Pls, help. This material is similar to pumice because both are full of air

Answers

Answer 1

Answer:

Please ask questions properly to get an appropriate answer. We are not understanding. Thank you.

Answer 2

Answer:

bubbles

Explanation: please give me brainlyest


Related Questions

what is photosynthesis?​

Answers

Photosynthesis is the process by which plants generate simple carbohydrates. This process used the energy from the sun.

Photosynthetic reactions:Photosynthesis refers to the metabolic process by which plants and algae use the energy from the sun and carbon dioxide to generate simple carbohydrates and oxygen.

Photosynthetic reactions can be divided into light-dependent reactions and light-independent reactions.

The light-independent reactions (also called the Calvin cycle) generate simple carbohydrates such as glucose.

In conclusion, in photosynthetic reactions, plants turn carbon dioxide (CO2) and water (H2O) into simple carbohydrates by using the energy from the sun.

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Which of these structures are used to eliminate wastes in an earthworm?

A. Nephridia
B. Sperm ducts
C. Oviducts

Answers

Answer:
A: Nephridia

After a nuclear disruption in Siberia during the winter, scientists found evidence that the DNA in cells of local wildlife newboms had several mutations. Which of
the following is a valid claim that can be made about how the nuclear disruption led to mutations?
A High temperatures during the disruption caused damage to parental gametes (sex cells) resulting in mutations in newborns
mutations in newborns
B. High temperatures during the disruption caused damage to parental somatic cells resulting.
C Exposure to radiation during the disruption caused damage to parental gametes (sex cells) resulting in mutations in newborns.

D. Exposure to radiation during the disruption caused damage to parental somatic cells resulting in mutations in newborns.


Answers

Answer:

The correct answer is choice (B) the

production of proteins. Choice (A)

is incorrect because mitochondria

produce energy for the cell. Choice (C)

is incorrect because the cell membrane

controls the removal of substances

from a cell. Choice (D) is incorrect

because lysosomes break down

chemicals.

Explanation:

C. Exposure to radiation during the disruption caused damage to parental gametes (sex cells) resulting in mutations in newborns is a valid claim that can be made about how the nuclear disruption led to mutations.

What is damaged by radiation while mutations in DNA?

Radiation can cause mutations in DNA by damaging the genetic material, and these mutations can be passed on to offspring through the parent's gametes.

This is because radiation can cause mutations in DNA by breaking the chemical bonds that hold it together or by causing other types of damage that alter the sequence of nucleotides. Since gametes are the cells that are involved in reproduction and pass on genetic material to offspring, mutations in gametes can be passed down to future generations.

Somatic cells, on the other hand, are the cells that make up the body of an organism but are not involved in reproduction. Mutations in somatic cells can lead to health problems for the individual but are not passed down to offspring.

Therefore, in this scenario, exposure to radiation during the nuclear disruption likely caused mutations in the gametes of the local wildlife, which were then passed down to their offspring resulting in genetic mutations in newborns.

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Why do cells go through division?
A. Repair
B. Reproduction
C. Growth
D. All of these are correct

Answers

Answer:

The answer should be D because all of these are the reasons.

I would say the answer is A and D and not B as cell division is the process of when the cell grows in the interphase, the nucleus go to opposite side of the cell and then they split pls make me brainliest if ur reading yhis :)

HELPPPPP!!!!!
The following are true of DDAVP or desmopressin except
D. it helps to stimulate the urinary bladder to produce more urine.

C. it is administered by injection

A. it is a form of vasopressin

B. it is used to take the place of ADH

Answers

Answer:

i think its B

Explanation:

PLZ HELP BRO its about environmental systems​

Answers

The answer should be B

what is all of the dna in a set of 23 chromosomes referred to as?

Answers

Answer: The Genome

Explanation:

a change in DNA structure that might be beneficial, harmful, or neutral. What is all of the DNA in a set of 23 chromosomes referred to as? The genome

Which of the following is an example of an adaption?

