the diagram shows a beaker of water and molecules of red dye at the beginning of an experiment (time 1) and the same beaker of water and molecules of red dye after 30 minutes (time 2) which of the following best explains what happened?

a- molecules of red dye moved by diffusion from a higher concentration to a lower concentration
b- molecules of red dye moved by active transport from a higher concentration to a lower concentration
c- molecules of water moved by osmosis from a higher concentration to a lower concentration
d- molecules of water moved by active transport from a higher concentration to a lower concentration

The sum of the decreases of the electric potential along the path will be 2.004V.

From the complete information, the total current(I) is given as:

= 2/(4 + 3 + 5)

= 2/12

= 0.167A

V3 = I × 3

= 0.167 × 3

= 0.501V

V4 = I × 4

= 0.167 × 4

= 0.668V

V5 = I × 5

= 0.167 × 5

= 0.835V

Therefore, the sum of the decreases of the electric potential along the path will be:

= 0.501V + 0.668V + 0.835V

= 2.004V.

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Explanation:

It's important to use hard agar with soft agar overlay because The hard agar underneath the soft agar overlay is where you make a lawn streak of your bacteria.

It's important to use hard agar with soft agar overlay because The hard agar underneath the soft agar overlay is where you make a lawn streak of your bacteria.

A trusted technique for determining viral concentration in relation to infectious dose is the plaque assay. In order to perform the test, a monolayer of virus-infected cells must be counted to determine how many plaque forming units (pfu) were generated.

When a virus-infected cell lyses, plaques form, which trigger a cycle of surrounding cell lysis and infection. Crystal violet staining of the preserved cell monolayer allows for the visualization of plaques. 

The plaque assay was initially created as a virological assay to count and measure bacteriophage infectivity. Later, it was used to count viruses that infect mammals as well.

The technique's fundamental premise is to assess a single infectious virus' capacity to develop a "plaque" on a confluent monolayer culture of cells.

Therefore, It's important to use hard agar with soft agar overlay because The hard agar underneath the soft agar overlay is where you make a lawn streak of your bacteria.

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Answer:

This is true

Explanation:

Savannas have less precipitation and more warm, consistent weather.

Fear-inducing messages can increase persuasion. A fear request is a persuasive message that tries to provoke fear in order to divert behavior through the threat of upcoming danger or harm.

Fear messages that let the audience know they can achieve the urged behavior or that the behavior will have a positive result are more useful than fear request messages without word of recommended actions.

Thus, option "C" is correct, Fear-inducing messages can increase persuasion.

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From the results in the experiment the best conclusion is : ( B ) they are not valid because the student did not control all the variables that can affect plant growth

The growth variables such as amount of light and amount of water need for the plants to grow effectively are not controlled in the experiment. The first group was hand watered while the second group was watered with a sprinkler therfore the amount of water reaching both groups are not the same therefore the experimental conclusion is not valid.  

Hence we can conclude that From the results in the experiment the best conclusion is : ( B ) they are not valid because the student did not control all the variables that can affect plant growth.

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Answer:

B on edge

Explanation:

Answer:

B is a carrier of cystic fibrosis

Explanation:

Since cystic fibrosis is a recessive disease the person must have a mutation in both copies of the CFTR gene in order to have the illness.

Answer:

B

Explanation:

I took the test and got thsi question right

The main electron acceptor in aerobic respiration is oxygen; while some electron acceptors in anaerobic respiration are sulfur and nitrate.

Respiration is a biological process that involves the production of energy. This can occurs with oxygen (aerobic) or without it (anaerobic).

An electron acceptor is a molecule that can accept electrons, which is essential to produce energy.

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Answer:

Trophic means involving, or feeding habits or food relationship of different organisms in a food chain.

Answer:

They are all composed of one or more cells.

Explanation:

Answer:

The average emission of SO2 would be 4.55 lb/MWh, and the average emission of NOx would be 2.1 lb/MWh.

Explanation:

Answer:

With a NOx release speed of 2.1 lb/MWh, the run-of-the-mill SO2 spilling over rate would be 4.55 lb/MWh.

Explanation:

This is Plato answer but slightly paraphrased.

E.

Photosynthesis takes place in Chloroplasts

In plants, the process photosynthesis occurs in chloroplasts which contain the chlorophyll. The chloroplast is seen on the mesophyll of the leaves. So in the given figure, chloroplast is present in the part 'E'. The correct option is E.

The process by which the autotrophs convert light energy into chemical energy which is later used to perform the cellular activities is defined as the photosynthesis. The chemical energy is stored in the form of sugars, which are produced from water and carbon-dioxide.

Photosynthesis generally takes place in the specialized structure called the chloroplasts which consist of chlorophyll. It is the chlorophyll which absorb light energy from the sun. The majority of chloroplasts is present in the leaves which absorbs sunlight for the photosynthesis to occur.

