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Answer:

The larval period of fish development is certainly the most complex from the aspect of nutrition. During this period, the digestive tract is not fully phisiologicaly developed.

Explanation:

The nutrition of larvae is largely based on the consumption of zooplankton. Such food must be distributed to larvae 10-24 times a day.

Answer:

law of superposition

Explanation:

law of superposition a major Principle of strattigphy string that within a sequence of layer of sedimentary rockthe oldest layer is ar the base and the layer are younger with ascending order in sequence

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Answer:

10. D

Explanation:

As we age, the amount of fluid in our bodies begins to decrease. This means there are fewer water reserves available for your body to use as you get older. Lowered thirst response. Feeling thirsty is your body's way of letting you know you need water.

Hello there! Photosynthesis

Objectives:

(Adaptable to grade levels 6-9)

The student will:

1. Observe evidence of photosynthesis in a water plant.

2. Assemble the equipment needed to measure the rate of photosynthesis in

elodea (water plant).

3. Count bubbles of oxygen gas given off by elodea to determine the rate of

photosynthesis.

4. Change the conditions of photosynthesis by altering light intensity and

carbon dioxide amount, and determine the effects on the photosynthesis rate.

5. Prepare a graph of the collected data and analyze it.

Materials Needed:

(For each group of four students)

elodea (water plant) lamp (40 watt)

test tube razor blade (single-edge)

dechlorinated water (room temperature) tape

sodium bicarbonate powder (baking soda) clock or timer

metal stand with rod or test tube rack metric ruler

Strategy:

PART A. Setting Up the Experiment

1. Obtain a sprig of elodea. Remove several leaves from around the cut end of

the stem. Slice off a portion of the stem at an angle and lightly crush the

cut end of the stem.

2. Place the plant into the test tube, stem end up, filled with water.

3. Secure the test tube to a metal stand with tape or place the test tube in a

test tube rack.

PART B. Running the Experiment

1. Place a 40 watt lamp 5 cm from the plant. After one minute, count and

record the number of oxygen bubbles rising from the cut end of the stem.

Count bubbles for five minutes. If bubbles fail to appear, cut off more of

the stem and recrush.

2. Run a second five-minute trial. Record and average your results.

3. Move the lamp so it is 20 cm from the plant. After one minute count and

record bubbles for two five-minutes trials. Again, average and record your

results.

4. Add a pinch of sodium bicarbonate powder to the test tube. Place the lamp

5 cm from the test tube. After one minute, record bubbles for two five-

minute trials. Average and record your results.

5. Prepare a graph of your results. Use the average number of bubbles for the

vertical axis. Use the type of environmental condition for the horizontal

axis.

Performance Assessment:

The students will answer these questions using specific values from the

investigation. Diagrams may be included.

1. How does this investigation demonstrate that plants give off oxygen during

photosynthesis? Explain your answer based on your observations.

2. How does the rate of photosynthesis change when the light source is moved

from a distance of 5 cm to 20 cm?

3. How does the rate of photosynthesis change when sodium bicarbonate is added

to the water?

Conclusions:

Plants use green pigments called chlorophylls to trap light energy. The

chlorophylls give a plant its green color. Inside the cells that have

chloroplasts, the light energy is used to make a simple sugar called glucose.

The process by which plants use light energy to make glucose is called

photosynthesis.

During this process of sugar production, carbon dioxide combines with water to

form glucose and oxygen is released. Oxygen that is produced in photosynthesis

is given off as a gas. If a lot of oxygen is being given off, photosynthesis is

occurring rapidly. If little oxygen is being given off, photosynthesis is

occurring slowly. The amount of trapped light energy and the amount of carbon

dioxide available affects the rate of photosynthesis.

The purpose of adding sodium bicarbonate powder to the water increases the

amount of carbon dioxide in the water.

This investigation can be performed with water plants grown in many parts of

the world, except regions that have permanent ice.