A: Wolves work together to catch prey
B: A dog walks without pulling on its leash
C: Ducks swim near the shore by a picnic area, where food is always available
D: Birds living near a highway learn not to fly away every time a car passes

Answers

Answer:

D

They are adapting to their environment to increase chances of survival.


Find three consecutive odd numbers whose sum is 117. Find two ways to do this.

Answers

this isn’t biology lol
38, 39, 40
The way I did this is I knew that 50 would be too high so I assumed it was somewhere in the 30’s or 40’s so I just tried the lowest numbers in both of them then the highest in the 30’s

Megan observes four cells under a microscope and makes sketches of them as shown. Identify whether the cells are prokaryotic or eukaryotic.

Answers

Prokaryotes don’t have nucleus
Eukaryotic have nucleus

The body has a number of systems that protect against infection.
Which of the following correctly orders four of these systems from most to least foundational?
Choose 1 answer:

A. B cell lymphatic tissue, lymph node, lymphatic system

B. B cell, lymphatic tissue, lymphatic system, lymph node

C. lymphatic tissue, B cell, lymph node, lymphatic system

Answers

Th appropriate ordering of the body system from least to most foundation in which they protect the body against infection is as follows.

 cell lymphatic tissue, lymph node, lymphatic system, option A is correct.

The body has levels of organisation that build on each other. Cells make up tissues, tissues make up organs, and organs make up organ systems. The function of an organ system depends on the integrated activity of its organs

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a mechanism for evolution in nature

Answers

Answer:

Natural selection

Explanation:

Have a great day!

Answer:

natural selection

Explanation:

natural selection is one of many mechanisms for evolution in nature. it's one of the most viewed mechanisms for evolution. Natural selection occurs when one allele makes an organism that is more or less fit, that has the ability to survive and reproduce.

hope this helps :)

How does the water cycle cause weather? Choose any that are correct

Answers

Answer:the 1st and 2nd one

Explanation:

I’m probably late but the reason is that they help in the process of forming a cloud that will eventually lead to weather like it being cloudy or rain.

We need to recycle our waste because Earth is a closed system with respect to
matter, and new matter does not enter the environment. Agree or disagree

Answers

I disagree because although recycling is good, Earth firstly is not a closed system and new matter enters the environment all the time, such as comets.

In terms of matter, the Earth is often referred to as a closed system. In other words, the total amount of matter on Earth neither changes nor becomes more or less; Instead, it can take on different forms due to different processes.  So, I am agree with this statement.

Although the Sun provides the world with continuous energy, most of the actual matter on Earth is recycled and used in various cycles. Recycling of waste is important because it enables us to recover useful materials and resources, reducing the need for mining new raw materials from the earth. Recycling helps us to reduce the environmental damage caused by the extraction and disposal of waste as well as the depletion of natural resources. It helps maintain long-term equilibrium inside a closed system of matter on Earth.

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Which process is absent in animal cells?


making proteins

chemical reactions

respiration

photosynthesis

Answers

Answer:

photosynthesis

Photosynthesis animal cells does not use a photosynthesis ☺️.

what are the two primary types of water pollution that have to do with where the pollution came from
Point source and non point source
Physical and liquid
Groundwater and surface water
Chemical and biological

Answers

Answer:

Groundwater and surface water .

Explanation:

Note:- If you have more questions then let me know !!

Which of the following describes a process of succession after a forest fire?
A. Small plants and trees grow back at the same time.
B. Two types of plants grow side by side.
C. Small plants grow but are eventually replaced by larger plants.
D. Animals and plants both grow in the area.
SUBMIT

Answers

Answer:

D if I'm D correct, or A maybe C, mostly D.

Answer:

C. Small plants grow but are eventually replaced by larger plants

Explanation:

explain the interaction between geological events, human population, and the environment

Answers

The relationship between the environment, human population and geological events is complex and multidimensional. While human activities can also have significant effects on geological processes, geological events such as earthquakes, volcanic eruptions and climate change can have significant effects on the environment and human populations.

