Question by Biology

All "Biology " Questions

The subscript in a molecular formula provides what information about the element?

Seen 1 years ago jzamudio0728 1 answers

The products of photosynthesis are glucose and ___

Seen 1 years ago larrycreg111 2 answers

a hormone that can lower blood levels of calcium ion is

Seen 1 years ago suzziiee269 1 answers

One way to covert an oil into a substance that is solid at room temperature is to A. add hydrogens, decreasing the number of double bonds in the molecules B. remove water, causing a dehydration synthesis reaction to occur C. remove hydrogens, increasing the number of double bonds D. put it in the refrigerator: when unsaturated fats cool, double bonds form and the fats solidify E. add water and shake vigorously

Seen 1 years ago larissatiago3154 1 answers

write your best definition of area.

Seen 1 years ago londonsimmons23 2 answers

If something falls out of a food web what happens to the other organisms What does a plant eat What will happen if the plant doesn't have all the resources it needs

Seen 1 years ago kaitlynhart1 2 answers

analizaron la diversidad de poblaciones de escarabajos (Coleoptera, Staphylinidae) en bosques de los Andes centrales de Colombia. Durante la fase de muestreo seleccionaron cinco sitios de estudio y realizaron cuatro muestreos cada dos meses, entre diciembre de 2008 y julio de 2009. En cada sitio trazaron un recorrido lineal con un área de 100 x 2 m y usaron dos métodos de colecta en 11 estaciones de muestreo por sitio. a. ¿Qué tipo de medición del tamaño y la densidad poblacional realizaron las biólogas? b. ¿Qué método usaron? ¿Con el método que usaron pueden estimar el tamaño y la densidad de la población?

Seen 1 years ago valenya 1 answers

Beneficios de la fotosíntesis?

Seen 1 years ago heidi2006gomez 1 answers

what hormones are responsible for inducing and regulating labor

Seen 1 years ago ethelmcdonald822 1 answers

antigen-presenting cells usually display processed antigens to t cells in the _____________.

Seen 1 years ago kelsey4884 1 answers

What is usually first in a food chain

Seen 1 years ago kaitlynhart1 2 answers

How is aerobic cellular respiration different from fermentation?

Seen 1 years ago dschool168 1 answers

Please hurry its timed

Seen 1 years ago itzzbella67 1 answers

Why does a food web have two decomposer

Seen 1 years ago kaitlynhart1 2 answers

how do plants absorb mineral salts from the soil ?

Seen 1 years ago elsaabz 1 answers

Were does all the energy start from ALL the organisms

Seen 1 years ago kaitlynhart1 2 answers

Which event is an example of condensation? A. A puddle dries when exposed to the Sun. B. A lake becomes a skating rink in the winter. C. Fog forms in a valley. D. A spilled drop of rubbing alcohol disappears.

Seen 1 years ago mr31045 2 answers

chemicals, secreted by soil fungi, which inhibit the growth of bacteria, are known as _____.

Seen 1 years ago deerhunterboy8347 1 answers

using the chart at the beginning of the animation and your knowledge of cells, what stage of the cell cycle do most cells spend the majority of their lives?

Seen 1 years ago sophieoneill55221 1 answers

You wake up in the morning and get out of bed. Does the floorfeel cold or warm on your bare feet? On the lines below, write asentence that compares how it feels to step on a bare floor and ona rug on a cold morning.

Seen 1 years ago ValeryGi1491 1 answers

during aerobic respiration, electrons travel downhill in which sequence?

Seen 1 years ago lboice4330 1 answers

aerobic fitness is how well the body transports and utilizes _______ for energy.

Seen 1 years ago Littlefoot8210 1 answers

the cytoplasm of a skeletal muscle cell has a specific name and is known as

Seen 1 years ago samanthapapes5809 1 answers

State two reasons why the fetal blood must not mix with the maternal blood?

Seen 1 years ago skylalopez99 1 answers

Doing a timed thing please hurry

Seen 1 years ago itzzbella67 2 answers

Which of the following best describes gasoline? Solid Low energy Stable Combustible

