A group of students investigated how the salt content of water affects a plant that
lives in an aquatic ecosystem. On one slide, the students placed a piece of a leaf of
an aquatic plant and then added a drop of tap water. On a second slide, they placed
a piece of the same leaf and then added a drop of 10% salt solution. The students
observed both leaf pieces with a microscope. They repeated the process three times.
The table below summarizes their findings.
Observations of Aquatic Plant Cells
Condition Cell Membrane Vacuole Chloroplasts
Slide 1: Leaf in tap
water
Just inside cell
wall
Large, fills most
of cell
Near edges of cell,
around vacuole
Slide 2: Leaf in
10% salt solution
Pulled away from
cell wall
Invisible
Clumped in center
of cell
Which statement is the BEST explanation for these findings?
a The 10% salt solution was hypertonic; the tap water was isotonic.
b The 10% salt solution was hypotonic; the tap water was hypertonic.
The 10% salt solution was isotonic; the tap water was hypertonic.
O The 10% salt solution was isotonic; the tap water was hypotonic.

Answer:

D

because trough is the lowest or the minimum point and here D represents it.

:))

The point (D) represents the trough of the wave.

In physics, mathematics, and related fields, a wave is a propagating dynamic disturbance of one or more quantities. Waves can be periodic, in which case those quantities oscillate repeatedly about an equilibrium value at some frequency.

Moreover, a wave is a disturbance that moves energy from one place to another. Only energy — not matter — is transferred as a wave moves. The substance that a wave moves through is called the medium.

Hence, the highest surface part of a wave is called the crest, and the lowest part is the trough. The vertical distance between the crest and the trough is the wave height. The horizontal distance between two adjacent crests or troughs is known as the wavelength.

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Answer:

Metabolism is the chemical reactions that take place inside a living organism. The reaction occurs in the cells.  Digestion can be the best association to metabolism. The metabolic system recognizes which substances can be nutritious or poisonous. In order to complete this process, water is needed.  The chemicals are dissolved in water and transported. Without water, no reaction can take place.

Metabolism is considered as the set of life-sustaining chemical reactions within the living organism’s body cells.

Answer:

Gametes from both dogs are needed to maintain the correct number of chromosome in the offspring

Explanation:

Reproduction in dogs is a sexual process. During the process, haploid gametes from both the male and the female (sperm from males and eggs from females) fuse together in a process known as fertilization in order to produce diploid offspring.

The haploid gametes ensure that the offspring produced during fertilization has the correct (diploid) number of offspring. Because the production of gametes involves meiosis and crossing over of genetic materials between chromosomes, offspring produced by sexual reproduction are usually genetically different from one another. The random fusion of gametes further ensures that offspring from the same parents are different from one another.

Explanation:

Conditions needed for germinations are water and oxygen.

Seeds B and C has no water whereas Seed D have no oxygen.

Only Seed A has water and oxygen.

Hence the answer is A.

Answer:

Its the flagem

Explanation:

Answer: 434 words total. Left two questions blank (they are underlined) so youll probs need to fill it in. I also suggest putting it into your own words so if they run it through a plagerism checker this doesnt pop up. I hope this helps tho.

Introduction:

Cells are the basic building blocks of all living things. The human body is composed of trillions of cells. They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions. Cells also contain the body’s hereditary material and can make copies of themselves. Cells have many parts, each with a different function. Some of these parts, called organelles, are specialized structures that perform certain tasks within the cell.  

Materials:

• Microscope  

• Prepared slide of muscle tissue  

• Prepared slide of some internal organ such as the kidney, liver, or heart

• Prepared slide of erythrocytes, or leukocytes (from blood)

Instructions:

1. Place one of the prepared slides of animal tissue on the stage of the microscope.

2. Focus the microscope on low power. Then change to the high-power objective. Focus on the tissue, and note the cells.

3. On a separate sheet of paper, draw an individual cell that you see in the tissue. Note the shape of the cell and its other distinctive characteristics.

-What do you think the function of this cell might be?

4. Repeat Steps 1 and 2 using the other prepared slides.

5. On a separate sheet of paper, draw individual cells from the other prepared slides examined.

Questions:  

What do you think the functions of the other cells drawn might be?

- (i think this differs on person to person so may need to do it yourself)

If all of the different kinds of cells which you observed had been taken from the same organism or individual, would they have all had the same genetic information?

- Yes, the cells will have the same genetic information. However, the particular combination of genes that are turned on (expressed) or turned off (repressed) dictates cellular morphology (shape) and function. Essentially meaning that though the cells share the same genetic information they do not necessarily share the same functions.  

Consider specialization:  What biological concept or occurrence is demonstrated by the different kinds of cells which were observed?

- Though these cells have the same DNA, they all have different phenotypes. The phenotypes are different because the cells appear different under the microscope. The cells do this by expressing different genes at different rates. For example, the blood cell is expressing the gene to make hemoglobulin while the other cells are probably expressing different genes that allow them to be specialized. Cells differentiate which means that they are becoming more specialized. Epigenetics focuses on how cells become more specialized.  

Why is it important?

- This is important because it allows different parts of the body to carry out their crucial functions necessary for the whole body to run properly.  

