Biology Middle School

1. Fill in the blanks using words from the lesson.

a. The mineral _______________ , silicon dioxide SiO2, is created by combining the elements silicon and oxygen.

b. Coal, from plant materials, and _______________, created by corals and other sea creatures, are not minerals even though they are mined like many ores.

c. A _____________________ is a naturally occurring, inorganic solid that has a definite chemical composition with a structure.

d. ________________________ is a rock that forms when lava from a volcano cools without crystallizing.

e. A ______________________ mineral has a luster if it looks like a polished metal such as gold, aluminum, lead or copper.

f. Fredrick Mohs, a mineralogist, devised a scale to test a mineral's resistance to being _____________________.

g. Conchoidal fracture in minerals creates a smooth _______________________ surface that is similar to the surface of a conch or seashell.

h. When a diamond cutter wants to get rid of a ______________ in a diamond he separates the flaw from the rest of the diamond by cleaving it off.

i. Mineral collectors use a mineral's _________________________ as a way to eliminate minerals when they are trying to identify an unknown mineral.

j. The most common method of obtaining a _______________________ is by drawing a piece of the mineral across a piece of unglazed porcelain.

Answers

Answer 1

The correct options to fill in the gaps are:

mineral silica mineralBasaltmetallic mineral scratched curved inclusion characteristicsstreak

What are minerals?

A mineral is simply defined as any pure substance that is known to have a unique composition and structure

The mineral silica , silicon dioxide SiO2, is created by combining the elements silicon and oxygen.

Coal, from plant materials, and Limestone, created by corals and other sea creatures, are not minerals even though they are mined like many ores.

A mineral is a naturally occurring, inorganic solid that has a definite chemical composition with a structure.

Basalt is a rock that forms when lava from a volcano cools without crystallizing.

A metallic mineral has a luster if it looks like a polished metal such as gold, aluminum, lead or copper.

Fredrick Mohs, a mineralogist, devised a scale to test a mineral's resistance to being scratched.

Conchoidal fracture in minerals creates a smooth curved surface that is similar to the surface of a conch or seashell.

When a diamond cutter wants to get rid of an inclusion in a diamond he separates the flaw from the rest of the diamond by cleaving it off.

i. Mineral collectors use a mineral's characteristics as a way to eliminate minerals when they are trying to identify an unknown mineral.

The most common method of obtaining a streak is by drawing a piece of the mineral across a piece of unglazed porcelain.

Learn more about minerals at: https://brainly.com/question/15844293

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Related Questions

HELPPPPPP I NEED ASAP
Question: What is the role of photosynthesis in the cycling of matter and the flow of energy into and out of organisms?
Answer: Some organisms transform solar energy into chemical energy through the process of photosynthesis, which is subsequently used to the production of carbohydrates.


Why does the evidence support your claim? Justify your evidence and how it supports your claim. A few sentences that explain the science behind WHY and HOW the evidence supports the claim:

Academic vocabulary
Make connections
Introductory sentence stems:
Based on the evidence…
It can be concluded…
The evidence reveals/indicates…
Concluding statement stems:
This confirms…
Therefore,
All this proves…
In conclusion…
As a result

*****THE PICTURE IS MY EVIDENCE I JUST NEED A REASONGING FOR MY EVIDENCE******

Answers

Answer: By the process of photosynthesis, some organisms convert solar energy into chemical energy, which is then used to produce carbohydrates.

Organisms maintain their stability by responding to changes in their environments. If a rabbit is being chased by a predator, it will respond by running away. Running away from danger helps keep rabbits alive in an environment with predators. The approaching predator is an internal stimulus that causes a rabbit to run away. true or false

Answers

True
It’s an animals natural instinct to run away from a predator
External stimulus is correct

What is a soil Profile

Answers

Answer: In simple terms, a Soil Profile is a cross section of all the layers of soil which includes topsoil, subsoil  and parent rock

Explanation:

A Soil Profile is a layer parallel to the soil surface whose physical, chemical and biological characteristics differ from the layers above and beneath.

help asap pls! :00

Clownfish and sea anemones both benefit from their relationship. Which of the following relationships do they have? :DD
_____________________________________________

A. predatory


B. mutualistic


C. commensalistic


D. parasitic

Answers

This is a mutualistic relationship because they both benefit from the relationship.
The answer is B hope this helps

What structures help us determine evolutionary relationships between species? Explain.

Answers

Answer:

Homologous genes

Biologists often compare the sequences of related genes found in different species (often called homologous or orthologous genes) to figure out how those species are evolutionarily related to one another.

Hope this helped :]

Answer:

Homologous Genes

Explanation:

Homologous structures provide evidence for common ancestry, while analogous structures show that similar selective pressures can produce similar adaptations (beneficial features). Similarities and differences among biological molecules (e.g., in the DNA sequence of genes) can be used to determine species' relatedness.

What is a metamorphic series?

Answers

Answer:  A metamorphic facies series is a sequence of facies that. occurs across a metamorphic terrane due to differences in pressure and temperature (P/T) conditions.

Explanation:

help asap please!! :DD

Oxpeckers have a mutualistic relationship with rhinoceros. Oxpeckers eat the ticks that are on the rhinoceros.

Which of the following describes how the energy flows in this relationship?
______________________________________________________________
READ CAREFULLY!!

