Which statement is true about water molecules?
a) The hydrogen atoms do not share electrons
b) Water molecules move randomly around each other
c) Water molecules cannot dissolve many substances
d) The oxygen atom has a negative charge

Answer: 3

Explanation:

Nitrogen, the most abundant element in our atmosphere, is crucial to life. Nitrogen is found in soils and plants, in the water we drink, and in the air we breathe. It is also essential to life: a key building block of DNA, which determines our genetics, is essential to plant growth, and therefore necessary for the food we grow. But as with everything, balance is key: too little nitrogen and plants cannot thrive, leading to low crop yields; but too much nitrogen can be toxic to plants, and can also harm our environment. Plants that do not have enough nitrogen become yellowish and do not grow well and can have smaller flowers and fruits. Farmers can add nitrogen fertilizer to produce better crops, but too much can hurt plants and animals, and pollute our aquatic systems. Understanding the Nitrogen Cycle—how nitrogen moves from the atmosphere to earth, through soils and back to the atmosphere in an endless Cycle—can help us grow healthy crops and protect our environment.

Answer:

Nitrogen fixing bacteria in the ground

Explanation:

Answer:

i think the answer is B

Explanation:

Answer:

interphase

Explanation:

The cell cycle has two major phases: interphase and the mitotic phase (Figure 1). During interphase, the cell grows and DNA is replicated. During the mitotic phase, the replicated DNA and cytoplasmic contents are separated, and the cell divides.

The answer is D) competition.

We can see from the problem that the two animals are competing with one another. As the number of rabbits increases, the competition between the food source increases. This is why predators are important for the environment, as the level out the playing field for both animals.

I hope this helps! :)

Answer:

1. Regularly brush teeth

2. Keep away from excess sugary or acidic foods

3. Make sure to have lots of Vitamin D

Answer:

c. Mediastinum

Explanation: is correct. post protected

Answer:

Autotrophs is the answer

Example : plants

Plants and some bacteria (e.g., cyanobacteria) carry out autotrophic nutrition, synthesizing their own organic molecules using light or inorganic substances.

Organisms that carry out autotrophic nutrition are capable of producing their own organic compounds and energy sources using inorganic substances. One example of an organism that performs autotrophic nutrition is plants. Plants possess specialized structures called chloroplasts that contain chlorophyll, a pigment responsible for capturing sunlight energy.

Through the process of photosynthesis, plants convert carbon dioxide and water into glucose, a form of stored energy. This energy is then used by the plant for growth, development, and other metabolic processes. Additionally, some bacteria and protists are also capable of autotrophic nutrition. These organisms utilize different mechanisms such as chemosynthesis or photosynthesis to synthesize their own organic compounds and derive energy from non-organic sources, such as inorganic chemicals or light, respectively.

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Answer:

it can be partially cured

Explanation:

its like cancer u can cure it to stop spreading kinda but you can still have a high high risk or getting it agaian and theres a process

Answer:

its D

Explanation:

which exam are you doing?

Answer:

A variety of genes are involved in the control of cell growth and division. ... Tight regulation of this process ensures that a dividing cell's DNA is copied properly, any errors in the DNA are repaired, and each daughter cell receives a full set of chromosomes.

Explanation:

Mark me brainly please.

Answer:

Gel loading dye is typically made at 6X concentration (0.25% bromphenol blue, 0.25% xylene cyanol, 30% glycerol). Loading dye helps to track how far your DNA sample has traveled, and also allows the sample to sink into the gel. ... It is important to use the same running buffer as the one used to prepare the gel.

Answer:

Significance. Seafloor spreading helps explain continental drift in the theory of plate tectonics. When oceanic plates diverge, tensional stress causes fractures to occur in the lithosphere.

Explanation:

Answer:

Fossils are important evidence for evolution because they show that life on earth was once different from life found on earth today. ... Paleontologists can determine the age of fossils using methods like radiometric dating and categorize them to determine the evolutionary relationships between organisms

Explanation:

Fossils are important evidence for evolution because they show that life on earth was once different from life found on earth today. ... Paleontologists can determine the age of fossils using methods like radiometric dating and categorize them to determine the evolutionary relationships between organisms

The preserved remnants or traces of extinct animals, plants, and other organisms are known as fossils. Because they demonstrate that earlier life on Earth was distinct from the life observed today, fossils are crucial pieces of evidence for evolution.

According to the idea of evolution, modern life forms have evolved from more ancient ones.

The original theory suggested that this occurred slowly and gradually, but fossil evidence suggests that the process occasionally went wrong and engaged in some very bizarre experiments.

Therefore, they demonstrate that earlier life on Earth was distinct from the life observed today, fossils are crucial pieces of evidence for evolution.

