Easy 35 points > You have a piece of quatz, whos hardness is 7, and an unknown mineral. explain how you would determine if the unknown mineral had a hardness greater or less then 7.

Answers

Answer 1

Answer: not 35 points shame on you hmph lol

Explanation:


Related Questions

How do the circulatory and nervous systems work together to maintain homeostasis | ASAP

Answers

The cardiovascular system helps maintain homeostasis by continually supplying the central nervous system--the brain and spinal cord--with oxygen and glucose. Brain cells start dying after just one minute without oxygen. The brain is the control center for all of the body's homeostatic processes.

Answer:

The circulatory and the nervous systems work together to maintain homeostasis because the circulatory system gives your brain a lot of oxygen and glucose while your brain regulates your heart rate and blood pressure. Meanwhile, your bones are busy making new blood cells. Working together, these systems maintain  homeostasis.

Hope this helps!

Why are the tais pointing inward in layer H

Answers

Answer:

Because they are hydrophobic

Explanation:

The image shows a cell membrane, which is made up a phospholipid bilayer. The phospholipid bilayer is made up of a phosphate head, which is hydrophillic, and fatty acid tail, which is hydrophobic. That means they are repelled by water.

Because the tails are hydrophobic, they are repelled by the water towards one another, while the heads remain facing outwards,

True or false: Plants release oxygen by taking CO2 and sunlight?

Answers

Answer:

True

Explanation:

Answer:

Yes this is true

Explanation:

A statement of fact meant to explain an action or set of actions about nature .

A. Laws
B. Hypothesis ​

Answers

Answer:

A. Laws

Explanation:

Answer:

Laws

Explanation:

A hypothesis is a guess based off of background knowledge while laws are strictly facts.

< Exit
Read Ch. 2.2: Limits to Growth (pgs. 46-51)
LUTE
3. What happens to a population in response to a density-independent limiting factor?
NOTEBOOK
B I U
iii
1000
Close

Answers

Answer:

............ sorry i don't now

A nursing infant is able to obtain disease fighting antibodies, which are LARGE MOLECULES, from its mother's milk. These molecules probably ENTER the cells lining through the baby's digestive track via… * 2 points a. Osmosis b. Diffusion c. Endocytosis d. Exocytosis

Answers

Answer:

The correct answer is - option C. endocytosis.

Explanation:

Endocytosis is the transfer process of large molecules from the outside of the cells by internalizing them or engulfing them in vesicles, it is possible by invagination of the surface of the cell to form vesicles.

In an infant, the antibodies like large molecules from the mother to the baby are transferred through the Mother's milk which is entered in the baby's digestive tract via Endocytosis

Which of the following is Bernoulli's principle?
1. As the speed of a moving fluid increases the pressure within the fluid decreases.
2. As the speed of a moving fluid decreases the pressure within the fluid increases.
3. As the speed of a moving fluid increases the pressure within the fluid increases.
4. As the speed of a moving fluid decreases the pressure within the fluid decreases.

Answers

Answer:

1. As the speed of a moving fluid increases the pressure within the fluid decreases.

Explanation:

Hope this helps!

The Bernoulli's principle is applied when the speed of a moving fluid increases as the pressure within the fluid decreases. Thus, the correct option is 1.

What is Bernoulli's Principle?

The inverse relationship between pressure and speed at a point in any fluid is called Bernoulli's principle. Bernoulli's principle states that "At points along a horizontal streamline, higher pressure regions have lower fluid speed and lower pressure regions have higher fluid speed".

Bernoulli's principle is based on the law of conservation of energy. The total energy (pressure energy, potential energy and kinetic energy) of a flowing liquid under constant pressure at different points differ.

Therefore, the correct option is 1. With the increase in speed, the pressure within the fluid decreases.

Learn more about Bernoulli's Principle here:

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An astronaut leaves Earth's surface and begins orbiting Earth. How will his departure from Earth affect his mass and weight?
A:His mass and weight will remain constant.
B:His mass will increase; his weight will decrease.
C:His mass will decrease; his weight will increase.
D:His mass will remain constant; his weight will decrease.

Answers

Mass– the amount of matter than an object is made of. Mass does not change with gravity. Weight– the amount of gravity acting on (pulling down on) an object (or mass). ... Earth's gravity pulls us and all objects downwards towards its center.

His departure from Earth  will affect his mass and weight by the mass

remaining constant and his weight decreasing.

Gravitational force is present on earth's surface and is responsible for

pulling bodies towards each other. It is also responsible for objects falling to

the ground thereby making them remain there.

Weight is calculated by mass multiplied with gravitational force. The

gravitational force on  a body decreases with increase in altitude which is

why mass remains constant and his weight decreases.

