Characteristics of Listeria monocytogenes include

Answer: 3. Structure is a better indicator of a relationship between two organisms because function can be caused by environment, not common ancestry. Structure is better than function because the structure is based on genetics.  For example, the wings on a fly and the wings on a bird perform the same function, but their genetic bases are different.  However, the wings on a bird and the arms on a primate are coded by similar genes even though the functions are different.

The best measure of relatedness is the underlying genomic DNA.

Explanation:

Answer:

Women have wide hips or big hips in order to be prepared for the childbirth and permitting pregnancy. The size of the hips of the women starts to wide during puberty as hips bone widens due to the estrogen that leads to increase in size of pelvis.

Advantages of big hips in women:

Besides the sexual attraction widen or big hips are the essential for the physical support and helps in conceiving pregnancy and permitting childbirth. It is also helps in advantage of store fat.

There are not enough significant disadvantages of wide hips other than physical and sexual challenges.

The purpose of ethical guidelines for the handling of experimental subjects is to help scientists plan an experiment in which no animals or humans are harmed. The answer is a.

These guidelines aim to prevent any physical, psychological, or emotional harm to the subjects involved in the experiment. They also ensure that the experiment is designed to achieve its scientific objectives without compromising the dignity, welfare, and safety of the subjects.

The guidelines require that researchers obtain informed consent from the subjects, maintain confidentiality of their data, and minimize any risks or discomfort associated with the study.

Adhering to ethical guidelines promotes the integrity and credibility of research and helps to maintain public trust in scientific studies. Hence, a. is the right answer.

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Answer:

√7-2√10x/√6-√2/1-√3-5/√5

Answer: The first and the last are point source and the second and third are non-point source.

Explanation: I got these right on the quiz.

The first image and the last image are point source pollution while the second and third images represent non point source pollution.

A point source pollution refers to a pollution that is emerging from a particular point such as from a pipe. It is traceable to a given source. The non - point source pollution is not traceable to any particular source.

In the image as shown, the first image and the last image are point source pollution while the second and third images represent non point source pollution.

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Answer:

YES, a potato grows into a plant that will eventually produce another potato.

Explanation:

The potato is a special type of stalk that grows underground. On its surface are precious stones called "eyes". Any part of a potato with an eye or a bud can grow into a new plant.

The potato eyes will sprout and grow into a new plant. Potatoes germinate quickly (in 2 weeks) at room temperature (21 degrees Celsius). These shoots become longer and eventually grow into the stems of potato plants later in the growing season. The shoots (which grow from the tuber's eyes) eventually grow out of the ground and become the stem of the new potato plant.

Of course, some store-bought potatoes are treated with a sprouting agent called chloroproham. This chemical will slow or prevent bulb germination and the resulting plants may not grow as vigorously.

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Answer:

Bacteria (singular: bacterium) are classified as prokaryotes, which are single-celled organisms with a simple internal structure that lacks a nucleus, and contains DNA that either floats freely in a twisted, thread-like mass called the nucleoid, or in separate, circular pieces called plasmids. Hope this helps :))

Explanation:

Answer:

Bacteria are classified as prokaryotes, which are single-celled organisms with a simple internal structure that lacks a nucleus, and contains DNA that either floats freely in a twisted, thread-like mass called the nucleoid, or in separate, circular pieces called plasmids.

Explanation:

Answer:

Robert Hooke used a compound microscope to look at a piece of cork. He noticed the honeycomb like structure that consisted of compartments with empty spaces- He called them cells

Explanation:

Word for word of the study lesson

The correct answer is that Matthias Schleiden and Theodor Schwann are credited for the development of the cell theory.

The first to realise that all plants are made up of cells was Matthias Schleiden, and the first to realise that all animals are made up of cells was Theodor Schwann.

In addition, Antonie van Leeuwenhoek was the first to see a live cell in a drop of pond water, and Robert Hooke was the first to use the word "cell" to describe the structures he saw when he studied a piece of cork under a microscope.

The cell hypothesis, which holds that cells are the fundamental unit of structure and function in all living creatures, was developed in large part as a result of the findings made by these experts.

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Answer:

D

Explanation:

Answer:

D) Under-coverage

Answer:

D

Explanation:

The most likely outcome of dividing a single large park or preserve into several smaller ones with human habitation in between is a decrease in the variety of species. Option an is the proper solution. species diversity decline. Option C is Correct.

When a forest is fragmented into numerous smaller pieces, it reduces the amount of habitat available to the species that dwell there. The major cause of this habitat fragmentation is human activity, such as the construction of nearby roads and highways.

This keeps species members apart from one another, which lowers the amount of gene flow between them and increases the risk of inbreeding depression in a species and species extinction. Cutting down trees and other human activities can significantly affect the ecosystem, which may lead to the extinction of some species. Option C is Correct.

