Can someone please explain this to me too? A and B below represent two different slide preparations of elodea leaves. Elodea is a plant found in streams and ponds in New York State. The water used on slide A contained 1% salt and 99% water.


The salt solution used on slide B contained 6% salt and 94% water.


Elodea cells normally contain 1% salt.

Five minutes after the slides were prepared, a student using a compound light microscope to observe the

cells in leaves A and B would most likely see that


(1) water had moved out of the cells of the leaf on slide A

(2) salt had moved into the cells of the leaf on slide A

(3) water had moved out of the cells of the leaf on slide B

(4) salt had moved out of the cells of the leaf on slide B

Mammals' skulls, as well as their dentition, may provide us with information about their diet. The skull of a mammal that lacks sharp canine teeth and has broad, flat molars, is likely to be herbivorous.

Furthermore, the molars' flat shape indicates that the mammal is probably a grazer that consumes grass or tough vegetation. In contrast to carnivorous mammals that use their sharp, pointed canine teeth to tear flesh and their molars to shear meat into smaller pieces, herbivorous mammals use their flat, wide molars to grind and crush tough vegetation.

The molars are often covered in ridges and crests, which increase the surface area of the teeth, allowing them to break down the fibrous plant material into smaller pieces that can be more easily digested. The molars are frequently continually expanding throughout the animal's life, allowing the animal to continue to grind up vegetation even as its teeth become worn down due to constant use.

The skull and teeth of a mammal provide important clues about its lifestyle, feeding habits, and ecology, and scientists can learn a lot about past animals by studying their bones.

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Answer:

Duodenum.

Explantion:

The duodenum is part of the intestine, not an accessory gland.

Answer:I’m sure the answer is D

Explanation:

All eukaryotes evolved from prokaryotes and eventually developed into mitochondrial organelles.

The endosymbiotic theory represents that some of the organelles in eukaryotic cells were prokaryotic microbes at some time. As per the endosymbiosis theory the eukaryotic cells were at first large prokaryotic cells that absorbed smaller prokaryotic cells.

Endosymbiosis is the engulfing of the cell by another one to produce, over time, a coevolved relationship in which none of the cell could survive alone.

It is an evolutionary theory that guides the origin of eukaryotic cells by prokaryotes.

Eukaryotic cells were previously large prokaryotic cells that actually absorbed smaller prokaryotic cells

Thus, the correct option is D.

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1. The exocrine function is stimulated by this hormone produced in the anterior pituitary: follicle-stimulating hormone (FSH), and produces ova (eggs) in the female.

2. The endocrine function is stimulated by this hormone in the anterior pituitary: luteinizing hormone (LH), and produces estrogen and progesterone in the female.

3. The exocrine function is stimulated by this hormone produced in the anterior pituitary: luteinizing hormone (LH), and produces sperm in the male.

4. The endocrine function is stimulated by this hormone in the anterior pituitary: follicle-stimulating hormone (FSH), and produces testosterone in the male.

1. The exocrine function of the reproductive system in females is stimulated by the hormone produced in the anterior pituitary called follicle-stimulating hormone (FSH), which promotes the production of ovarian follicles. The exocrine product in females refers to the release of eggs or oocytes from the ovaries during ovulation.

2. The endocrine function of the reproductive system in females is stimulated by the hormone luteinizing hormone (LH) produced in the anterior pituitary. LH triggers the release of estrogen and progesterone from the ovaries, which regulate the menstrual cycle, promote the development of the uterine lining, and prepare the body for pregnancy.

3. The exocrine function of the reproductive system in males is stimulated by the hormone produced in the anterior pituitary called luteinizing hormone (LH), which stimulates the production of testosterone in the testes. Testosterone is the primary male sex hormone and is responsible for the development of male reproductive organs and secondary sexual characteristics.

4. The endocrine function of the reproductive system in males is stimulated by the hormone follicle-stimulating hormone (FSH) produced in the anterior pituitary. FSH promotes the production of sperm cells (spermatogenesis) in the testes.