Read  more on https://brainly.com/question/19143910

3RD TIME ASKING THIS QUESTION!!!!!!!!!!! I WILL GIVE BRAINLEST
Sickle cell anemia is a genetic disease that affects the red blood cells. Your red blood cells are typically donut shaped
and have the job of carrying oxygen around your body. In people with sickle cell anemia, the blood cells become
crescent-shaped and are thick and sticky. They are not as able to carry oxygen, and can even get clogged in the blood
vessels blocking the flow of blood, and therefore oxygen to organs, causing pain and organ damage.
Sickle cell is caused by a genetic mutation that changes a single glutamic acid to valine in the 6 th amino acid position.

Examine the codon chart provided above (for #s 3-5), and determine what mutation likely occurred to cause the
change from glutamic acid (GLU) to valine (VAL). To help get you started, it is helpful to know that a person with
NO sickle cell at amino acid #6 has a DNA code of CTC. (4pts)
Normal RNA: ____________, Normal amino acid made: ___________
Mutated RNA: ___________, Mutated amino acid made: ___________
What type of mutation is this? ________________________________

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it would be better if you could provide a picture because this makes it very confusing

HELP PLS HURRY i really i need this done

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Hi the image won’t load? What is the question?

What would happen to the flow of energy if autotrophs did not produce more sugars than they need?

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Answer:

Your body would not have alot of energy

Explanation:

why is the SI measurement system so important to the scientific community



enter the answer in the space provided

Answers

Answer:

without the ability to measure, it would be difficult for scientists to conduct experiment of form theories and also the chemical industry, it is also essential in farming, engineering, construction, manufacturing, commerce and numerous other occupation and activities.

A scientist mixes a solid and a liquid.
The mixture gets warmer and has bubbles.
What do we know from this evidence?
A) That a reaction happened because it is warm with bubbles
B) That a reaction did not happen because it is warm with bubbles
C) That A reaction happened because there was no color change
D) That A reaction did not happen because there was no color change

Answers

Answer:

A

Explanation:

Signs of chemical reaction

The answer is A

There was evidence of a reaction

What is the climate like in the Yellowstone forest?​

Answers

Answer:

maybe it helps

Explanation:

Daytime temperatures are often around 70°F (25°C) and occasionally 80°F (30°C) at lower elevations. Nights are usually cool and temperatures may drop below freezing at higher elevations.

if a person laughs too much can they vomit out their intestine​

Answers

Answer:

no

Explanation:

they didn't vomit instead they cannot breath or not remember to breathe when a person laughs too much

Answer:

Not only vomiting out their Intestine

Laughing too much can kill you too....

PLEASE HELP ME! 70 points

Answers

Answer:

1. Nucleic Acid

2. The Nitrogenous Base

Explanation:

Can someone please help me I really need help

Answers

Answer:

A.

Explanation:

Criticizing would be the downfalls of the edible vaccines. That means A is the only good thing there. Therefore, A is not criticism of edible vaccines.

PLEASE HELP!!! (ANSWER APPROPRIATELY)

Answers

Answer:

With the boost in warmer weather and excess water, populations will boom

Explanation:

Yabbies will do best at a water temperature of between 12°C and 20°C but they will tolerate water that is a little colder or warmer. Complete immersion in water is not essential for life for the yabby. If its gills are kept moist (humid air is sufficient), it can absorb oxygen from the air and survive for many days out of water. To breed, however, it must be in water. With the water needed for breading and warmer weather used for breeding, population numbers for the Yabbies should rise.

what is it called when energy is required to move materials through a cell membrane ?

Answers

Answer:active transport

During active transport, ATP is required to move a substance across a membrane, often with the help of protein carriers, and usually against its concentration gradient. One of the most common types of active transport involves proteins that serve as pumps.


The monohybrid phenotype identifies

A) what it eats
B) where it is found
C) genes of offspring
D) how it looks

Answers

Answer:

C) genes of offspring

Explanation:

A monohybrid cross is a genetic cross between two individuals who have different genetic variation at one gene, resulting in different traits. For example, a cross between a plant with white flowers and a plant with purple flowers.

The phenotype of the offspring gives details about which trait is dominant and which trait is recessive.

13. In a forest, why do you rarely see young pine trees growing under a broad-leaved tree, such as a maple? If broad-leaved trees eventually take over a forest as pines die off, how does that affect other organisms living in the forest? How does it affect this forest ecosystem?*​

Answers

Answer:/Explanation:

Broad leaved trees would block the sunlight due to the size of their leaves. This would reduce the amount of sunlight that the pine tree could absorb, and would therefore inhibit its ability to efficiently perform photosynthesis. This would reduce the amount of food it could synthesise, and interfere with its growth and reproduction.

Without pine trees, the diversity of the ecosystem would be reduced. Several organisms rely on pine seeds and leaves as a food source. In the absence of pine trees, competition for other food sources could increase, and certain birds, squirrels etc. could die off.

Pine trees are also a habitat for many birds and small creatures. Without these trees, these animals could struggle to find efficient shelter.

A scientist makes the argument that she has found DNA evidence that shows that evolution does not exist. What would her evidence have to show for her to be correct?

A-Strong genetic similarities in closely related organisms and weak genetic similarities in distantly related organisms.

B-Weak genetic similarities in closely related organisms and strong genetic similarities in distantly related organisms.