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Correct Question:

Fragmenting one large park or preserve into many small parks with human habitation in between them is most likely to lead to which of the following?

a. Reduction in species diversity

b. Stabilization of microclimates

c. Decrease in the proportion of edge habitat

d. Increase in population size of carnivores

Answer: and also c

use of biological control, crop rotations and other techniques to manage weeds, insects and diseases

D) elimination of synthetic pesticides and fertilizers and other materials, such as hormones and antibiotics

E) yield is typically lower in an organic field than for a similar crop grown in a conventional or GM cropping system

the answer is actually c d and e not b

Explanation:

Based on information in the Bible, the correct descriptions are as follows;

The Bible is the Holy Book which Christians view as containing the sayings of God.
In addition to containing the sayings of God, the Bible contains a record of God's dealings with man, as well as the records of the ancient Israelites, the history of the life and times of Jesus Christ, as well as how the Christian church began. There are also records of prophecies found in the Bible.

The Bible also is a guide book of how God would want humans to live in order to live a happy life, and most importantly, how man can regain everlasting life which God intended for man when he created him.

The Bible also contain a record of how life began on earth with the creation of the Universe by God in the beginning.

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The spreading out of molecules in the air from a center of concentration is caused by diffusion. Diffusion is the movement of molecules from a region of high concentration to a region of low concentration.

This process occurs due to the random motion of particles, and it is driven by the natural tendency of particles to move from an area of high concentration to an area of low concentration.

Diffusion plays a vital role in many natural processes, including gas exchange in the lungs, transport of nutrients and waste products across cell membranes, and the release of odor molecules into the air.

In each of these processes, the molecules move from a region of high concentration to a region of low concentration due to the natural tendency of particles to spread out and become evenly distributed over time.

The rate of diffusion is influenced by several factors, including the concentration gradient, the temperature of the environment, and the size and shape of the molecules involved.

Diffusion can be a slow process, particularly over long distances or in areas where the concentration gradient is small, but it is a fundamental mechanism that underlies many of the processes that allow living organisms to function and survive.

Overall, the spreading out of molecules in the air from a center of concentration is an essential process that is driven by the natural tendency of particles to diffuse and become evenly distributed over time.

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Answer:

Microevolution

Explanation:

Micro means small so the word microevolution means small evolution

Answer:

pea plants because they were easy to grow, could be bred rapidly, and  several observable characteristics, like petal color and pea color.

Explanation:

Answer:

option b the extension of a neuron that carries messages away from the cell body

Answer:

Robert Whittaker

Explanation:

Robert Whittaker's five-kingdom system was a standard feature of biology textbooks during the last two decades of the twentieth century.

Answer:

Robert Whittaker's proposed five Kingdom of classification

If the hawks are increased in this model, the grass will increase in the food chain.

The model that we can see in the question  can eb seen to represent a food pyramid with some organisms at the apex and some underneath.

This is referred to as the series of exchanges of food-based substance and energy from one creature to another.

The main consumers, those that eat the grass, will decline as hawk populations rise. Therefore, there will be more grass because of this.

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The basic foundation of Earth's life is iron. The Earth's temperature is set by carbon molecules, which also mix the food we eat as well as the energy that drives our globalization.

Coke created of coal and ashes made from wood are products of the impure materials used in metal smelting. Particularly for said steel and iron industry sectors, it is essential. Electrical bristles, furnace linings, and pencils all make use of graphite. Devices for filtration and purification use activated charcoal.

An odorless gas called carbon monoxide kills thousands of people in North America every year. Inhaling carbon monoxide is extremely risky. In the US, it is the main cause of poisoning fatalities.

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part of the microscope is needed to be adjusted to have better contrast when viewing a specimen under the microscope is condenser.

A microscope is a lab tool used to study items that are too small to be seen with the human eye. The study of small structures and objects under a microscope is known as microscopy. Microscopic refers to something that, without the use of a microscope, is undetectable to the eye. There are many distinct kinds of microscopes, and they can be categorised in several ways. One option is to explain how an instrument interacts with a sample and generates images, for as by passing an electron or light beam past the sample in its optical path, measuring photon emissions from the sample, etc.

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Answer:

D —> pesticides used in agriculture

Explanation:

i believe this should be right as pesticides have no effect on water whilst the others do although im not too sure!

Answer:

I think it's cell wall and chloroplasts

Answer:

8. When cells are placed into a hypertonic solution, water will tend to move out of the cells and into the surrounding solution. This can cause the cells to shrink, a phenomenon known as crenation. In contrast, if cells are placed into a hypotonic solution, water will tend to move into the cells, causing them to swell and potentially burst.

9. Turgor pressure is the pressure exerted by the contents of a cell against the cell wall. In plant cells, turgor pressure is important for maintaining the shape and rigidity of the plant. When a plant is placed in a hypertonic environment, the loss of water from the cells can reduce turgor pressure and cause the plant to wilt or droop. This can make the plant less able to support itself and may affect its ability to grow and function properly.

Answer:

2.

Conduction

3.

Convection

4.

Convection

I'm pretty sure these are correct, let me know if you have any questions :D

Answer:

b. 2

Explanation:

Gene's come in different varieties called alleles