why is the root of a plant unable to absorb mineral salts from the soil if it is given a poison that prevent respiration?​

Answer:

Key points

Humans—and other complex multicellular organisms—have systems of organs that work together, carrying out processes that keep us alive.

The body has levels of organization that build on each other. Cells make up tissues, tissues make up organs, and organs make up organ systems.

The function of an organ system depends on the integrated activity of its organs. For instance, digestive system organs cooperate to process food.

The survival of the organism depends on the integrated activity of all the organ systems, often coordinated by the endocrine and nervous systems.

Introduction

If you were a single-celled organism and you lived in a nutrient-rich place, staying alive would be pretty straightforward. For instance, if you were an amoeba living in a pond, you could absorb nutrients straight from your environment. The oxygen you would need for metabolism could diffuse in across your cell membrane, and carbon dioxide and other wastes could diffuse out. When the time came to reproduce, you could just divide yourself in two!

However, odds are you are not an amoeba—given that you're using Khan Academy right now—and things aren’t quite so simple for big, many-celled organisms like human beings. Your complex body has over 30 trillion cells, and most of those cells aren’t in direct contact with the external environment.^1

1

start superscript, 1, end superscript A cell deep inside your body—in one of your bones, say, or in your liver—can’t get the nutrients or oxygen it needs directly from the environment.

How, then, does the body nourish its cells and keep itself running? Let's take a closer look at how the organization of your amazing body makes this possible.

Multicellular organisms need specialized systems

Most cells in large multicellular organisms don't directly exchange substances like nutrients and wastes with the external environment, instead, they are surrounded by an internal environment of extracellular fluid—literally, fluid outside of cells. The cells get oxygen and nutrients from this extracellular fluid and release waste products into it. Humans and other complex organisms have specialized systems that maintain the internal environment, keeping it steady and able to provide for the needs of the cells.

Different systems of the body carry out different functions. For example, your digestive system is responsible for taking in and processing food, while your respiratory system—working with your circulatory system—is responsible for taking up oxygen and getting rid of carbon dioxide. The muscular and skeletal systems are crucial for movement; the reproductive system handles reproduction; and the excretory system gets rid of metabolic waste.

Because of their specialization, these different systems are dependent on each other. The cells that make up the digestive, muscular, skeletal, reproductive, and excretory systems all need oxygen from the respiratory system to function, and the cells of the respiratory system—as well as all the other systems—need nutrients and must get rid of metabolic wastes. All the systems of the body work together to keep an organism up and running.

Answer:

The abdominopelvic and thoracic cavities are subdivisions of the body cavity.

Explanation:

*the cranial and spinal cavities are parts of the body cavity.

Answer:

Nucleic acid is an important class of macromolecules found in all cells and viruses.  acid (DNA) encodes the information the cell needs to make proteins.

Explanation:

Answer:

Plants, algae and many species of bacteria can make their own sustenance through the process of photosynthesis. They harness sunlight to drive the chemical reactions in their bodies that produce sugars. ... As a rule, animals cannot photosynthesise, but all rules have exceptions

Explanation:

Answer:

No because only plants are go through photosynthesis

Explanation:

the correct answer is Option D, drought resistance !

hope this helps you.

Answer:

Scientists rely on and use statistics to summarize, characterize, analyze, and compare data

Explanation:

Hope this helps :)

Answer:

The first organelle that is found in an animal cell is the cell wall. The cell wall that is only found in plants cells helps the cell with structure. The second organelle not found in an animal cell is the chloroplast. The chloroplast contains chlorophyll and is the site of photosynthesis. Both of these organelles are only in plant cells and not in animal cells.

Explanation:

Answer:

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Explanation:

Answer:

A molecular formula consists of the chemical symbols for the constituent elements followed by numeric subscripts describing the number of atoms of each element present in the molecule.

Explanation:

MARK MEAS BRAINLIEST PLEASE

Answer:

ATP

Explanation:

Adenosine triphosphate, or ATP, is the primary carrier of energy in cells

Answer:

tubular reabsorption

Explanation:

In the loop of henle, the filtrate continues to exchange solute and water with the renal medulla and peritubular capillary network.

