Calculate the lethal dose (LD50) and lethal concentration (LC50) for
ethanol where:
• 30% (6/20) of the seeds germinated at a concentration of 0.6M
• 5% (1/20) of the seeds germinated at a concentration of 1.5M
• 0% (0/20) of the seeds germinated at a concentrations of 2.5M, 5M and
10M
*the total of seeds for each concentracion were 20 seeds*
When the concentration of ethanol in the petri dish was 0.6M, 6 seeds germinated and 14 seeds did not germinate.
When the concentration of ethanol in the petri dish was 1.5M, 1 seed germinated and 19 seeds did not germinate.
When the concentration of ethanol in the petri dish was 2.5M, no seed germinated.
When the concentration of ethanol in the petri dish was 5M, no seed germinated.
When the concentration of ethanol in the petri dish was 10M, no seed germinated.

By increasing the sustainability, FSC certified owner can make more profit

A property owner who cuts fewer trees may make more profit than a non-FSC certified owner in several ways:

Increased sustainability: By cutting fewer trees, the property owner is preserving forest resources and biodiversity, which can attract environmentally conscious consumers and increase the demand for their products.

Better reputation: FSC certification is an internationally recognized symbol of responsible forest management. By obtaining this certification, the property owner can improve their public image, increase their brand recognition, and increase consumer trust in their products.

Access to new markets: Many companies and governments now require their suppliers to source products from FSC certified forests. By becoming FSC certified, the property owner may gain access to new markets and customers, increasing their sales and profitability.

Reduced costs: By reducing the number of trees cut, the property owner may reduce the costs associated with logging and timber harvesting, such as transportation and processing expenses.

In summary, by cutting fewer trees and becoming FSC certified, a property owner can improve their sustainability, reputation, market access, and reduce costs, leading to increased profits.

Learn more about non-FSC certified owner:https://brainly.com/question/22266475

#SPJ1

Answer:

beryllium element

Explanation:

I hope it will help you

The order of DNA fragments in the process of sequencing a genome is determined by a technique called "shotgun sequencing". In this technique, the DNA of an organism is first broken into small fragments. These fragments are then cloned and sequenced separately. Once all of the fragments have been sequenced, they are assembled by overlapping the sequences that match.

To obtain the sequence of the entire genome, the process of assembling the fragments involves using specialized software that takes into account the overlapping regions between fragments. The software uses algorithms to piece together the overlapping regions, ultimately reconstructing the entire genome sequence.

Overall, the process of determining the order of DNA fragments in sequencing a genome involves the use of cutting-edge technology and advanced computational methods to assemble the fragments into a complete sequence.
Hi! In the process of sequence assembly, the order of DNA fragments is determined to obtain the entire genome sequence using two main approaches: the Overlap-Layout-Consensus (OLC) method and the De Bruijn Graph method.

In the OLC method, overlaps between DNA fragments (also called reads) are identified. These overlaps help to construct a layout that represents the relative positions of the fragments in the genome. Finally, a consensus sequence is derived, representing the most likely genome sequence based on the assembled fragments.

The De Bruijn Graph method, on the other hand, involves breaking the DNA fragments into smaller subsequences called k-mers. These k-mers are then represented as nodes in a graph, with directed edges connecting overlapping k-mers. The final genome sequence is obtained by finding an Eulerian path through the graph, which represents the most probable order of the DNA fragments in the genome.

To know more about genome visit:-

https://brainly.com/question/14353558

#SPJ11

The following are the differences of human and frog digestive systems:

1. Humans possess stable teeth which they use for chewing while frogs do not possess stable teeth to grip their prey.

2. Chewing for humans is an automatic digestion while frogs do not chew their prey but swallow it instead.

3. Humans possess only a set of teeth while frogs possess two sets of teeth.

4. Human's tongue is inclined behind the mouth while the frog's tongue is inclined to the opening of the mouth.

5. Humans possess a lengthy small intestine while the frog possess a more concise small intestine.

6. The expulsion of undigested food in human is through the rectum while in frog, it is through the cloaca.

The sympathetic and parasympathetic divisions of the autonomic nervous system regulate smooth muscle, cardiac muscle, and glands in the body, while the enteric division of the autonomic nervous system regulates the gastrointestinal system.

