During complementary base pairing, enzymes join the base's nucleotide to the preceding nucleotide by a(n) ________ bond.

The feature that feeding polyps would have that the reproductive polyps may lack is specialized structures for capturing and consuming food. Feeding polyps, also known as zooids, are responsible for obtaining nutrients for the entire colony of organisms.

These polyps typically have tentacles or other appendages that they use to capture and immobilize prey. They also have specialized cells, such as nematocysts, which are used to inject venom into their prey to immobilize or kill them. On the other hand, reproductive polyps, also known as gonozooids, are primarily involved in reproduction and may not possess these specialized feeding structures. Instead, they focus on producing and releasing reproductive cells or structures, such as eggs or sperm, to facilitate the colony's reproduction.

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Answer:

those connective tissues are called Tendons.

Explanation:

A tendon is a fibrous connective tissue that attaches muscle to bone. Tendons may also attach muscles to structures such as the eyeball. tendons are often confused with ligaments, ligaments are fibrous connective tissue that attaches bone to bone, and usually serves to hold structures together and keep them stable

Answer:1. do honeyguides in different areas of the world have a similar symbiosis with humans?

2. how old are the birds when they learn to respond to the humans' calls?

3. could other birds in the region form a similar symbiosis with humans?

Explanation:

Answer:

1. Would different honeyguides in different areas respond to these calls the humans make?

2. Would other birds nearby be able to share a similar symbiosis with humans?

3. Are there other sounds that honeyguides might respond to?

Explanation:

Pollination is the transfer of pollen grains from

an anther to a stigma . Pollen can be transferred

by an animal or by the wind. Fertilization takes

place inside the ovary when the nucleus

of pollen grains fuses with the nucleus of

an ovule to produce a zygote

Answer:

The major difference between pollination and fertilization is that pollinations pollens transfer from one flower to another. Whereas, in fertilization place after pollination is tranferred successfully

Answer:

option (C)

Explanation:

In both plants and animals, RNA contains:

Ribose sugar, phosphates, adenine, uracil, guanine, and cytosine.

The pressure exerted by the left ventricle must push blood to the body.

The left ventricle must similarly contract quickly and forcefully during the systolic phase to force this blood into the aorta and overcome the significantly higher aortic pressure. In order to accommodate the increase in blood volume, more pressure must be applied in order to expand the aorta and other arteries.

The ventricles contract during systole, pumping blood throughout the body. The ventricles relax and refill with blood during diastole. The left ventricle gets oxygenated blood from the left atrium via the mitral valve and pumps it into the systemic circulation via the aortic valve.

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The answer is B because the other answers are responsibilities for members of the community while B is when the community members had to participate in a local government process where they make decisions so that's why the answer is B. I hope this helps.

Answer:

Intrauterine insemination IU

Explanation:

In  this scenario the required numbers of sperm are not released in the semen of the Hans needed to fertilize Sharon ovum..Therefore,a technique is needed to directly inject  an healthy sperm, into her uterus to fertilised  her ovum directly,the technique is IU.

It is a process which involve the selection of healthy sperm.and injected this during ovulation in the female.With this procedure,the likelihood of fertilization  and pregnancy occurring is high,as the distance,time  and competition with other sperm cells is reduced.This makes the procedure reliable.

It is simple technique which involves the sperm washing to get the best concentration of sperm to use, monitoring of the ovulation and  optimal timing; which targets best time of ovulation,usually day 1 or day 2 after ovulation.

it is relatively less expensive.

Answer:

Yes this is correct.

Explanation:

Spindles are necessary to equally divide chromosomes during mitosis

The treatments for infections caused by Staphylococcus aureus had to change due to the development of antibiotic resistance within the bacteria population. Here's a breakdown of the reasons behind the treatment changes:

Penicillin: Initially, penicillin was an effective treatment for Staphylococcus aureus infections. However, over time, some strains of the bacteria acquired an enzyme called penicillinase or beta-lactamase, which can break down penicillin and render it ineffective. This led to the emergence of penicillin-resistant Staphylococcus aureus strains, commonly known as methicillin-resistant Staphylococcus aureus (MRSA). Methicillin: Methicillin was introduced as an alternative to penicillin to combat MRSA strains. Methicillin and other antibiotics in the same class, known as beta-lactamase-resistant penicillins or anti-staphylococcal penicillins, were designed to be effective against penicillinase-producing bacteria. However, some strains of Staphylococcus aureus developed a different mechanism of resistance called methicillin resistance. This was achieved through the production of an altered target protein called PBP2a, which methicillin and related antibiotics could not bind to effectively.

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Because it creates a concentration gradient of protons across the inner mitochondrial membrane, the proton gradient (H+) is a significant force in the electron transport chain process. The answer is true.

This slope fills in as a wellspring of potential energy that can be utilized by ATP synthase to create ATP from ADP and inorganic phosphate. Oxidative phosphorylation is the primary mechanism by which ATP is produced in eukaryotic cells.