Answer:If it's important to display the exact values, then the straight lines do a much better job. But often you'll find that what matters is the trend and the precise measurements are secondary. ... A straight line suggests that the value between the two measurements increased linearly, while a curved line suggests otherwise.

Explanation- you better read all of that!

Answer:

a) smaller size and no temperature gradient

Explanation:

Answer:

The nucleus is an organelle found in most eukaryotic cells, the exception being red blood cells. ...

The primary functions of the nucleus are to store the cell's DNA, maintain its integrity, and facilitate its transcription and replication.

The correct answer is A.

Fats thermally insulate the body, while proteins like actin and myosin form myofibrils which are the anatomical support for contraction.

Lipids and proteins are the macromolecules present inside living cells. Lipids are made of fats that insulate and proteins are involved in contraction. Thus, option A is correct.

Lipids have been the polymers that make the larger molecules and have been constituted of glycerol and fatty acids (triglycerides). These are stored in the fatty tissues called adipose tissues and provide insulation to the body.

On the other hand, proteins are macromolecules constituted of amino acid sequences (polypeptide). These are involved in the muscle contraction that allows the movement and motion of the muscular and skeletal systems.

Therefore, option A. the fats and proteins are involved in insulation and contraction.

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Answer:

Vesicles

Explanation:

Answer: A couple of homologous chromosomes, or homologs, are a set of one maternal and one paternal chromosome that pair up with each other inside a cell during fertilization. Homologs have the same genes in the same loci ...

Explanation:

Answer:

There are many factors that go into the changes made to the Appalachian Mts.; you've got wind erosion, water erosion from rain/snow melting, and tectonic plate movements that can either cause the mountains to grow or to shrink.

Answer:

The expansion of excess water as it turns to ice inside the cells would break the cells apart

Explanation:

We know that water expands anomalously. It expands between 4- 0°C.

Hence water expands upon freezing. Ice has more volume than liquid water and takes up more space in plant cells.

The expansion of excess water as it turns to ice inside the cells would break the cells apart

Answer:

dna

Explanation:

I believe its ATP. Hope you do well on your test.

Answer:

phylum Porifera

Explanation:

Sponges constitute the phylum Porifera, and have been defined as sessile metazoans (multicelled immobile animals) that have water intake and outlet openings connected by chambers lined with choanocytes, cells with whip-like flagella.

Answer:

it becames turgid

Explanation:

Plant cells have plasma membrane and rigid cellulose cell wall. When the cell is placed or immersed in distilled water, the water is absorbed by osmosis. As the cell becomes turgid, the cell wall creates an inward force i.e wall pressure that prevents the cell from bursting.

                                                       Answer

According to EasyEliMu,

Plant cells have cells membrane and cell wall. When the cell is placed or immersed in distilled water, the water is absorbed by osmosis. ( This is the reason why plants do not burst!!! ) As cell becomes turgid, the cell created an inward force, wall pressure that prevents the cell from bursting. Isotonic solution- a solution which has the same concentration as the cell sap.

Hope this helps! <3

Answer:

c is the correct answer of these questions

Answer:

Oxygen and glucose are both reactants in the process of cellular respiration. The main product of cellular respiration is ATP; waste products include carbon dioxide and water.

Explanation:

Brainliest please? Would really help!

Answer:

food          minerals

The answer is A.

A GENE is being inserted into the tobacco plant, which permits it to glow.

The conclusion that should be best supported by this experiment is option A.

At the time when the bacteria should be placed into the tobacco plants so here tobacco should be without the bacteria and this can't be glow. Also, the gene should be added into the tobacco plant moreover, the firefly and bacteria shared the common genetic code

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Answer:

well i would help if i could see the question

Explanation:

Answer: there is no question to what your asking?

Explanation: there is nothing here that is being questioned

Answer:

the answer is A Calvin cycle stroma

Answer:

A. separate organisms

Explanation:

Sana makatulong

Answer:

Biotechnology is a broad area of biology, involving the use of living systems and organisms to develop or make products. Depending on the tools and applications, it often overlaps with related scientific fields

Explanation:

1.

genetically identical to each other and to the parent

2.

Sexual reproduction involves two parents and produces offspring that are genetically unique.

Answer:

Yes, this may be a little confusing when taking a first glance at the chemical equation.

Explanation:

You see, the whole process of balancing an equation is to make sure the reactants and products have the same amount of mass/atoms.

With that being said, the products to appear to be different after going through the chemical change. this is because of what was happening through that process. But, all of these atoms are still within the final product.

For example, if you take water in a container, one with a lid and one without a lid, then you heat up both containers of water, the container that has the lid open will seem like the water is gone, that the atoms are not the same. Actually, if we take a look at the closed container, all of that gas that was formed from the water still has the same amount of atoms contained in it. As for the open lid container, the atoms are all there, but some of them was just released into the air outside of the jar, making it seem like there is less.

#teamtrees #WAP (Water And Plant)

The study of chemicals is called chemistry.

It is possible to have different chemical properties but the same number of elements present in the reactant and the product.

According to the law of mass of conservation of the mass. it states that the number of elements present in the reactant and the product will always remain the same.

Hence, according to this law, the mass and the quantity of the element are the same but the bonds and the arrangement of the elements are different which causes different chemical behavior.

Hence, it is possible.

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