Return to Biology Index

The bubbles released by the Elodea signify that the plant is cycling matter because:

Carbon in the form of carbon dioxide is being fixed in the Elodea through the process of photosynthesis according to the following equation:

                      [tex]6CO_2 + 6H_2O ---> C_6H_1_2O_6 + 6O_2[/tex]

During respiration by the same Elodea, the carbohydrate produced would be broken down in a reaction with oxygen to produce carbon dioxide and water:

                         [tex]C_6H_1_2O_6 + 6O_2 ---> 6CO_2 + 6H_2O[/tex]

Thus, important materials such as carbon and oxygen are being recycled in the photosynthetic process.

More on matter recycling can be found here: https://brainly.com/question/1192312

Answer:

In terms of inputs, outputs and energy transformations, photosynthesis can be summarized as follows. Inputs - Sunlight as energy source, carbon dioxide and water. Processes - Chlorophyll traps sunlight; the energy is used to split water molecules; hydrogen from water is combined with carbon dioxide to produce glucose.

Explanation:

Answer:

carbohydrates

Explanation:

Among the choices above, it is "carbohydrates" that provide the most energy per gram. Although both carbohydrates and proteins provide 4 calories per gram, carbohydrates contain the most number of glucose, which is being used in order for the body to have energy. So, if you want a quick way to become energetic, it is best to eat "healthy carbohydrates" than proteins.

Around 60% of proteins are converted into glucose while 100% of carbohydrates are converted into glucose. Therefore, carbohydrates provides more energy.

Answer: During the process of photosynthesis, six molecules of carbon dioxide and six molecules of water react in the presence of sunlight to form one glucose molecule and six molecules of oxygen. The role of water is to release oxygen (O) from the water molecule into the atmosphere in the form of oxygen gas (O2).

Explanation:

The question is incomplete, the options is gotten from another website.

Here are the options.

Water molecules combine wlth stored carbon molecules to produce glucose best describe the Role of water

Photosynthesis is the process where gree plants uses light energy from sun with carbon dioxide to produce glucose and water in the presence of chlorophyll.

Six molecules of water react with six molecules of carbon molecules to produce glucose.

It form chemical potential around membrane which help in the production of energy.

Therefore, Water molecules combine wlth stored carbon molecules to produce glucose best describe the Role of water.

Learn more on Photosynthesis from the link below.

https://brainly.com/question/3529377.

Answer:

adenosine triphosphate (ATP)

Answer:

Adenosine triphosphate (ATP)

Explanation:

ATP has 3 phosphates. Look at the model picture it has 3 P's in it representing 2 phosphates.

Answer: Aauaporin

Explanation:

Answer:

Exocytosis

Explanation:

I just did the and I got it right <3

1. New technology is developed that provides more information about the theory.

2. New experimental methods are designed to test a theory.

3. A single experiment produces results that differ from all previous experiments.

im not sure about #3 but it could be it

Answer:

A. New technology is developed that provides more information about the theory.

B. New experimental methods are designed to test a theory.

D. New information is discovered that does not support the theory.

Explanation:

just did it

Answer:

Red blood cells carry oxygen from our lungs to the rest of our bodies. Then they make the return trip, taking carbon dioxide back to our lungs to be exhaled.

Explanation:

They transport oxygen

Explanation:

1)It carry oxygen from our lungs to the rest of our bodies.

2)It attracts bacteria

Answer:

positive mutations means positive impacts of mutations i.e it leads to mutations. while negative effects leads to chromatic aberration that occurs during phenyl ketonuria!

If this helped you mark me brainliest (=^o^=)

Answer:

The tomato is the edible berry of the plant Solanum lycopersicum, commonly known as a tomato plant. The species originated in western South America and Central America. The Nahuatl (the language used by the Aztecs) word tomatl gave rise to the Spanish word tomate, from which the English word

Answer: obtained from pollen grains as they are haploid while leaves, root tip and buds are diploid.

Answer:

B) Both include recations that transform energy.

The statement that describes the similarity between photosynthesis and cellular respiration is that both include reactions that transform energy.

Photosynthesis is the process by which green plants obtain food using energy from sunlight.

Cellular respiration is the process by which living organisms obtain energy (ATP) by breaking down food molecules in their cells.

Cellular respiration and photosynthesis are both metabolic processes that transform energy.