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Answer:A

Explanation:

Yes yes because it is required for photosynthesis to take place. ... he reactants that go into photosynthesis come out of respiration. Plants can survive on their own, because they make their own food. Animals on the other hand, cant survive without any food source

Answer:

1 Nose

2 Mouth

3 Pharynx

4 Larynx

5 Trachea

6 Bronchi

7 Bronchioles

8 Alveoli

Explanation: are correct for your numbers in edg

Following are the parts of Respiratory system:

1.Nose

2. Mouth

3. Pharynx

4. Larynx

5. Trachea

6. Bronchi

7. Bronchioles

8. Alveoli

The respiratory system is the network of organs and tissues which helps with breathing that includes the airways, lungs, and blood vessels. The muscles that power the lungs are also part of the respiratory system. They work together to move oxygen throughout the body and to clean up waste gases like carbon dioxide.

Respiratory system consists of following parts like

Nose--> Mouth--> Pharynx --> Larynx --> Trachea --> Bronchi --> Bronchioles --> Alveoli

The respiratory system has many functions others than inhaling (breathe in) and exhaling (breathe out), it:

Thus, following are the parts of Respiratory system:

1.Nose

2. Mouth

3. Pharynx

4. Larynx

5. Trachea

6. Bronchi

7. Bronchioles

8. Alveoli

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Answer:

Researchers have found that mitochondria and chloroplasts in eukaryotic cells have their own dna. this dna is different from the dna in a eukaryotic cell's nucleus. chloroplasts and mitochondria use their own dna and ribosomes to make some organelle-specific proteinswhat statement is best supported by this information? a. mitochondria and chloroplasts could exist outside of modern cells.b. modern cells could exist without mitochondria and chloroplasts.c. early eukaryotic cells engulfed prokaryotic cells, which later became mitochondria and chloroplasts.d. early prokaryotic cells engulfed eukaryotic cells, which later became mitochondria and chloroplasts.

Explanation:

Answer:

A

Explanation:

A) all cells contain DNA, and DNA is all composed of adenine, thymine, guanine, and cytosine.

B) not all cells have a nucleus. For example, prokaryotes have no nucleus

C)Not all cells have a cell wall.(Animal cells don't)

D) not all cells have mitochondria (Prokaryotes don't)

Answer:

I think it is D

Explanation:

Sorry If I'm wrong

Answer: The Golgi apparatus

Explanation: The Golgi apparatus modifies, sorts, and packages different substances for secretion out of the cell, or for use within the cell.

The organelle that processes and sorts proteins to be shipped is the Golgi apparatus. The Golgi apparatus is a stack of flattened sacs that is located near the nucleus of the cell.

It is responsible for processing and sorting proteins that have been made by the endoplasmic reticulum. The Golgi apparatus modifies proteins, packages them, and then ships them to their final destinations.

The Golgi apparatus has three main functions:

Modification: The Golgi apparatus modifies proteins by adding sugars, phosphates, and other molecules to them. This modification changes the properties of the proteins and makes them more functional.

Sorting: The Golgi apparatus sorts proteins into different vesicles. These vesicles are then transported to different parts of the cell, where the proteins are used.

Shipping: The Golgi apparatus ships proteins to different parts of the cell by fusing the vesicles with the cell membrane.

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Answer:

inter molecular forces and van der wall forces are weak forces of attraction.

Explanation:

hope this helps :)

#followformore

Answer:

d. Erector spinae

Explanation: is correct

Answer: See explanation

Explanation: They could have cold resistances since they are being born in a cold climate.

Answer:

A

Explanation:

Edge2022

The evidence of climate change on continents that supports the theory of continental drift is similar coal fields on different continents. Hence option B is correct.

The theory of continental drift suggests that the Earth's continents were once joined together in a single landmass called Pangaea, which began to break apart around 200 million years ago.

This idea was first proposed by German scientist Alfred Wegener in the early 20th century, who noticed the striking similarities between the coastlines of Africa and South America.

Coal is formed from the remains of plants that lived millions of years ago, and its distribution can provide clues about how continents were once connected.

Coal fields found on different continents that match in age and composition indicate that the continents were once joined together in a larger landmass.

This supports the theory of continental drift, which states that the continents were once part of a single supercontinent that later broke apart and drifted into their present positions.

This evidence suggests that coal-forming swamps once existed in locations that are now separated by oceans and that these locations were once connected.

Hence option B similar coal fields on different continents is correct.

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Fish.

I hope this is right. ^^

Answer:

B. Fish

Hope this helps!

Explanation:

The presence of a receptor for that particular hormone

Answer:

If I am not wrong 1 and A

2 and C

3 and B

Answer:

I do not know this question I

Explanation:

Hahahh and I will be unable to attend the meeting on the 27th July 4th and I will not be able to attend the meeting on the 27th of this month so that I can make the necessary changes to the meeting on the 27th of this month and will have to wait until I get back to the office tomorrow and

Answer:

the Somatosensory Cortex.

Explanation:

im not sure that is just the anwser.