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Define the term selectively toxic. why is it an important feature of antimicrobial agents

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Why are molecular clocks important in the construction of cladograms?

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The different forms of a gene are called ____________________. a. alleles c. chromatids b. gametes d. polar bodies

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Question 1 (Worth 2 points) The small structures in the cell that carry out the cell’s activities are known as cytoplasms organelles vacuoles nucleotides Question 2 (Worth 2 points) What is the function of the cell membrane? To provide for transportation within the cell To produce energy for the cell To protect the cell from the outside environment To provide for storage in the cell Which organelle is responsible for controlling the cell’s activities? Mitochondria Ribosome Nucleus Endoplasmic reticulum Question 4 (Worth 2 points) Which organelle contains chemicals that break down substances in the cell? Lysosomes Vesicles Mitochondria Nucleus Question 5 (Worth 2 points) The organelle responsible for providing energy to the cell is what? Vacuole Mitochondria Golgi Apparatus Nucleus Question 6 (Worth 2 points) Which organelle prepares material for storage within the cell? Vesicle Endoplasmic reticulum Ribosomes Golgi apparatus Question 7 (Worth 2 points) Cytoplasm is the jelly-like substance that fills the cell the material that makes up the nucleus another name for water the organelle responsible for DNA replication Question 8 (Worth 2 points) Vesicles are responsible for synthesis of protein formation of DNA storage and transport of material cell growth Question 9 (Worth 2 points) What organelle is responsible for manufacturing protein in the cell? Endoplasmic reticulum Nucleus Chloroplast Ribosome Question 10 (Worth 2 points) The basic unit of life is known as the cell the nucleus the neutron the atom

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Obstetric sonography is a technology that allows doctors and parents to see images of a fetus as it develops in a woman’s womb. This practice is commonly referred to as an ultrasound. Generally, a woman will get two or three ultrasounds during her pregnancy. Which is the most likely medical reason that a doctor might require a pregnant woman to get ultrasounds more frequently? to predict the due date to gather pictures for an album to prepare for special medical needs to find out the gender of the baby

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While a home was undergoing a renovation, workers discovered that there was asbestos in the walls. Before any further work could be attempted, the family that owned the house had to evacuate, and specialists were brought in to remove the asbestos. Why would the house contain a substance that forced the family to be evacuated? Asbestos is not harmful, and the family was evacuated due to routine construction protocol. Asbestos was once thought to be very useful, but now it is linked to lung cancer so the family was evacuated. Asbestos is not harmful, but the family was evacuated so that the asbestos could be recycled for another building. Asbestos was thought to be useful and is no longer used due to increasing costs to manufacture it.

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Write a paragraph or two to explain why there is little change in the pH of battery acid when it is diluted with water

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S.O.S SO I NEED TO START A PARAGRAPH ABOUT LEAVES I ALSO NEED TO END MY PARAGRAPH ABOUT STEMS. THE SENTENCE I NEED HELP FINISHING IS As the energy works its way up to the leaves the leaves ……… lease help me go on with this sentence with facts. Also I NEED SOME NERDY JOKES ABOUT PLANTS NEED TO INVOLVE A FACT ABOUT PLANT LIKE FOR EXAMPLE: OH NO MY BACK GAVE OUT A LITTLE ROSE, “OH DEAR IS THAT GIRL PICKING AT YOUR STEM AGAIN. ” YES SHE JUST DOESN’T UNDERSTAND THAT THE STEM IS THE TRANSMITTER FOR ALL NUTRIENTS FOR THE PLANT. THE REASON WE STAND TALL AND STRONG. THAT MY STEM UNLIKE THE TREE IS HERBACEOUS AND IS EASY TO BEND AND BREAK. …. ROSE ROLLS HER EYES SORRY ROSE I KNOW YOU ALREADY KNOW THIS ” NO I ACTUALLY DIDN’T” I made that joke up i need more for my project plz help. but the both questions are important.

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How does mass extinction affect species that survive? There are no surviving species if a mass extinction occurs. They will soon become extinct. They combine gene pools. They fill new roles in the changed environment.