The sympathetic division, often referred to as the "fight or flight" response, prepares the body for intense physical activity and stress. It increases heart rate, dilates airways, constricts blood vessels, and inhibits digestion.

On the other hand, the parasympathetic division, known as the "rest and digest" response, promotes relaxation and maintenance of normal bodily functions. It decreases heart rate, constricts airways, increases blood flow to the digestive system, and stimulates digestion and nutrient absorption.

The enteric division, sometimes considered a separate division but still under the influence of the autonomic nervous system, controls the gastrointestinal system. It regulates various processes involved in digestion, such as peristalsis (muscle contractions for food movement), secretion of digestive enzymes, and absorption of nutrients.

Together, these divisions of the autonomic nervous system coordinate the activity of smooth muscle, cardiac muscle, and glands to maintain homeostasis and ensure proper functioning of vital bodily functions.

Know more about Cardiac Muscles here:

https://brainly.com/question/14855534

#SPJ11

Answer:

C, I had a test on this.

Explanation:

According to the question, when several well-tested findings go against the accepted idea .

Psychology, in a sense, is dealing with the highest complexity of all: brains studying brains. For this reason, psychology is the most difficult science."

Thus, option "C" is correct.

To learn more about scientific idea click here:

https://brainly.com/question/4701439

Answer:

Within the Body's reticulum?

Explanation:

In the process of DNA replication, both the strands act as template. The orientation of both of the strands is opposite, where one is 5'→3' and one is 3'→5' direction.

DNA replication is semiconservative in nature. This means that each of the strands in the DNA double helix structure acts as a template for the synthesis of a new, complementary strand of DNA molecule. This process gives rise to two daughter molecules from one single starting DNA molecule, with each newly synthesized double helix containing one new strand and one old strand.

The DNA replication occurs in both the directions. And, both the strands act as template strand where, one is called as leading strand and one is lagging strand. Both these strands replicate in opposite directions: one in the 5'→3' direction and the other one in the 3'→5' direction.

Learn more about DNA replication here:

https://brainly.com/question/16464230

#SPJ1

The information provided does not support any of the given statements directly. The information only mentions that smaller populations of treefrogs are supported in habitat A, without providing any specific reasons or comparisons related to the quality of resources, space availability, or food abundance between habitat A and habitat B.

A population refers to a group of individuals of the same species that live in the same geographical area and have the potential to interbreed. It is a fundamental concept in biology and ecology and plays a crucial role in understanding and studying the dynamics of species in their natural environments.

Therefore, none of the statements A, B, C, or D can be conclusively supported based on the information provided.

For more information regarding populations, visit:

https://brainly.com/question/15889243

#SPJ1

The structure of DNA is a double helix, which is made up of two connected strands that loop around one another to resemble a tangled ladder. Each strand's backbone is made up of phosphate and deoxyribose groups in alternating fashion.

The double helix, which resembles a twisted ladder, is the shape of DNA. Phosphate and sugar molecules alternately make up the edges of the ladder.

Its backbone, which forms the ladder's "sides," is made up of an alternation of the chemicals phosphate and sugar. (The sugar that makes up DNA's backbone is known by the name deoxyribose.) Adenine (A), thymine (T), cytosine (C), and guanine (G) are the four nitrogenous bases sandwiched between both the two sides of this sugar-phosphate backbone (G).

To know more about DNA visit:

https://brainly.com/question/264225

#SPJ9

The map shows the Mediterranean Sea and the countries that border it. The country that is labeled with the letter A is Egypt. This is the country that Saad Zaghlul fought for.

Saad Zaghlul was an Egyptian nationalist who fought against the British for three years to establish Egypt's independence. He was born in Egypt in 1859 and died in 1927.

The country that Saad Zaghlul fought for is Egypt. Egypt is a country located in North Africa. It is bordered by Libya to the west, Sudan to the south, the Red Sea to the east, and the Mediterranean Sea to the north. Egypt has a population of over 100 million people. The capital of Egypt is Cairo.

Find out more on Saad Zaghlul here: https://brainly.com/question/1114643

#SPJ1

The cell's series of tunnel-like membranes functioning in transport and storage are called the endoplasmic reticulum (ER).

The rough endoplasmic reticulum (RER) is studded with ribosomes and is involved in protein synthesis, folding, and modification. The smooth endoplasmic reticulum (SER) lacks ribosomes and is responsible for lipid metabolism, detoxification of drugs and toxins, and calcium storage.

