what are pros and cons of using averages in biology

Answer:

Mouth and stomach.

Explanation:

Answer:

Hormones are chemical molecules produced by glands is true

Answer:

Hormones are chemical molecules produced by glands.

Explanation:

TRUE

Answer:

Hope this helps.

Explanation:

Trees for example that are deciduous compared to trees that are not. Dicots and monocots. On and on.

Set the coarser focus knob to the low power objective setting.

A fast control that moves the optical system or stages up and down to provide speedy focusing. It serves as the first emphasis. FINE ADJUSTMENT KNOB. In order to find focus the vision when looking at higher magnifications, a slow but exact control is used.

Image focusing slider with a coarse setting for lower power consumption (usually the bigger knob) Sharpens the image with a fine adjustment knob under all conditions (usually the smaller knob) The arm—is used to hold the microscope and support the body tube.

Compound microscopes contain fine and coarse focal knobs that are obviously utilized to get the specimen in focus. Because they really move the stage up and down, these knobs are also referred to as "stage adjustment knobs."

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o Rotate the revolving nosepiece and click the 10x objective lens into place. Before placing the slide on the stage of a compound light microscope, which of the actions must be completed.

Make complete use of the coarse focus knob to lower the stage.The 4x  objective lens should be clicked into position after rotating the rotating nosepiece.Use the power switch to turn the microscope on. Using the coarse focus knob, raise the stage all the way.Image focusing slider with a coarse setting for lower power consumption (usually the bigger knob) Sharpens the image with a fine adjustment knob under all conditions (usually the smaller knob) The arm—is used to hold the microscope and support the body tube.Compound microscopes contain fine and coarse focal knobs that are obviously utilized to get the specimen in focus. Because they really move the stage up and down, these knobs are also referred to as "stage adjustment knobs."

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The plants living in water is also called as hydrophytes or macrophytes. The adaptations of aquatic plants are floating plants and dissected leaves. The adaptations of aquatic animals are respiration through gills, locomotion through fins and tail, and streamlined body for better swimming.

And as for aquatic animals, some of the adaptations of aquatic animals are: Their body is streamlined and hence, they can swim easily. They have gills as the respiratory organs. They have fins as the locomotory organs, Various types of fins are present in fishes such as dorsal fins, pectoral fins, caudal fins etc.

conjunction mechanism of gene transfer

the process of introducing new DNA into an organism's cells using modified viruses and plasmids as carriers. Cells can be transformed ex vivo for delivery to people or in vivo through gene therapy administered directly to the patient. The non-sexual transmission of genetic data between genomes is referred to as horizontal gene transfer (HGT; often referred to as lateral gene transfer). Genes can be replaced by incoming DNA or RNA, or new genes can be added to a genome. The exchange of genes across organisms is referred to as gene transfer. Both horizontal and vertical gene transfers are possible. When a DNA segment is copied and inserted from one place of the same molecule to another, the transfer of genes occurs horizontally.

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An adrenergic drug that worked in opposition to epinephrine would be a beta-blocker. The explanation is given below.

Epinephrine (adrenaline) is a hormone and neurotransmitter that stimulates the sympathetic nervous system. Epinephrine increases heart rate, dilates blood vessels, and opens up the lungs, amongst other things. On the other hand, beta-blockers are a kind of medication that works by blocking epinephrine and other stress hormones from binding to beta receptors in the body.

Beta-blockers are a kind of medicine that blocks the hormone epinephrine, also known as adrenaline, from binding to beta receptors in the body. Beta receptors are located in the heart and blood vessels, as well as other locations. When epinephrine binds to these receptors, it causes the heart to beat faster and the blood vessels to dilate, among other things. As a result, beta-blockers can be used to treat a variety of conditions that result from overstimulation of the sympathetic nervous system.

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Answer:

Frog skin is composed of an epidermal and dermal layer, containing resident immune cells throughout the layers. The epidermis is comprised of stratified squamous epithelial cells in three distinct layers: the stratum corneum (1), stratum spinosum (2), and stratum germinativum. Dec 18, 2018

Explanation:

Answer: B

Explanation:

Answer:

C exposure to radioactive elements

Explanation:

The main concern of using nuclear power is the radioactive elements it creates. An example would be uranium.

Sure natural gas is bad for the environment but its no where near as harmful as exposure to radioactive

Drilling for oil does not release radioactive elements therefore exposure to radioactive elements can only be caused by nuclear power.

The type of operon with the descriptions are given below:

An operon is a group of genes that are present in a given region of DNA and which are under the control of a single promoter.

