that if you forget to water a plant for a few days, it wilts? That’s because as the water concentration in the soil becomes lower than the water concentration in the plant, water moves out of the central vacuoles and cytoplasm. As the central vacuole shrinks, it leaves the cell wall unsupported. This loss of support to the cell walls of plant cells results in the wilted appearance of the plant. The central vacuole also supports the expansion of the cell. When the central vacuole holds more water, the cell gets larger without having to invest a lot of energy in synthesizing new cytoplasm. You can rescue wilted celery in your refrigerator using this process. Simply cut the end off the stalks and place them in a cup of water. Soon the celery will be stiff and crunchy again.

Answer:

The function of the nucleus is to regulate cell activity.

Explanation:

sorry if this wasnt good enough :(

Answer:

Explanation:

tempature Humidty or pressure.

Answer:

tempature Humidty or pressure.

Explanation:

Answer:

I think it's C. Sorry if i'm wrong.

Explanation:

Answer:

The correct answer is A.Water freezing.

Explanation:

Because odys seyware said so.

Answer:

A

Explanation:

Answer:

i guess and the three one

C.The continental crust is the coolest region

Explanation:

Answer:

a). have a constant composition

Explanation:

Let's take water, a compound, as an example. Regardless of how much water you have, there will be one oxygen molecule every two hydrogen molecules. It has a constant composition. The same case is with elements. You'll have a constant amount of atoms per mole. Meanwhile, in mixtures, the composition of everything mixed together is not constant as it is not equal everytime.

Besides, the rest of the choices do not even make sense in the first place...

Answer:

The difference between saturated and unsaturated fat lies in the number of double bonds in the fatty acid chain. Saturated fatty acids lack double bonds between the individual carbon atoms, while in unsaturated fatty acids there is at least one double bond in the fatty acid chain.

Explanation:

Answer:

color.

Explanation:

Although color is the most obvious of mineral properties it is the least reliable for identification purposes. This is because the color of a mineral can be altered by slight chemical impurities within its crystal structure.

The color of a mineral is the least reliable for identifying minerals. Therefore, option D is correct.

A mineral species is identified by two distinct characteristics: its crystal structure and chemical composition. Each mineral has a unique three-dimensional arrangement of the atoms that make up its structure. Its physical characteristics, including cleavage and hardness, are impacted by its regular geometry.

Because they are composed of many elements, minerals have unique qualities. Iron, calcium, magnesium, silicon, carbon, phosphorus, oxygen, and many more naturally occurring elements can be found in minerals. Based on how many electrons each of these native elements have, they have various qualities.

The color of a mineral is the least reliable for identifying minerals. Therefore, option D is correct.

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Answer: Human Cells

Explanation: Humans cells are composed of eukaryote cells. Each organelle in a eukaryote has a distinct function. Because of their complex level of organization, eukaryotic cells can carry out many more functions than prokaryotic cells. To summarize it is human cells.