The ER serves as a transportation system for molecules within the cell, allowing for the efficient movement of proteins, lipids, and other substances. It also plays a crucial role in the synthesis and storage of cellular components.

Learn more about endoplasmic reticulum (ER).

https://brainly.com/question/27914252

#SPJ4

Answer:

transform boundary: when two plates slide past each other

divergent boundary: when two plates pull away from each other

convergent boundary: when two plates collide with each other

:)

The correct filling the blanks for the given statement are:

1. When two plates slide past each other, they form a transform boundary. Transform boundaries are also known as strike-slip boundaries, in which motion is predominantly horizontal. For example, San Andreas fault.

2. A divergent boundary occurs when two plates pull away from each other. The divergent boundary is formed when the plates are moving apart and a new crust is formed by pushing the mantle.

3. When two plates collide with each other, they form a convergent boundary. The colliding of two plates causes the edges to buckle up to form mountain ranges or deep-sea trench.

To know more about boundaries, refer to the following link:

https://brainly.com/question/16660809

Answer:

A differential ability to exploit habitats after global climate change

Explanation:

According to the evolutionary theory proposed by Darwin (1859), it is not the strongest nor the most intelligent who survive, but those that are most adaptable to change. The animals that disappeared during the Miocene, a geological epoch from around 23 million years ago to 5 million years ago, likely failed to adapt to changes in environmental (temperature and vegetation) conditions. During this epoch (Miocene), a more severe climate and coarser vegetation likely contributed to the extinction of several mammal species (e.g., species of apes) and diversification of others (e.g., the divergence between chimpanzee and hominid lineages).

Answer:

nuclear, cell membrane, DNA

Explanation:

If you're talking about Prokaryotic and Eukaryotic cells...

They both have a cell membrane, which is basically like the wall of the cell.

They both have ribosomes, which are basically protein things.

They both have nucleoids, basically DNA.

They both have cytoplasm, or the stuff that fills in the remaining space in the cell.

If you are talking about animal and plant cells...

Animal cells basically share everything they have with plant cells, apart from the fact that plant cells have cell walls instead of a cell membrane.  

However, plant cells don't have the flagella, centrioles, and a few more other things that animal cells do.

Plant cells also have a central vacuole and chloroplasts.

In A-B toxins, the B subunit is necessary for making the initial attachment to the host cell.

A-B toxins are a class of toxins produced by certain bacteria that consist of two subunits: the A subunit and the B subunit. The A subunit is responsible for the toxic activity of the toxin, while the B subunit plays a crucial role in the initial attachment of the toxin to the host cell.

The B subunit of A-B toxins typically contains specific binding domains or receptor-binding sites that recognize and attach to specific receptors on the surface of host cells. These receptors are typically found on the surface of target cells that the toxin aims to invade or disrupt. The binding of the B subunit to these receptors facilitates the subsequent internalization of the toxin into the host cell.

To know more about toxins here

https://brainly.com/question/29513150

#SPJ4

Answer:

Carbon dioxide because theres air water and sun and the air is oxygen

Answer:

Carbon dioxide

Explanation:

carbon dioxide + water+ light energy generate the outcome of both glucose and oxygen for land creatures and humans.

Answer:

The Cerebral Cortex.

Hello. You forgot to enter the necessary data for this question to be answered. The data are shown in the figure attached below:

Answer:

Red-capped Robin is the group of Robins that share a more recent common ancestor with the Norfolk Island robins.

Explanation:

Red-capped Robin is the group of Robins that share a more recent common ancestor with the Norfolk Island robins, this can be seen by the degree of genetic similarity between these two species, since the Red-capped Robin has 98.2% of genetic similarity .

When two species have the same common ancestor, these species have great genetic similarity and the more recent this ancestry is, the greater the genetic similarity between the species.

Since the given organisms prepare their own food, hence none of the organisms mentioned are heterotrophs. Thus, the correct answer is Option D.

Heterotrophs are organisms that depend on other species (plants and animals) for food since they are unable to prepare it for themselves. They are dependent on these producers for food, either directly or indirectly.  

The rose and the pine tree, two of the choices given, are both autotrophs since plants can make their own food through photosynthesis. On the other hand, the deep-sea tubeworm is a chemoautotroph, meaning it gets its energy from inorganic substances in its surroundings.

