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4 years ago

Streams that flow beneath melting glaciers leave long ridges of layered sediments, known as

1 answer:

6 0

Streams that flow beneath melting glaciers leave long ridges of layered sediments, known as Esker. Eskers are formed within ice-walled tunnels by streams which flowed within and under glaciers. They tended to form around the time of the glacial maximum when the glacier was slow and sluggish and after the retaining ice walls melted away, stream deposits remained as long winding ridges.

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Which type of membrane protein is characterized by having a unique strand of sugar molecules attached to it?

Galina-37 [17]

1. The correct answer is: cell recognition protein

2. The correct answer is: The nonpolar tails are repelled by water, so they position themselves in the middle of the bilayer. The polar heads are attracted to water, so they point outward.

3. TRUE is As cell size decreases, the surface area-to-volume ratio increases.

4. The correct answer is: have no nucleus

have no membrane-bound organelles

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3 years ago

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What roles does cholesterol play in our cells and in the body?

natali 33 [55]

Answer: Cholesterol helps your body build new cells, insulate nerves, and produce hormones.

Explanation:

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4 years ago

Genetic modification in agriculture is like nuclear power: nobody loves it, but climate change has made it an important option.

Alenkinab [10]

The correct answer is option c, that is, people voting not to allow government money to fund genetic modification research.

The scientists from the Food and Drug Administration had continuously warned that the genetically modified foods can develop hard to detect and unpredictable side effects, like toxins, allergies, nutritional issues, and new diseases.

The GM plants, like corn, soybean, canola, and cottonseed, have had foreign genes forced into their DNA. The inserted genes come from species, like viruses and bacteria that have never been in the supply of human food.

The genetic engineering procedure develops massive collateral destruction, making mutations in several locations all through the DNA of the plant. The natural genes can be permanently turned off or deleted, and many may have modified their behavior.

Even the gene inserted may get rearranged or damaged, and may produce proteins, which can promote disease or initiate allergies.

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3 years ago

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1. Name the two major divisions of the nervous system; list the organs/tissues found in each.

Jet001 [13]

Answer:

1.Structural Divisions of the Nervous System. The nervous system can be divided into two major regions: the central and peripheral nervous systems. The central nervous system (CNS) is the brain and spinal cord, and the peripheral nervous system (PNS) is everything else.

2.Like the nervous system as a whole, the peripheral nervous system also has two divisions: the sensory division and the motor division. The sensory division of the PNS carries sensory information from the body to the central nervous system.

3.Sensory receptors with corresponding stimuli to which they respond.

Receptor Stimulus

Apmullae of Lorenzini (primarily function as electroreceptors) Electric fields, salinity, and temperature

Baroreceptors Pressure in blood vessels

Chemo receptors Chemical stimuli

Electromagnetic radiation receptors Electromagnetic radiation

Electroreceptors Electrofields

Hydroreceptors Humidity

Infrared receptors Infrared radiation

Magnetoreceptors Magnetic fields

Mechanoreceptors Mechanical stress or strain

Nociceptors Damage or threat of damage to body tissues (leads to pain perception)

Osmoreceptors Osmolarity of fluids

Photoreceptors Visible light

Proprioceptors Sense of position

Thermoreceptors Temperature

Ultraviolet receptors Ultraviolet radiation

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3 years ago

If a cell is not ready to divide, it may "take a break" and enter the __________ Phase.

suter [353]

Answer:

What happens to cells that "decide" not to divide? If the decision is to not divide, the cell goes into a quiescent, or nondividing state, called G0 (G zero).

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3 years ago

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