So chloroplast is found in all green plants and algae. They are called the food producers of plants. This cell organelle is not found in animal cells.

Thus the correct option is E.

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Sense organs ~

Sense organs are the ones that responds to external stimulus, such as heat, light, chemicals, etc

For example :

Eyes are sense organs that responds to visual stimulus like change in light intensity.

Ears are sense organs that respond to sound stimulus, like Loud music, or change in intensity of sound.

Answer:

D

Explanation:

Since thes all could transport them.

The two types of tests used by the denstist to determine whether the inflamatory process has gone into the peripical tissues are : Palpation and Percussion

Inflammatory process is response of the immune system such as the white blood cells respond to external stimuli ( harmful ) such as pathogens and cells that have damaged. To determine whether the process has gone into peripical tissues, palpation and percussion tests will be conducted.

Hence we can conclude that The two types of tests used by the denstist to determine whether the inflamatory process has gone into the peripical tissues are : Palpation and Percussion .

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Answer:

Contractile vacuole

Explanation:

Contractile vacuole pumps out excess water and wastes in a paramecium.

The structure that pumps out excess water and waste in a paramecium is called the contractile vacuole. The contractile vacuole is a specialized organelle that collects excess water and waste materials from the cell and then contracts and pumps them out of the cell through a pore in the cell membrane.

Paramecium is a single-celled organism that belongs to a group of organisms called protists. Like other cells, a paramecium must maintain a proper balance of water and solutes inside its cell to function properly. However, because paramecia live in freshwater environments that have a lower solute concentration than the cell, water tends to move into the cell by osmosis. If too much water enters the cell, it can cause the cell to burst, so the paramecium has developed specialized structures to help regulate the movement of water.

Hence, the structure that pumps out excess water and waste in a paramecium is called the contractile vacuole. The contractile vacuole is a specialized organelle that collects excess water and waste materials from the cell and then contracts and pumps them out of the cell through a pore in the cell membrane.

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Answer:

Myosin, plus

Explanation:

The molecular motors of the myosin superfamily are the only ones known to operate in conjunction with actin filaments. With one exception, these molecular motors move toward the plus end of an actin filament.

-Biscuit08

Hey There! Hope you are having a GREAT day!

Your question was.... "What layer of the blood vessel wall is composed of areolar connective tissue containing elastic and collagen fibers"

Your answer is the Tunica intima, Because, The blood vessel's tough outer layer is made up of connective tissue, which permits it to withstand stresses occurring on the vessel wall. It also contains strong collagen fibers that help bind the blood vessel to surrounding tissues, providing stability to the vessel.

I really hope this helps! :)

Answer:

A bird :)

Explanation:

Birds are warm blooded, have feathers, and reproduce by laying eggs :)

Have an amazing day!!

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Clear demonstration of deforestation, the cutting down of trees in large quantities.

So, answer is:

Harming the environment by destroying habitats and reducing the amount of oxygen in the air.

Hope this helps!

Answer:

Viral diseases require a vector so that they can spread from one person to another whereas other diseases can spread due to seasonal changes and other effects

Explanation:

Answer:

C

Explanation:

During a process called denitrification, nitrogen in gas forms, like nitrous oxide, are being released. Denitrification occurs if the nitrate is used when bacteria in the soil performs respiration.

Answer: Meiosis is a process in which the number of chromosomes per cell is cut in half through the separation of homologous chromosomes in a diploid cell. Meiosis usually involves two distinct divisions, called meiosis I and meiosis II. By the end of meiosis II, the diploid cell becomes four haploid cells.

Explanation:

Matching the related items with their description

1.  Frontal lobe :     Voluntary muscles

2. Medulla :           Involuntary muscles

3. Thalamus :        Electrical relay

4. Cerebellum :     coordination

5. Cerebrum   :      emotions/ visual/ thought

6. Cerebral cortex :   Neurons

7. Left hemisphere : right body

The Medulla is a stemlike structure which makes up the lower part of the brain. It connects the spinal cord to the brain and it is cone-shaped neuronal mass, it controls autonomc functions in the human body. The cerbral cortex is the outermist of the brain which controls the mental capability of a human.

Hence we can conclude that matching each item to its decription is listed above

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The pituitary gland is the director gland of the endocrine system along with the hypothalamus its malfunction can affect thyroid gland, adrenal glands among others.

It is one of the areas through which the orders to produce certain hormones are quickly transmitted when certain stimuli are detected in the environment.

Its malfunction can create hormonal deficiencies of the thyroid gland, adrenal glands among others that can affect the various normal functions of the body, such as growth, blood pressure or reproduction.

Therefore, we can conclude that the pituitary gland is the director gland of the endocrine system along with the hypothalamus its malfunction can affect thyroid gland, adrenal glands among others.

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Answer: The answer is C: Plant more trees

Explanation: Trees absorb excess nutrients from the soil, preventing algae blooms in waterways. This simple act will reduce algae blooms and help the fish.