ATP is made by synthesizing the proton gradient created by proton pumping during the electron transport chain. Through the membrane protein ATP synthase, protons flow down their concentration gradient into the matrix, causing it to spin like a water wheel and catalyze the conversion of ADP to ATP.

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Answer:

a

Explanation:

well of you use a cup to give a plant water you can measure how much it drinks

The measurable factors are A) How often a plant is watered, B) How much sunlight a plant receives, D) The actual number of new leaves on a plant.

Options (A) (B) & (D) are correct.

Measurable factors are those that can be quantified or expressed numerically. A) The frequency of watering can be counted and tracked over time. B) Sunlight can be measured in terms of intensity, duration, or light levels. C) "Seeing pretty leaves" is subjective and not quantifiable.

D) The actual number of new leaves is a concrete count, making it measurable. When studying or managing plants, it's essential to focus on quantifiable aspects, like watering frequency, sunlight exposure, and counts of observable changes, for accurate analysis and decision-making.

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The complete question is:

Which of the following are measurable? (Select all that apply)

A) How often a plant is watered

B) How much sunlight a plant receives

C) Seeing the pretty leaves on a plant

D) The actual number of new leaves on a plant

The endosymbiotic theory explains how organelles inside eukaryotic cells are descended from ancient unicellular prokaryotic organisms.

The endosymbiotic theory, often known as symbiogenesis, is the idea that the first eukaryotic cells evolved through a symbiotic relationship between two or more prokaryotic organisms. It states that organelles inside eukaryotic cells, such as mitochondria and chloroplasts, were once free-living unicellular prokaryotic organisms that were engulfed by a host cell and evolved into specialized cell components over time.

According to the endosymbiotic theory, eukaryotic cells arose from the interaction of several distinct types of prokaryotic organisms. The theory claims that a host cell first consumed an aerobic bacteria, allowing the development of mitochondria. Later, it took up a cyanobacteria, resulting in the development of chloroplasts in some eukaryotic organisms.

This theory explains how eukaryotic cells came to be and how their organelles evolved, allowing them to accomplish complex cellular functions. This has implications for the evolution of all life on earth, as it means that multicellular organisms emerged from simpler, single-celled organisms in a process of co-evolution that resulted in the development of complex, differentiated organisms.

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Answer:

enzymes help the body break down larger complex molecules into smaller molecules, such as glucose, so that the body can use them as fuel.

Explanation:

The term used for the removal of exons from RNA is called splicing. And the term used for the joining of DNA strands is ligation.

Splicing is the process in which the coding genes are joined together while removing the non-coding genes. The coding genes are called exons while the non-coding genes are called introns. Splicing is performed upon the m-RNA strand.

DNA stands for Deoxyribonucleic Acid. IDNA is a nucleic acid which acts as the genetic material in majority of the organisms. The DNA is a double helix structure which consists of sugar and phosphate backbone and the nucleotide bases emerging out of it perpendicularly.

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The name given to the cells produced at the end of meiosis 1 in females is secondary oocytes.

Secondary oocytes, also known as secondary follicles, are a stage of egg cell development that occurs during the menstrual cycle in women. These cells are formed after the primary oocyte undergoes meiosis I, which produces two cells: a secondary oocyte and a polar body.

The secondary oocyte is larger than the polar body and contains most of the cytoplasm and organelles of the original cell. It is surrounded by a layer of cells called the corona radiata and a protective coating called the zona pellucida.

If the secondary oocyte is fertilized by a sperm cell, it undergoes meiosis II and forms a mature ovum (or egg cell) and another polar body. The mature ovum is then capable of being fertilized by a sperm cell and developing into an embryo. If the secondary oocyte is not fertilized, it will degenerate and be expelled from the body during menstruation.

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Answer:

Explanation:

Answer:

Using a hot plate to heat an unknown liquid in a glass flask could be dangerous if protective/safety equipment aren’t worn. The unknown liquid may be a corrosive chemical which could cause burns when it gets in contact with any part of the body. It s therefore advisable to use googles to prevent the chemicals from splashing into the eyes. Safety gloves and long sleeve shirt should be worn to prevent heat and chemical burns. A shoe covering the whole part of the feet should also be worn as accidents such as the falling to the ground of the heated liquid may occur in the laboratory. This will help protect the feet from contact with the unknown liquid. Nose masks should also be put on to prevent inhalation of toxic chemicals into the body.

Answer:

the prey of crabs would be positively affected, and the predators of crabs would take a negative effect to the extinction of crabs

Explanation:

small clams, starfish, snails, worms, squid, mussels, shrimp and small fish would all be positively affected if crabs were to go extinct, because all that is listed are part of a crabs diet, for both large and small crabs. the ones which would be negatively affected would be the predators of crabs, such as cobia, eels, striped bass, jellyfish, red drum, American eels, sharks, dogfish, sea rays, and smaller fish. they would take a negative affect to the extinction of crabs because as said before, these are all predators of crabs, so the extinction would remove them from their diet, forcing them to find other sources for food

Although not present in all bacteria, this cell covering often enables cells that possess it to resist the defenses of host organisms, especially their phagocytic cells. capsule option d).