Operons are commonly found in bacteria as they enable the bacteria to produce several gene products during a single transcription process.

Alternative splicing of the genes in an operon results in the formation of multiple mRNA transcripts used to synthesize proteins.

There are several forms of operons in living organisms, and they include:

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Answer:

reduced water loss

Explanation:

When the water enters the cells, they swell and become bowed. This causes the guard cells to bend away from each other, thereby opening the stomata. Conversely, when guard cells lose potassium ions, water diffuses out of the cells by osmosis.

The response helps the plant maintain homeostasis by regulating water levels that plants lose during transpiration.

The expression cellular homeostasis makes reference to the processes by which an organism maintains an internal state of equilibrium.

In conclusion, the response helps the plant maintain homeostasis by regulating water levels that plants lose during transpiration.

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Soluble food molecules are absorbed into the epithelial cells of the small intestine through the process of diffusion and active transport.

Answer:

prob b

Explanation:

Answer:

flagellum

Explanation:

Flagellum enable some protist to move

Answer:i think its b im not sure dont do b wait till someone else sees it

Explanation:

Answer:

B. "Scientist theories are based on large amounts of evidence."

I hope this helps you! :D

Explanation:

Theories are put into action once large amounts of research and evidence can be provided to prove a theory. Scientists especially need lots of evidence in order to prove a point and their theory.

True. The thoracic duct is the largest lymphatic vessel in the body and plays a crucial role in the lymphatic system. It begins in the abdomen, near the second lumbar vertebra, and ascends through the posterior mediastinum of the thoracic cavity.

It runs behind the esophagus and in front of the vertebral bodies, alongside the thoracic aorta on the left side. As it continues its ascent, it curves to the left and passes behind the aortic arch and left bronchus. Eventually, it reaches the base of the neck, where it drains into the left subclavian vein.

This anatomical pathway allows the thoracic duct to effectively collect lymphatic fluid from the lower extremities, abdomen, and left upper body, and return it to the bloodstream.

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b. A plane dividing the body into upper and lower sections is the best representation of a transverse plane in relation to the human body. It cuts across the body horizontally, perpendicular to the longitudinal axis, separating the upper portion (superior) from the lower portion (inferior). So, option B is the right choice.

Therefore, option b. (a plane dividing the body into upper and lower sections) is the best representation of a transverse plane in relation to the human body.

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The complete question may be like:

Which of the following best represents the orientation of a transverse plane in relation to the human body?

a. A plane dividing the body into front and back sections.

b. A plane dividing the body into upper and lower sections.

c. A plane dividing the body into left and right sections.

d. A plane dividing the body into diagonal sections.

Answer: A vas deferens

Explanation:

Answer:

they both help to protect the organism

Explanation:

Surface microvilli are tiny projections that resemble hair and cover the cell.

Microvilli are hair-like protrusions that cover an enterocyte's surface and add to the small intestine's larger surface area.

The proximal convoluted tubule of the kidney and the epithelial cells of the small intestine both have microvilli on their exposed surfaces. The intestinal villi, which are finger-like projections at the epithelial lining of the gut wall, should not be confused with microvilli.

The apical surfaces of polarised epithelial cells include microvilli, which increase the surface area of the cell exposed to the lumen to improve absorption and secretion. Microvilli are surface-extending cells that resemble fingers.

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The Ras-specific exchange factors Mouse Sos1 (Msos1) and Msos2 are regulated differently, with Msos2 containing ubiquitination signals that are absent in Msos1.

Mouse Sos1 (Msos1) and Msos2 are two different Ras-specific exchange factors involved in the regulation of Ras signaling pathways. These proteins play a crucial role in mediating the activation of Ras, a key protein involved in cell growth and differentiation.

One important difference between Msos1 and Msos2 lies in their regulation. It has been observed that Msos2 contains ubiquitination signals that are absent in Msos1. Ubiquitination is a post-translational modification process where ubiquitin molecules are attached to a protein, often marking it for degradation or regulating its activity.

The presence of ubiquitination signals in Msos2 suggests that it is subject to regulation through ubiquitin-mediated processes. This can include targeted degradation of the protein or modulation of its activity. On the other hand, since Msos1 lacks these ubiquitination signals, its regulation may involve different mechanisms or signaling pathways.

Understanding the differential regulation of Msos1 and Msos2 provides insights into the specific roles and functions of these exchange factors in Ras signaling. The presence of ubiquitination signals in Msos2 suggests an additional level of control over its activity, which may have implications for Ras-mediated cellular processes and signaling cascades.