Overall, the reproductive system has both endocrine and exocrine functions, with the anterior pituitary gland playing a crucial role in regulating these functions through the production of specific hormones.

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i do not know at all

Answer:

a complex reaction

Explanation:

light sun and carbon dioxide are created

Answer:

Anabolic or endothermic

Explanation:

Photosynthesis is an example of anabolic reaction because we build complex carbs from relative simple building material and it is also an endothermic reaction because we need the energy from sun to start the reactions in photosynthesis.

Both are correct, depends on what you options you are given or what you've been taught.

Answer: the best answer that I could give you is that without those things the plant would die.

Explanation: the soil is important because it helps the plant with growing and it hold the roots and the water and other things like that, also without nutrients the plant couldn't survive the nutrients is basically food for the plants

Answer:

Now I answered so you can give that guy brainless

Explanation:

Answer:

The living things in an ecosystem are interdependent. This means that living things depend on their interactions with each other and also nonliving things for survival. For example, a tree depends on sunlight for energy and food. A snail depends on plants for food.

Explanation:

this might help you

Answer:

located in the lower abdomen

Explanation:

the triangle shaped hollow organ that is held in place by ligaments that are attached to other organs and the pelvic bone.

Answer:

A or D- most likely D

Explanation:

I don't know if the question is in relation to any specific research, so take it with a grain of salt. A or D make the most sense since B and C are negative impacts to the environment. I hope this helps!

Different links show relationships between two species. In the scientific world, there are three types of links, including mutualism, parasitism, and commensalism.

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Answer:

The correct answer is - increase, increase.

Explanation:

In some neurodegenerative diseases, some lower motor neuron cells die and the remaining lower motor neurons continuing the process of the vacated dead motor neuron cells to innervate the neuron and muscle synapses.

The size of the motor unit increases and due to the innervations of the new axon

increases the strength of the muscle contraction occurred by individually activating each surviving motor neuron. Here multiple motor units will be controlled by a single neuron.

From the analysis of the 2 equations: X = 3/4 and Y = 5/4

The equations can be solved using subtracting one of the two equations from the other.

Let's label the two equations:

Y=3x-1 .................... equation 1

Y=2-X..................... equation 2

Equation 2 can be rearranged such that:

Y = -X+2

Subtracting equation 2 from 1:

Y=3x-1

Y = -X+2

0 = 4X -3

4X = 3

  X = 3/4

Substitute X = 3/4 into any of equations 1 or 2 to determine Y.

Y = 3(3/4) - 1

   = 9/4 - 1

    = 5/4

Hence X = 3/4 and Y = 5/4

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A:  Dump trucks are so big or fat because they are used to haul large loads of loose materials, such as dirt, rocks, sand, and coal, to construction sites, factories, or power plants. The open bed features a hinge at the rear of the truck so that hydraulic pistons located at the front of the bed can lift the front to dump the contents of the bed at the delivery site.   The title of the world's largest dump truck went to the BelAZ 75710 which began moving rocks and coal in a mine in Siberia in 2014. The BelAZ 75710 is as long as two buses parked end to end, six times more powerful than modern Formula 1 racing cars, and heavier than a loaded Airbus A380 airplane. The entire vehicle costs over $6 million with each tire costing $42,000.

In short, they are big fat chonkers to carry big chonky stuff.

Answer:

Explanation:

A kidney machine, also known as a hemodialysis machine, filters your blood through a dialyzer, which works like a kidney and filters out extra salt, waste, and fluid. The machine has built-in safety checks to ensure the process is safe and effective. A pump in the machine slowly draws out your blood, then sends it through the dialyzer. Your cleaned blood is sent back into your body through the second needle in your arm.