Seen 1 years ago itzzbella67 1 answers

What is a nonrenewable resource?(1 point) a resource that is in limited supply a resource that is used for energy a resource that harms the environment when it is used a resource that can replace itself quickly Are all rocks made up of one mineral?(1 point) No. If it contains more minerals, however, then it is not useful to people. Yes. If it contains more minerals, then it would lose its orderly internal structure. No. Some rocks may contain several minerals. Yes. If it contains more minerals, then it is an ore. Coal is a very useful rock that formed over millions of years from the remains of plants. Is coal a mineral?(1 point) No, coal is not a mineral because coal is made of dead plants. No, coal is not a mineral because coal can be burned to produce electricity and heat. Yes, coal is a mineral because all rocks that are useful to people are minerals. Yes, coal is a mineral because all rocks are nonliving solid minerals. Which is a positive aspect of fossil fuels?(1 point) They are ecologically friendly. . They can be recycled and reused. They provide energy for cars, trains, and heat. They do not need processing to produce energy. Which is a negative aspect of fossil fuels?(1 point) They take a long time to produce energy. They are difficult to find. They cause pollution on Earth. They are difficult to transport. Which is a disadvantage of solar power?(1 point) It requires turbines. It can be harmful to wildlife. It requires burning fuel, which causes air pollution. It can only be used where there is lots of sunlight. Which is a thick, sticky, tar-like deposit of bitumen mixed into sandy sediment?(1 point) shale sandstone oil sand coal Which statement best explains an environmental outcome of using fossil fuels for energy?(1 point) When fossil fuels are burned, hazardous ash is created and carried through the environment by wind and dropped into nearby lakes and ponds. Fossils fuels produce waste that exposes humans to dangerous levels of radiation. When fossil fuels are burned, they release toxic gases into the air that cause pollution and increase global warming. Fossil fuels release carbon dioxide which plants use to make food. Why is soil considered a vital resource?(1 point) It is hard to destroy and easy to make. It provides the source of material for different landforms. It plays a variety of roles for plants and animals. It is the place where all nutrients on Earth are stored. Which describes a renewable energy resource?(1 point) It is more prone to serious accidents. It is less expensive than fossil fuels. It produces less pollutants than fossil fuels. It consists of carbon and hydrogen molecules. Use the scenario to answer the question. Edwin buys a water bottle, reuses it twice, and then recycles it. Eleanor buys a water bottle, reuses it twelve times, and then throws it away. Which energy cost would apply to Edwin, but not to Eleanor? (1 point) the cost of transporting the bottle away from the house the cost of processing the bottle after it was no longer used the cost of producing the original bottle the cost of transporting the bottle to the store Your class goes on a field trip to observe drilling machinery. The geologists at the drill site show you displays of drilled rocks to compare different types of drills and methods. The drilled holes in one rock display are significantly larger than the holes drilled in the display next to it. Given this information, which statement is correct? (1 point) The rock display with larger holes shows petroleum drilling, which is deep underground. The rock display with smaller holes shows petroleum drilling, which is closer to the surface. The rock display with smaller holes shows copper drilling, which is deep underground. The rock display with larger holes shows copper drilling, which is closer to the surface.

Seen 1 years ago lalitor2012 1 answers

How do you remove a filter in Excel? O Clear Filter O De-Filter O Cancel Filter O Halt Filter

Seen 1 years ago epiws3rb5a 1 answers

What would happen to plants if water wasn't cohesive?

Seen 1 years ago rosefoley5515 1 answers

Which is required for both anaerobic respiration and aerobic respiration?

Seen 1 years ago chichi5588 1 answers

Recently you submitted your "bucket list" of 10 places you would like to visit/see/explore on Earth or Space . I want you to review that list and if you could only pick one place to go in your life-time where would you choose to go? Why?

Seen 1 years ago igor85 1 answers

The experimenter chooses the value of which variable? A. A responding variable B. A manipulated variable C. An experimental variable D. A numerical variable

Seen 1 years ago mo3153 1 answers

The invention of email opened an important epoch in the history of communication. Which term can replace epoch without changing the meaning of this sentence?calendareramillenniumtime line

Seen 1 years ago webbantonio1970 2 answers

Microscopes are important tools. But do you know the difference between there microscopes and when to use each type? The compound light microscope combines the power of lenses and light to enlarge the subject being viewed. The stereo microscope allows an object to be viewed three-dimensionally under the lenses. Very small, live cells, like bacterial cells should be viewed using a scanning electron microscope. The scanning electro microscope produces high-resolution, sharp, black and white 3D images. If your task was to dissect the mouth parts of a grasshopper, you would use a compound light microscope to assist you. Electron microscopes differ from light microscopes in that they produce an image of a specimen by using a beam of electrons rather than a beam of light.

Seen 1 years ago nicotheweeb28 2 answers

1) What is the full form of RBC and WBC ?

Seen 1 years ago XxItzbrainygirlxX 2 answers

Rock you in your face with your nosebone

Seen 1 years ago Cannati 2 answers

Which s an example of why the process of photosynthesis is important to life on Earth?

Seen 1 years ago quiri2004 2 answers

Seen 1 years ago nicotheweeb28 1 answers

the urinary bladder, found in the ________ region of the abdominopelvic cavity, is evenly divided between the two ________ abdominopelvic quadrants.

Seen 1 years ago Chrisdan9903 1 answers

What causes waves to occur in the ocean?

Seen 1 years ago halokittypungas 2 answers

Que es una anomalía cromosómica?

Seen 1 years ago andreaperd0m3011 1 answers

Which option is a light wavelength that chlorophyll does NOT absorb? A. Red B. Violent C. Yellow D. Green

Seen 1 years ago lgater2002 1 answers

We talked a lot about how life arises from non-living molecules through certain “emergent properties”. What is one theory that scientists have put forth to explain how the first non-living molecules may have started to resemble life as we know it (multiplying, carrying out biochemistry), and what evidence supports their claim?

Seen 1 years ago BxbbyKxyy04 1 answers

what can you infer about carbon dioxide from the fact that your body needs to breathe it out?

Seen 1 years ago jonestheprob494 1 answers

how do fatty acids travel through a cell membrane?

Seen 1 years ago Destinydr493 1 answers

During cellular respiration, what is the direct source of the energy used in the cells of consumers in the ecosystem represented below? A) the sun B) enzymes C) the atoms making up inorganic molecules D) the chemical bonds in organic molecules

Seen 1 years ago NadineLee6352 1 answers

provides care of bones muscles tendons and related tissues

Seen 1 years ago Jeannie36117 1 answers

Recall why was the Fist Continential congress called ?

Seen 1 years ago 22nieblasantonio 1 answers

____ are rocks that contain evidence of past life on Earth.

Seen 1 years ago stantxt41 2 answers

how the Integumentary System interacts with nature

Seen 1 years ago mh7hwdd2dn 1 answers

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