Therefore, the correct answer is Option D.

Learn more about Heterotrophs from the given link:

https://brainly.com/question/25846728

There is a chance of 50% curled leaves with dominant allele.

A dominant trait is an inherited trait that manifests in a child if it is passed down from one parent to another through a dominant allele. Traits, commonly referred to as phenotypes, can include characteristics like eye colour, hair colour, immunity or susceptibility to specific diseases, as well as physical characteristics like freckles and dimples on the face. Each of the sexually reproducing species contains two pairs of chromosomes; humans have 23 pairs, making up a total of 46 chromosomes. The genotype of an organism is made up of the hundreds of genes on its chromosomes that produce the proteins that express and regulate all of its biochemical and physical characteristics.

The complete question is:

Penetrance of the curled-leaf phenotype associated with the dominant l allele in a mustard weed is 40%. in a cross between an ll and an ll plant, what fraction of the offspring would you expect to have curled leaves?

a) 20%

b) 25%

c) 50%

d) 75%

e) 100%

To learn more about dominant allele click here: https://brainly.com/question/14132766

#SPJ4

An ecosystem that has experienced a disruptive event, such as a volcanic eruption, will take time to recover from the effects of the disruption. The recovery process of an ecosystem is a complex, interconnected process between the biotic and abiotic components of a system. The recovery process that follows a disturbance varies depending on the type of disruption and the environment in which it occurs.

When a volcanic eruption occurs, it can release a great deal of ash and debris into the environment, and the effects can be devastating. The ash and debris can severely damage the terrestrial and aquatic ecosystems in the surrounding area, resulting in a loss of habitat, food sources, and other important resources. Additionally, the ash and debris can block sunlight and reduce photosynthesis, which can lead to a decrease in plant growth and a disruption of the food web.

For more information on  ecosystem  , visit :

https://brainly.com/question/1263301

#SPJ4

Crossing over is the process occurring during meiosis help to produce and maintain genetic variation in natural populations. Thus the answer is B)crossing over.

When chromosomes of the same type are paired together during meiosis, a biological event called Crossing over takes place.

Parts of the chromosome can be exchanged when two chromosomes, one from the mother and one from the father, line up. The same genes may be present on the two chromosomes in different versions. A gene, for example, could be transferred from the mother to the father's chromosome and vice versa, this process is referred to as Crossing over. The possible transmission of many gene combinations and forms to progeny makes this a very fascinating and significant biological activity. This genetic variation contributes to a species' increased diversity.

Additionally, diversity makes it easier for a species to adapt through time to its changing environment and go through evolution. Therefore Crossing over causes variation in the natural population.

Learn more about Crossing over:

https://brainly.com/question/927405

Answer:

(B) the last pair

Explanation:

Chemoreceptors respond to particular chemical concentrations, Mechanoreceptors respond to stimuli such as pressure or stretch, Photoreceptors respond to particular wavelength ranges of light, and Nociceptors respond to painful stimuli such as heat or tissue damage.

Sensory receptors are specialized cells or structures that detect and respond to specific stimuli in the environment or within the body. Different types of sensory receptors are responsible for detecting different types of stimuli.

Chemoreceptors are sensory receptors that detect particular chemical concentrations.

They are found in various sensory systems, such as the taste buds in the tongue and olfactory receptors in the nose, allowing us to perceive and differentiate different tastes and smells.

Mechanoreceptors are sensory receptors that respond to mechanical stimuli, including pressure, stretch, vibration, and touch.

They are found in the skin, muscles, and other tissues, enabling us to sense physical contact and changes in pressure.

Photoreceptors are sensory receptors located in the eyes that respond to specific wavelength ranges of light.

They allow us to perceive and interpret visual information, converting light energy into electrical signals that are processed by the brain.

Nociceptors are sensory receptors that detect and respond to painful stimuli, such as heat, extreme cold, or tissue damage.

They are involved in the perception of pain and trigger protective reflexes and conscious pain sensations in response to potentially harmful stimuli.

Learn more about Chemoreceptors here:

https://brainly.com/question/13257699

#SPJ11

Answer:

Less humidity, No precipatation, and cooler temperatures

Explanation:

sorry for spelling

Answer:

less humidity

no precipitation

cooler temperatures

Explanation:

got it right on edge