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Cells in a developing embryo make and break gap-junction connections in specific and interesting patterns, suggesting that gap junctions play an important role in the signaling processes that occur between these cells. At the eight-cell stage, mouse embryos undergo compaction, changing from a clump of loosely associated cells to a tightly sealed ball (see the figure Part A). You wish to know whether gap junctions are present before or after this change in adhesion.

Using very fine glass micropipettes, you can measure electrical events and at the same time microinject the enzyme horseradish peroxidase (HRP), 40,000 daltons, or the fluorescent dye fluorescein, 330 daltons. Fluorescein glows bright green under ultraviolet illumination, and HRP can be detected by fixing the cells and incubating them with appropriate substrates. You obtain different results at both the two-cell and eight-cell stages, depending on whether the injections are made immediately after cell division or later (Part B). Immediately after cell division, cytoplasmic bridges linger for a while before cytokinesis is completed.

The substrate of an enzyme is what the enzyme acts on. Therefore, option E is correct.

Proteins called enzymes serve as biological catalysts by quickening chemical reactions. Substrates are the molecules that enzymes can interact with, and the enzyme changes the substrates into other molecules known as products.

Some examples of enzymes are zymase, ligase, pepsin, DNAase, sucrase, maltase, amylase, proteases, oxidoreductases, and lactase.

Thus, the substrate of an enzyme is what the enzyme acts on. Therefore, option E is correct.

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Answer:

A, A

Explanation:

Rivers pick up and move sediment downstream creating landforms.

I believe it is A, not 100% sure. However. heavy rain creates runoff that would push pollution into the rivers and ponds.

Answer:

Question 1.  (a)

Question 2. (a) (But I'm not sure about it, I think it can also be D)

Explanation:

Answer:

20 ( B )

Explanation:

Given data:

a and b are 10 map units apart

b and c are 20 map units apart

a and c = 30 map units apart

condition ; Triple heterozygote testcrossed

number of progeny = 1000

Determine the number of double crossover result

P( crossover between a and b ) = 10/100 = 0.1

P( crossover between b and c ) = 20/100 = 0.2

p( double crossover ) = 0.1 * 0.2 = 0.02

hence number of double crossovers = number of progeny * 0.02

                                                              = 1000 * 0.02 = 20

Answer:

The answer is B Ribosomes.

Answer:its b

Explanation:

Refer to the image attached below.

                  6CO₂ + 6H₂O + Light energy → C₆H₁₂O₆ + 6O₂

                                                                      (Glucose)

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From an agronomical point of view, there is a lot that the grower can do to maximize sugarcane yield. Proper crop nutrition is an important factor to achieve this.

In a large number of cases, nutrients that drive sugarcane yield forward, will also improve the sugar content and quality of the harvested sugarcane crop.

Most required nutrients have specific roles to play in improving yield:

The resulting RNA from the sense strand shown in the illustration will be 5’-CGAGUAAGCUAC

Once a pre-mRNA is made from transcription, the molecule undergoes some processes involving the splicing out of non-coding sequences, otherwise known as the introns.

After splicing, the coding sequences are then joined together.

Thus, by removing the introns in the sense strand and substituting the final sequence with RNA base (U in the place of T), what we will have would be 5’-CGAGUAAGCUAC

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Answer:

D.  The predator population will decrease.

Explanation:

If there is less prey, the food source for predators decreases therefore shortening the lifespan of some predators.

An ecosystem greatly differs from a community. An ecosystem may consist of all biotic and abiotic factors of a specific environment that interacts with one another directly or indirectly. While the community may be defined as a group of organisms that are living in a particular environment with numerous common characteristics.

An ecosystem may be defined as a place or an area where individuals of several species live and interact with one another in the presence of abiotic factors for the purpose of food, shelter, and space. For example, Forests, estuaries, grasslands, etc.

Community includes only living entities that are living in the same area at a given time. It is narrower than the ecosystem. For example, plants, animals other life forms, etc.

Therefore, it is well described above.

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Answer:

d d d d ................... blood

Answer:

B

Explanation:

Because the ice evaporated it's weight has Evaporated also.