Little, single-celled creatures called bacteria exist. Almost all areas of the world are home to bacteria, which are essential to its ecosystems. Several organisms can survive in environments with high pressure and temperatures. In fact, it's thought that there are more bacterial cells in the human body than there are human cells.

As bacteria lack a nucleus, they are categorised as prokaryotes. These are microscopic organisms with very basic cell structures. The walls of bacteria's cells. A bacterium diagram would depict each cell's structure within the cell walls. DNA, ribosomes, and cytoplasm are all present in every bacteria.

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Answer:

white rhinos live in the savannas of Kenya, Namibia, and Zimbabwe, though the vast majority are found in South Africa.

Explanation:

The purpose of pressing the pushbutton of a pipettor to the second stop is to expel any remaining liquid. So the correct option is a.

When using a pipette to dispense a precise volume of liquid, it is important to ensure that all of the liquid is delivered to the desired location. Pressing the pushbutton of a pipette to the first stop allows the pipette to aspirate the liquid, while pressing it to the second stop expels any remaining liquid. This ensures that the correct volume of liquid is delivered and that there is no residual liquid left in the pipette that could affect subsequent measurements.

Therefore, option A (to expel any remaining liquid) is the correct answer. Options B, C, D, and E are not accurate because they do not describe the purpose of pressing the pushbutton to the second stop.

A pipette is a laboratory instrument used to measure and transfer a precise volume of liquid from one container to another. To use a pipette, the user must first set the desired volume using the volume adjustment knob. Then, the pipette tip is immersed into the liquid to be transferred, and the pushbutton is depressed to the first stop. This aspirates the liquid into the pipette tip.

After the desired volume of liquid has been aspirated, the pipette is removed from the liquid source and the tip is positioned over the target container. The pushbutton is then depressed to the second stop to dispense the liquid from the pipette tip. This ensures that all of the liquid is delivered to the target container, without any remaining liquid in the pipette tip that could affect subsequent measurements.

Pressing the pushbutton of a pipette to the second stop is important to ensure accurate and precise liquid transfer, and is particularly critical when working with small volumes of liquid. It is essential to carefully follow the manufacturer's instructions for use when working with pipettes to ensure accurate and reliable results.

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Answer:

I'm pretty sure you're talking about galls

Explanation:

Answer:

These bumps are called galls, and they usually appear due to the presence of insects or mites.

Answer:

I hope this helps :)

Explanation:

Animals get their energy from plants or other animals. I attached an image of a energy pyramid to show how energy travels through the food chain and how energy is lost as heat as it travels up the food chain.

Answer:

Explanation:

(a) The two variables being compared are the occurrence of accidents (drivers with accidents vs. controls) and the infection status with Toxoplasma gondii (infected vs. uninfected). In this case, the explanatory variable is the infection status with Toxoplasma gondii, and the response variable is the occurrence of accidents.

(b) To depict the data in a graph, we can create a 2x2 contingency table or a bar chart. Since the data is already provided in a 2x2 table format, we can use a bar chart to visualize the comparison between the variables.

markdown

                       | Infected | Uninfected |

------------------------------------------------

Drivers with accidents  |    21    |     38     |

Controls                |    38    |    211     |

In the bar chart, we would have two bars representing the occurrence of accidents: one for drivers with accidents and one for controls. Each bar would be divided into two sections representing the infection status: infected and uninfected.

To determine if the two variables are associated in this dataset, we need to assess if there is a difference in the distribution of infection status between the drivers with accidents and the controls. If there is a notable difference, it suggests an association between the variables.

The problem is comparing whether being infected with Toxoplasma gondii influences involvement in car accidents. An explanatory graph can be created and a statistical analysis such as chi-square test can give a more accurate inference on the association between these two variables.

(a) The two variables being compared in this problem are 'status of being infected with Toxoplasma gondii' and 'involvement in car accidents'. Here, the explanatory variable is 'status of being infected with Toxoplasma gondii' because we are examining its effect on the response variable, 'involvement in car accidents'.

(b) For depicting the data in a graph, one could create a bar graph with two variables 'Infected' and 'Uninfected', represented along the horizontal x-axis. The vertical y-axis could represent the quantity of people from the two groups: 'Drivers with accidents' and 'Controls'.

If the bar of 'Infected' drivers with accidents is significantly higher than 'Infected' controls, then we can say these two variables are associated in this data set. Otherwise, the association is not significant. To be sure, a statistical test such as chi-square test would provide a more definitive answer.

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Answer:

Explanation:

-Responsiveness to the environment - The organisms can respond to objects in its environment

-Growth and change - The organism can develop, grow, change

-Ability to reproduce - The organism can reproduce on its own or with others from their species

-Have a metabolism and breathe

-Maintain homeostasis

-Being made of cells

-Passing traits onto offspring