Cellular respiration is represented by

Glucose +Oxygen → Carbon dioxide +water

What is cellular respiration?

Cellular respiration is the process by which food, in the form of sugar (glucose), is transformed into energy within cells.

What is glucose ?

Glucose is a monosaccharide containing six carbon atoms and an aldehyde group, and is therefore an aldohexose.

What is Carbon dioxide?

Carbon dioxide (CO2) is an important heat-trapping (greenhouse) gas, which is released through human activities such as deforestation and burning fossil fuels, as well as natural processes such as respiration .

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Answer:

genome, cloning

Explanation:

Bacterial plasmids carry a genome against a specific antibiotic. The process whereby bacterial cells take up the plasmid with the resistance gene is called cloning.

Answer:

genome, gene of resistance

Explanation

bacterial plasmids may carry a genome against a specific antibiotic. the process whereby bacterial cells take up the plasmid with the resistance gene is called

gene of resistance.

hope this helps you

Product

The correct answer is product

Answer:

Enzymes are type of Carbohydrates that help chemical processes happen in cells.true or false

The scientific method has been the seven-step procedure to conduct the experiment to research the subject matter. The sixth step, collection, and analysis of the data support and refutes the hypothesis.

The scientific method has been the procedural method that involves a series of steps and uses the empirical method to solve the problem and reach the solution that explains the question. It includes seven steps to reach conclusive findings.

The sixth step, collection, and analysis of the data is the type that involves evaluation of the data of the experiment so as so to prove the reliability of the hypothesis. The findings can refute and support the experimental hypothesis.

Therefore, the sixth step refutes and supports the hypothesis.

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Answer:

b respiration is breathing, the main goal of aerobic respiration has nothing to do with light energy

Answer:

I would try to protect my self and others because a virus can spread all round so I would stay far from the host

Answer: d

Explanation: just did it on edg

Answer:

Sandy soil

Explanation:

Sandy soil consists of large particles that are loosely packed with large air spaces between them.

Since sand particles are quite large, they cannot fit close together, so there are large spaces between them. These spaces are filled with air.

Answer:

An increase in the speed of the molecules competes with the attraction between molecules and causes molecules to move a little further apart. A concentration gradient is the difference in the concentration of a substance between two areas. It occurs when the concentration of particles is higher in one area than another.

Explanation:

Answer: ok

Explanation:same

Answer:

a water molecule is made up of one oxygen atom and two hydrogen atoms, the oxygen atom being in the top center and the two hydrogen atoms on either side below it.

Answer:

1. false

2. false

3. true

4. false

Answer:

1. false

2. false

3. true

4. false

Explanation:

Answer:

Image result for the chloroplast is a membrane-bound organelle that is surrounded by an outer membrane. aside from the outer membrane of the chloroplast, how many other types of membranes can be found inside the chloroplast?

Like mitochondria, chloroplasts are surrounded by two membranes. The outer membrane is permeable to small organic molecules, whereas the inner membrane i

Chloroplast DNA (cpDNA) in photosynthetic land plants is also a circular genome, which varies in size from about 120,000 to 247,000 nucleotides, largely because of a large inverted repeat that includes genes for the rRNA subunits.s less permeable and studded with transport proteins.

Explanation:

There are 2 other types of membranes that can be found inside the chloroplast along with the outer membrane, they are the inner membrane and a thylakoid membrane.

Chloroplast is a cell organelle that is found in plant cells which are responsible for carrying out the process of photosynthesis inside a plant.

Along with the outer membrane, the chloroplast have an inner membrane and a thylakoid membrane.

These membranes play an important role in the functioning of the chloroplast, helping to compartmentalize and protect the organelle from the surrounding environment.

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Answer:

A chemical bond between the phosphate group of one nucleotide and the sugar of a neighboring nucleotide holds the backbone together. Chemical bonds (hydrogen bonds) between the bases that are across from one another hold the two strands of the double helix together.

Explanation:

Answer:

melting

Explanation:

did it on edge :)

Answer:

arachnids _c

Explanation:

that is the right answer I believe.

Answer:

A

Explanation:

Two plates pushed together create a convergent fault.