What is an Environment?

The conditions and forces that surround an organism, population or community are called its environment. It includes all elements of the Earth, both living and non-living, such as the atmosphere, hydrosphere, lithosphere, and biosphere.

The environment is a complex system that living things interact with and influence how they survive, develop and thrive. This includes biological elements such as plants, animals, microorganisms and their interactions, as well as physical elements such as temperature, light, water, soil, wind and topography.

Therefore, the relationship between the environment, human population and geological events is complex and multidimensional.

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The single stream recycling program that they partner with makes it convenient to
homeowners since they can put all of their recycling in one bin, what is the major drawback
to this type of recycling?
a. It is inconvenient for homeowners
b. It reduces how much stuff can be recycled
C. It is cost effective
d. It has to be sorted and contamination is higher

Answers

Answer:

Putting items in the recycling bin that can’t be recycled can contaminate the recycling stream. After these unrecyclable items arrive at recycling centers, they can cause costly damage to the equipment. Additionally, after arriving at recycling centers, they must be sorted out and then sent to landfills, which raises costs for the facility.

Explanation: d

The following are problems with rapid growth *
•overcrowded schools
•polluted rivers and drinking water
•barren land
•all above

Answers

Answer:

all above

Explanation:


The organelles that break down lipids, carbohydrates, and proteins into
small molecules that can be used by the cell are called *
A. vacuoles
B. lysosomes
C. ribosomes
D. microfilaments

Answers

Answer: B
Explanation: Lysosomes are membrane-enclosed organelles that contain an array of enzymes capable of breaking down all types of biological polymers—proteins, nucleic acids, carbohydrates, and lipids.

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What is a polar molecule?

Answers

Answer:

a polar molecule is a molecule that has a charge on one side of the molecule, that is not cancelled out.

Explanation:

i hope this helps you!

Answer: a molecule that has both positive and negative ions

Explanation: a water molecule has an oxygen element and 2 hydrogen elements the oxygen is a negative ion and the hydrogen ions are positive

why is modification of seed is useful​

Answers

Benefits of modification of seed :-

More nutritious food.Disease- and drought-resistant plants that require fewer environmental resources (such as water and fertilizer)Less use of pesticides.Increased supply of food with reduced cost and longer shelf life.Faster growing plants.

Multiple choice please help!

Answers

Answer:

A=T is the answer ..............

Answer:

The correct answer is A) A=T

Explanation:

The purpose of the light-dependent reactions of photosynthesis is to -

a
split water to form oxygen
b
produce sugars
c
join glucose molecules to form starch
d
uses energy molecules like ATP

Answers

I think the correct answer is B.

what is the natural rate of nitrogen fixation in earth’s ecosystems?

Answers

Answer:

A reasonable upper bound for the rate of natural nitrogen fixation on land is thus about 140 Tg of N per year.

Explain the carbon circle in 5 sentences

Answers

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Answer:Carbon moves from the atmosphere to plants.

Carbon moves from plants to animals.

Carbon moves from plants and animals to soils.

Carbon moves from living things to the atmosphere.

Carbon moves from fossil fuels to the atmosphere when fuels are burned.

Carbon moves from the atmosphere to the oceans.

Explain what is wrong with the cells shown in the image below.

Answers

Answer:

wrong answer

Explanation:

it doesn't show any thing that why its wrong

Although both eukaryotes and prokaryotes are capable of causing infectious diseases in humans, eukaryotes are unique because they have a/an:

Answers

Answer:

organized nucleus

Explanation:

How many chromosomes will be in a fertilized egg if the sperm has a monosomy disjunction error?

Answers

Answer:

About half of all girls with Turner syndrome have a monosomy disorder. Monosomy means that a person is missing one chromosome in the pair. Instead of 46 chromosomes, the person has only 45 chromosomes.

Explanation:

Have a great day!

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