A. The energy flows from the rhinoceros to the tick, and then from the tick to the oxpecker.


B. The energy flows from the tick to the rhinoceros, and then from the rhinoceros to the oxpecker.


C. The energy flows from the rhinoceros to the oxpecker, and then from the oxpecker to the tick.


D. The energy flows from the oxpecker to the tick, and then from the tick to the rhinoceros.

_____________________________________________________________
Please be sure you know its correct as this is my last subject till i go on break

Answers

The answer would be “A”

Answer:

The energy flows from the rhinoceros to the tick, and then from the tick to the oxpecker.

Explanation:

Pls, tell me if I got it wrong:)

Hope it helps:)

Someone please help I need this ASAP!!!

Answers

Animal and plant cells have some of the same cell components in common including a nucleus, Golgi complex, endoplasmic reticulum, ribosomes, mitochondria, peroxisomes, cytoskeleton, and cell (plasma) membrane.
Animal cell: Cell Membrane,Nucleus,cytoplasm, Chromosomes, Mitochondria
Plant Cell: Cell Wall,cell membrane, vacuole,Nucleus, Cytoplasm,Chlorophast, Chromosomes,Mitochondria

I need a good and strong debate thingy. Im going against against

Animal Population Control Debate

Any website that ends in .gov or .edu, is automatically considered reputable. MUST provide the LINK, the name of the organization that provided you with the information, and the DATE/Year for EACH of your arguments.

Answers

Debate Topic: Animal Population Control

Argument 1: Animal overpopulation leads to many problems, such as the spread of diseases and increased competition for resources.

Source: Centers for Disease Control and Prevention (CDC)

Link: https://www.cdc.gov/healthypets/health-benefits/index.html

Organization: Centers for Disease Control and Prevention (CDC)

Date/Year: 2023

Where to create strong debate topics from?

Argument 2: Euthanizing animals in shelters is a necessary part of animal population control in some areas.

Source: American Society for the Prevention of Cruelty to Animals (ASPCA)

Link: https://www.aspca.org/animal-homelessness/shelter-euthanasia

Organization: American Society for the Prevention of Cruelty to Animals (ASPCA)

Date/Year: 2022

Argument 3: Spaying and neutering pets is an effective way to control animal populations.

Source: American Veterinary Medical Association (AVMA)

Link: https://www.avma.org/resources-tools/pet-owners/petcare/spayneuter

Organization: American Veterinary Medical Association (AVMA)

Date/Year: 2022

Argument 4: Reducing the number of feral cats through trap-neuter-return programs is a humane way to control animal populations.

Source: Humane Society of the United States (HSUS)

Link: https://www.humanesociety.org/resources/what-trap-neuter-return

Organization: Humane Society of the United States (HSUS)

Date/Year: 2022

Argument 5: Animal population control is necessary to protect wildlife habitats and biodiversity.

Source: National Park Service (NPS)

Link: https://www.nps.gov/subjects/wildlife/wildlife-management.htm

Organization: National Park Service (NPS)

Date/Year: 2022

Learn more on Animal Population Control here: https://brainly.com/question/2414169

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I can suggest some arguments for the Animal Population Control Debate that you can search for on .gov or .edu websites:

- Controlling animal populations is necessary to prevent overgrazing and damage to natural habitats. (e.g. "Wildlife Population Management," U.S. Fish and Wildlife Service, 2021)
- Animal population control can help reduce the spread of diseases between animals and from animals to humans. (e.g. "Zoonoses," Centers for Disease Control and Prevention, 2021)
- Overpopulation of certain animals can lead to an increase in human-wildlife conflicts, such as property damage and attacks on humans. (e.g. "Managing Human-Wildlife Conflicts," University of California Agriculture and Natural Resources, 2021)
- Population control can help prevent endangered species from going extinct by managing the populations of predators or invasive species that threaten their survival. (e.g. "Endangered Species," U.S. Fish and Wildlife Service, 2021)
- Effective population control methods, such as spaying and neutering, can help reduce the number of animals that are euthanized in shelters due to overpopulation. (e.g. "The Benefits of Spaying and Neutering," American Veterinary Medical Association, 2021)

Remember to always cite your sources and provide the necessary information for each argument, and I hope this helped :).

Moths use light from the moon to help them navigate. An artificial light is brighter than moonlight, so the moths move toward the light instead of the moon.

In this case, seeing the bright light is the _____________, and the ______________ is moving toward the light.

Question 20 options:

response; stimulus


stimulus; response

Answers

The answer is stimulus response

HURRY!!!! Pls helpppp! <3

Answers

Answer:

1. food chain

2. sun

3. energy

4. producers

5. tertiary

6. decomposers

7. disease

Explanation:

Have a nice day!

1. Food chain
2. Sun
3. Energy
4. Producers
5. Tertiary
6. Decomposers
7. Disease

How does food move through the digestive tract?
through the opening and closing of valves
through the movement of valves
by peristalsis, the wave-like motion of special muscles
by swallowing

Answers

Answer: Los alimentos son transportados a través del tracto gastrointestinal mediante un proceso llamado peristalsis. Los órganos grandes y huecos del tracto gastrointestinal contienen una capa muscular que permite que sus paredes se muevan.


Explanation:

Food moves through the digestive tract by using the process of Peristalsis which is a involuntary constriction and relaxation of the muscles of the intestine or another canal, creating wave-like movements that push the contents of the canal forward.
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