3. Describe a chemical indicator. What is it? What is it used for? How does it work?

Answers

Answer 1

Answer: A way to test for the presence of chemicals. There is a strip that is blue or red and they test for basic or acidic chemicals. If they come In contact with the respective chemical to the strip color, then the color will change to something completely different to indicate that there is a chemical present

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Which is only active during a specific immune response?A. NeutrophilsB. MacrophagesC. LysozymesD. T cells
A pronoun's ________ refers to whether the noun you are replacing is singular or plural.a case b number c person d tense
Phineas Gage was a foreman on a railroad crew who suffered brain damage in a blasting accident. After the accident, he lost interest in his job and had difficulty maintaining any goal-directed behaviors but was still able to function and lead a relatively normal life. The capacity of his brain area to take over the functions of the damaged brain areas is known as:
These are folds in the mitochondria that contain enzymes important to ATP production and also increase the surface area for ATP production.

Corn oil has a density of 0.7 g/cm3. Water has a density of 1.0 g/cm3. A piece of plastic with a density of 0.9 g/cm3 will _____.sink in corn oil and in water

sink in corn oil and float to the top of water

float in corn oil and in water

sink in corn oil and float in the middle of water

Answers

Answer:

Corn oil has a density of 0.7 g/cm3. Water has a density of 1.0 g/cm3. A piece of plastic with a density of 0.9 g/cm3 will sink in corn oil and float to the top of the water.

Explanation:

Density is a unit that let us know the quantity of mass that a substance has per unit of volume. In a solution, the component with lower density will float, and be on the surface.

If we compare the densities of corn oil and a piece of plastic, the plastic will sink because its density ( 0.9 g/cm³ )is higher than the one of the corn oil (0.7 g/cm³).

In the case of the water, the plastic will float to the top because its density ( 0.9 g/cm³) is lower than the one of water (1.0 g/cm³).

What make the phosphorus cycle different from carbon cycle

Answers

The phosphorous cycle differs from the carbon cycle in the way that it cannot be found in the gas form.Phosphorous is only found on land, in water and in sediment.

The clownfish is a species of fish that lives between the stinging tentacles of sea anemones. The clownfish protects the anemone from anemone eating fish, while the anemone’s tentacles protect the clownfish from predators. The relationship between clownfish and anemone is an example of

Answers

Answer:

mutualism

Explanation:

Mutualism is a type of symbiotic relationship between two organisms in which both benefit and neither is affected negatively in any way.

Mutualism can be in the form of resource-resource when it involves an exchange of resources between the organisms, service-resource when a resource is being swapped for a service or, service to service when it involves exchange of services between the two organisms.

In this case, the clownfish offers protection service to the sea anemone while the sea anemone in turn also offers protection to the clownfish. This is a service-service mutualism.

Mutualism, both of the animals benefit from the relationship.

What information does the atomic number of an element provide? A. the number of neutrons in one atom of the element B. the total number of protons and neutrons in one atom of the element C. the total number of electrons and neutrons in one atom of the element D. the number of protons in one atom of the element

Answers

The answer is 'D'. Atomic number of an atom shows its total number of protons.

The answer is a or d

What is a potential consequence of using genetically engineered medicine

Answers

are there choices ???/ or are we supposed to infer ???????????

Please help me answer this its for a module 7 biology review Plate Tectonics

(Lesson 07.06)

•What are plates?

•What were the 3 key pieces of evidence Wegner used to support his theory of continental drift (he also noted the similarities in minerals found)?

•What is the theory of continental drift?

•What is Pangaea?

•What is the theory of plate tectonics?

◦The ‘puzzle’-like fit between which two continents was Wegner’s strongest support of plate tectonics?

•Which theory (continental drift or plate tectonics) is considered more of a scientific fact?

•What is a hotspot?

•How did a hotspot help Hawaii to form?

Answers

1.  the theory that Earth's outer shell is divided into several plates that glide over the mantle
2. I am not sure
3. Earth's mantle contained convection cells that dissipated radioactive heat and moved the crust at the surface
4.  supercontinent that existed during the late Paleozoic and early Mesozoic eras.
5.  the theory that the outer rigid layer of the earth (the lithosphere) is divided into a couple of dozen "plates" that move around across the earth's surface relative to each other, like slabs of ice on a lake.
6. Africa and South America.
7. I am not sure
8. a small area or region with a relatively hot temperature in comparison to its surroundings.
9. As the plate moves over a fixed spot deeper in the Earth where magma (molten lava) forms, a new volcano can punch through this plate and create an island. The Hawaiian Islands are believed to be formed from one such 'hot spot'.

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Every year, millions of acres of land are cleared by forest fires. Which of the following best describes a consequence of these catastrophic events?Carbon dioxide levels decrease rapidly in the areas near the fire.Population sizes will increase as new species move into the cleared area.Invasive species will quickly take over the disturbed area.Biodiversity will decrease in the area of the fire.