C-Strong physical similarities among closely related organisms and also among distantly related organisms.

D-Weak physical similarities among closely related organisms and also among distantly related organisms.

Answers

Answer:

B. Weak genetic similarities in closely related organisms and strong genetic similarities in distantly related organisms

Explanation:

just took the quiz

Weak genetic similarities in closely related organisms and strong genetic similarities in distantly related organisms will be an evidence against existence of evolution.

What are the evidence for evolution?

The evidence for evolution of species include similarity in the DNA of closely related species as well as similar structural and anatomical features.

Therefore, an evidence to prove that evolution does not exist will be weak genetic similarities in closely related organisms and strong genetic similarities in distantly related organisms.

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What factors account for a location's whether?​

Answers

Latitudinal location :)

At the beginning of cellular respiration____
occurs, where glucose is broken down into pyruvate and ATP. This step does not
require any oxygen.

Answers

Answer:

glycolisis...hope its right

Which of the following is important in creating a genetically diverse population?

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Answer:

What are the choices so that i can answer the question

You would need to combine the genes from 2 different populations. Since lowering the diversity of a population with cause there to be no variation. Which means that then the population cannot evolve in different ways such as to changing environmental factors and can face an extreme risk of extinction. I hope this helped!

Cytokinesis – division of the cytoplasm resulting in two identical d_______________ cells.

Answers

Answer: daughter

Explanation: Cytokinesis results in the division of cytoplasm in a parental cell, creating 2 identical daughter cells.

Hope this helps!

Cytokinesis, the division of the cytoplasm resulting in two identical daughter cells, is caused by the mitosis process, as here the two daughter cells get an equal amount of the genetic contents.

What is the significance of cytokinesis in mitosis?

It is very important in mitosis because it aids in the division of two cells from one cell during the cell division process and results in the formation of two genetically identical daughter cells; without cytokinesis, the chromosomes would remain in the same cell, resulting in mutation as multinucleated cells are formed in such a process.

Hence, cytokinesis, the division of the cytoplasm resulting in two identical daughter cells, is caused by the mitosis process, as here the two daughter cells get an equal amount of the genetic contents.

Learn more about the cytokinesis of mitosis here.

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Which of the following statements best describes the process of photosynthesis?

Answers

Answer:

Photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.

Explanation:

May i have Brainiest

what do you think about this

Answers

Answer:

I would conclude the the answer is D. Sugar, Glucose, and Starch.

Explanation:

Hopefully this helps! If this wasn't the answer you were looking for please don't hesitate to private message me or comment here. Have a nice day/night! :)

3. What is the relationship between
adaptation and natural selection?

Answers

Answer:

hope it helps...

Explanation:

Evolution is not the same as adaptation or natural selection. Natural selection is a mechanism, or cause, of evolution. Adaptations are physical or behavioral traits that make an organism better suited to its environment. Heritable variation comes from random mutations.


this is part 2 from the question
please answer it and if you can answer part 1 ftom the question and thank you


2 Label each of the diagrams below to show whether the seeds are spread by exploding pods, wind,
water or animals.​

Answers

Answer:

I think The seed is forming into a flower or The seed is forming into a fruit.

Explanation:

The seed was forming into a plant.

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Explain ONE way in which a resource from Mali was used in Sub-Saharan trade during the period c. 1200-c. 1450 The yard needed mowing badly. Clint did not want to do it. He was tired of being the oldest child in the family and alwaysbeing given the worst and most difficult jobs. It wasn't fair that his little brother and sister were given simple things to do likeempty the dishwasher or fold the towels out of the dryer. Today, Clint decided, I'm going to rebel.Which is the most effective combination of the first two sentences of this paragraph?A)The yard needed mowing badly, Clint did not want to do itB)The yard needed mowing badly, so Clint did not want to do itC)The yard needed mowing badly, but Clint did not want to do it.D)The yard needed mowing badly, therefore Clint did not want to do it The cell membrane is found in all cells *TrueFalse 22/50 of a number is what percentage of that number 1. Marie put a 4 centimeter (cm) square block of foam in a bucket of water and it floated. 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They were on their way to America. Edward Corsi, [ . . .] was a ten-year-old Italian immigrant when he sailed into New York harbor in 1907: "My mother, my stepfather, my brother Giuseppe, and my two sisters, Liberta and Helvetia, all of us together, happy that we had come through the storm safely, clustered on the foredeck for fear of separation and looked with wonder on this miraculous land of our dreams." HELP PLEASE & I WANT EVERY STEP THIS MY GRADE NOT YA'LLSBrian rides his bike 0.27 of a mile per min. If it takes him 27 mins to ride his bike to his friends house, how far away does his friend live ? It can be more than one PLEASE HELP ME! WILL GIVE BRAINLIEST TO FIRST PERSON TO ANSWER! Please do not give me the exact answer that the platform provides! Thanks!In one paragraph, summarize the important achievements and contributions of ancient Greek and Hellenistic civilizations. Achievements include things that improved society and life for the ancient people. 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