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A cell that undergoes mitosis without cytokinesis would look like a multi-nucleated cell, with multiple nuclei within a single cell membrane.

Mitosis is a process of cell division in which a single cell divides into two identical daughter cells, each with the same number and type of chromosomes as the parent cell. Mitosis is a critical process for the growth, development, and maintenance of multicellular organisms.

During normal cell division, mitosis is followed by cytokinesis, which is the process of dividing the cytoplasm and cell membrane to create two daughter cells. However, if cytokinesis does not occur, the cell will not divide into two separate cells, and instead will remain as one cell with multiple nuclei.

This can be seen in certain types of cells, such as muscle cells and some fungi, which are naturally multi-nucleated. However, in other types of cells, the lack of cytokinesis can lead to problems and may be a sign of cancer or other diseases.

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Every enzyme has a different specific heat.

The amount of heat needed to raise a substance's temperature by one degree Celsius in one gramme is also known as specific heat. Typically, calories or joules per gramme per degree Celsius are used as the units of specific heat. For instance, water has a specific heat of 1 calorie (or 4.186 joules) per gramme per degree Celsius.

The notion of specific heat was developed by the Scottish scientist Joseph Black in the 18th century as a result of his discovery that equal masses of different substances required varying quantities of heat to raise them through the same temperature range. The French scientists Pierre-Louis Dulong and Alexis-Thérèse Petit showed in the early 19th century that measurements of a substance's specific heat allow one to calculate its atomic weights.

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Answer:

CAM plants temporally separate carbon fixation and the Calvin cycle. Carbon dioxide diffuses into leaves during the night (when stomata are open) and is fixed into oxaloacetate by PEP carboxylase, which attaches the carbon dioxide to the three-carbon molecule PEP.

Explanation:

Answer:

A. Codominance

Explanation:

Answer:

The correct order of protein production is:

c) 1,2,4,3

Ribosome: Protein synthesis begins in the ribosomes, which are located either in the cytoplasm or attached to the endoplasmic reticulum.

Endoplasmic Reticulum: After the initial stages of protein synthesis in the ribosomes, the newly synthesized protein is transported into the endoplasmic reticulum (ER) for further processing and modification.

Golgi Apparatus: The proteins synthesized in the ER undergo further processing and modifications in the Golgi apparatus. This includes sorting, packaging, and modifying the proteins to their final functional forms.

Secretory Vesicles: Once the proteins are properly processed and modified in the Golgi apparatus, they are packaged into secretory vesicles. These vesicles transport the proteins to their destination, such as the plasma membrane for secretion outside the cell.

Therefore, the correct order is 1, 2, 4, 3.

Answer:

The correct order of protein production is ribosome, endoplasmic reticulum, Golgi apparatus, and secretory vesicles. So the correct answer would be c) 1,2,4,3.

Many proteins destined for the endoplasmic reticulum, the Golgi apparatus, lysosomes, the plasma membrane, and secretion from the cell are synthesized on ribosomes that are bound to the membrane of the endoplasmic reticulum. The Golgi apparatus then distributes these proteins and lipids that it receives from the ER.

Eva investigates the number of daisy plants growing on the school playing field and uses a quadrat to count the number of daisy plants growing in different areas and the total number of plants in the field is 330,000.

The population density explains the total number of individuals present in a given area, as the density of the population of an area may increase or decrease based upon the availability of foods and the climatic conditions.

Hence, Eva investigates the number of daisy plants growing on the school playing field and uses a quadrat to count the number of daisy plants growing in different areas and the total number of plants in the field is 330,000.

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The question is incomplete, the complete question is the below

Eva investigates the number of daisy plants growing on the school playing field.

She uses a quadrat to count the number of daisy plants growing in different areas of the

field.

The table shows her results.

quadrat

1

2

3

4

number of daisy

plants

8

2

7

5

Each quadrat has an area of 0.25 m².

The school playing field has an area of 15000 m².

Estimate the population of daisy plants growing on the school field.

a)682

b)82500

c)330000

d)1320000

In organisms all cells are formed from pre- basic unit of life of the existing cells.

Cell theory tells about all living organisms originated from of basic units called cells. The unified cell theory states that all living things are composed of one or more cells the cell is the basic unit of life and new cells arise from existing cells.

The process by which information passes is as follows firstly, DNA is passed between cells during cell division. secondly, cells of all organisms between the similar species are same, both structurally and chemically; and finally, energy flow takes place within Cells that provide the basic units of functionality .

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