Cellular respiration transforms energy in food molecules to usable energy by cells while photosynthesis transforms solar energy to chemical energy.

Learn more about photosynthesis and cellular respiration at: https://brainly.com/question/12671790?referrer=searchResults

Answer:

the dish the student did not add dog spit to

Explanation:

Answer:

cfffccecdwcfwd

Explanation:

Answer:

The sounds are shallow, relatively sheltered embayments that are fed by large volumes of fresh water from the rivers draining into them.

Answer:

A.

Explanation:

Gravitational energy draws things to it's surface

Answer:

its A

Explanation:

Answer:

A finite resource is something that can only be consumed once without possibility of being recycled for re-use. Because fossil fuels are burned, they cannot be reused and are therefore a finite resource.

Explanation:

Answer:

itrogen is one of the key nutrients that plants need to grow, and it is naturally available in limited quantities. Therefore, the addition of nitrogen fertilizer is an important component of achieving high agricultural yields.

Explanation:

Answer:

Even mostly or entirely plant-based diets can be high in protein. Protein is an essential part of a healthy diet. It helps to build and repair muscle, organs, and bones. High-protein diets have also been shown to be helpful with reducing fat, losing weight, increasing satiety, or a feeling of fullness, and retaining muscle.

Answer:

A decreasing line

Explanation:

The graph of carbon dioxide absorption look like a decreasing line for the forested area. Thus, the correct option will be C.

The absorption of carbon dioxide gas is an important process in many of the practical applications such as the reduction of greenhouse gases, separation as well as the purification processes in the chemical and the petroleum industries, and it also involve capturing of the radioactive isotopes in the nuclear fuel cycle and environment.

The carbon dioxide gas is captured and it can be put to the productive use in enhanced oil recovery as well as the manufacture of fossil fuels, building materials, and more, or it can be stored in the underground geologic formations in the environment.

Therefore, the correct option will be C.

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Answer: it’s is proteins that are conjugated with a small number of monosaccharides or short typically branched chains of carbohydrates ( oligosaccharides). And one use of glycoproteins is they have something to do with immune system examples the molecules of as such as antibodies ( immunoglobulins) which they just interact with antigens.

Explanation: hope this help I take biology it can be tough.

Answer:

The activity which causes the least amount of wetland and estuary degradation when it occurs near the coast is:

A. dune grass rehabilitation

Explanation:

This is actually a rehabilitation effort, unlike the other three options that cause land degradation.  A dune grass rehabilitation accretes sand and minimizes the rates of beach erosion. The program tries to protect coastal infrastructure and upland properties from storm damage by planting vegetation, fencing off sensitive areas, blocking storm surge, creating dune walkways, and absorbing wave energy.  During dune grass rehabilitation, activities that adversely affect the dunes are avoided.

Answer:

3. A solution where there are less solutes in the solution than in the cell.

Answer:

b

Explanation:

mRNA transcript

Answer:

The 4th option.

Explanation:

Erosion from glaciers takes a long time because glaciers move very slowly across the land. For example, The Appalachian Mountains in the U.S. used to be really tall but slowly overtime, glaciers rounded them off.

Answer: An increase in the algae in the neighborhood lake could be related to Sarah's farm as a result of the use of fertilizer.

dont forget to brainliest <3

Answer:

Which of the following statements about exponential growth curves is true?

- a. Exponential growth curves are common for R-selected species.

Explanation:

The statement that is true about exponential growth curves is as follows:

Thus, the correct option for this question is A.

An Exponential growth curve may be defined as a type of growth curve that significantly illustrates greater increases in the population of organisms with respect to time. It immediately represents the growth with extreme fast rates.

Exponential growth is followed by the continuous breeding population which contains more individuals than a similar population breeding annually. It includes examples like some insects, r-selected species, etc.

The shape of the exponential growth curve is J-shaped. It represents only fast growth rates. While the logistic growth curve shows fast growth rates followed by slow growth rates. It possesses a shape known as S-shape. It represents the growth rate of k-selected species.

Therefore, the correct option for this question is A.

To learn more about Exponential growth curves, refer to the link:

https://brainly.com/question/419566

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