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Without water in the vacuole, the whole plant might wilt. Describe how water enters the cell. Include the part of the cell that is responsible for allowing the passage of water into and out of the cell.

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Objects in the solar system have similarities and differences. which of the following statements best describes how Jupiter and Earth compare. A Jupiter is many times larger than Earth B Jupiter’s period of revolution is shorter than Earth’s C Jupiter and Earth both have hot surface temperatures. D Jupiter and Earth are both composed of rock an iron.

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What happens when rain falls on a piece of property that has pavement, roofs, and lawns? Where does the water go? Describe all possible pathways. Over a long rainy season, how do streams and groundwater respond?

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If many different observations can all be explained by the same theory, does that make the theory true? Does it make the theory more likely? Explain your answer.

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Chromosomes, which contain DNA, have several functions. All BUT ONE of these statements is a function of chromosomes. A) Chromosomes determine the traits of an organism. B) Chromosomes provide instructions to make proteins. C) Chromosomes determine the gender of an individual. D) Chromosomes help an organism produce usable energy

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Stella wants to test the hypothesis “If carbon dioxide levels increase, the growth rate of sunflowers will increase.” She places five young sunflower plants into similar containers and sets up pumps that release different amounts of carbon dioxide into each container. She plans to measure the daily height of the plants for two weeks and graph the data. Which additional considerations would produce the most reliable experimental results? She should also provide mist to each of the plants to keep the air moist and fertilize the plants. She should record her data in a bar graph for easy analysis. She should increase her sample size to 50 plants and place them all in the same area. The plants receiving less CO2 should be given a little more water. She should be sure to give all the flowers the same amount of water. She should make observations twice a day for four weeks for better results. She should place one flower in a similar container, but not pump carbon dioxide into it. She should also give each plant the same amount of water.

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Why do particles carried by rivers settle to the bottom as the river enters the ocean?

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Which ot the following statement is true about catalysts?

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What was the phenonmenon that is causing the bean seedling to bend?

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What is groundwater erosion?

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An ecosystem is self-sustaining as long as organ- isms have sufficient quantities of energy, oxygen, minerals, and water. when organisms die, some of these materials are recycled back to plants in the ecosystem primarily through the activity

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Which statement is not true? All planets revolve around the sun. Some planets revolve backwards. All planetary orbits are elliptical. All planets spin/rotate on their axis.

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Which of the following statements is true about tides? Tides are caused only by the moon. Tides are not caused by the moon. Tides are caused by the location of the Earth, sun, and moon. The sun is not involved in causing tides.

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Which of the following statements is true about solar eclipses? The Earth blocks the light of the sun, and casts a shadow on the moon. Solar eclipses usually last longer than lunar eclipses. A total solar eclipse can be observed only from a certain region on the Earth. Solar eclipses occur when the Earth is in a direct line between the sun and the moon.

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Which of the following statements is correct? The sun is at the center of the solar system and at the center of the universe. The sun is at the center of the solar system, but not the center of the universe. The sun is the center of the known universe. The sun is neither the center of the universe nor the center of the solar system.

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If the pendulum is allowed to continue to swing, it will eventually come to a stop. explain why.

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One reason why people should be aware of the impact of their actions on the environment is that

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The geocentric model of the universe states that the sun is the center of the solar system the Earth is the center of the universe the moon is the center of the solar system the solar system has no center

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Calcium carbonate is a chemical compound found in rocks and seashells. Its chemical formula is CaCO3. Which of the following statements is true? A. Calcium carbonate has two atoms of carbon. B. Calcium carbonate has three atoms of oxygen. C. Calcium carbonate has three atoms of carbon dioxide. D. Calcium carbonate has two atoms of oxygen.

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Please explain for all questions: 13 is below. 14. At a temperature of 30°C, the air contains 22.8g/m^3 of water vapor. What is the relative humidity? 15. Based on the date in the table, what is the temperature and the amount of water vapor air can contain?

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Element are building blocks of matter that combine chemically to form countless compounds. which of the following are example of elements? A acid, base and salt B silicon, iron, and aluminum C water, methane, and glucose D Proton, neutron and electron

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