Explain
4. When are chemical
properties observable?

Answers

Answer 1
they are observable when there is a change in color, smell, temperature, and there is a precipitate or formation of bubbles.

Related Questions

Where in a cell would you most likely find DNA?

Answers

Your answer is → compartment within the cell called a nucleus

In a cell, DNA would most likely be found inside the nucleus which is known as the controlling center of the cell.

What is DNA?

DNA stands for Deoxyribonucleic acid. It is considered the most common genetic material of living organisms. The genetic information of a particular organism is encoded with these segments, known as DNA.

The process of transcription is initiated within the nucleus of the cell which transforms DNA into mRNA. It is known as the brain of the cell. Due to compartmentalization in eukaryotic organisms, a well-defined nucleus has appeared which helps in the transfer of genetic information from one generation to the next.

Therefore, the nucleus is the region where DNA is most likely found within the cell.

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the difference between Eukaryotic and prokaryotic cells​

Answers

Answer:

Eukaryotic cells are cells with a nucleus (such as animal and plant cells) whereas Prokaryotic cells are cells without a nucleus (such as a bacterium cell)

Explanation:

help please?!?!?!?!?!?!?!

Answers

Answer:

I would guess b or d

Explanation:

HEYYYYYYYYYY PLEASE HELP!!!!!

Answers

Answer:

Velocity

Explanation:

Given the change in positive (direction) over time we are given the velocity formula.

V = Change in direction/Change in time

Since we are given a direction we can rule out speed as well as direction in itself. We can also rule out acceleration because that is the change in Velocity divided by change in time.

Giving brainliest!!!!!!!

Answers

Examine and describe cells
examine and describe cells! :)

100 Points!
Which Change over time in Landsat maps would most likely be associate with contaminated water habitats nearby?
A. increased size of dark green areas
B. increased size of gray areas
C. green areas replaced with yellow areas
D. Gray areas replace with light green areas

Answers

Answer:

The answer would be B,

Explanation:

Increased size of gray areas is the change over time in the landsat maps that would most likely be associated with the contaminated water habitats nearby. Thus, the correct option is B.

What are Landsat maps?

Landsat is a moderate spatial-resolution imagery which provides the large areas of repeated data coverage at a scale that enables the users to see the detailed human-scale processes, such as urbanization, but not the individual houses.

The Landsat series of Earth Observation satellites have continuously acquired images of the Earth's land surface, which provides uninterrupted data to help the land managers and policymakers to make informed decisions about the natural resources and the environment. The increase in the gray areas in the landsat maps is associated with the water contamination.

Therefore, the correct option is B.


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Hurry plz
Biology is . . .
A. a branch of science.
B. a static branch of science.
C. not a diverse branch.

Answers

A

biology is branch of science which deals with life

Answer:

A

A branch of science

Explanation:

Biology is the study of living things(plants and animals) and their interactions with one another and the environment. It deals with the study of life

Please help
100 point question
I will mark brainliest
Please answer the questions in the picture
Thank you :)

Answers

Answer:

4 the cube with many circles in it or box C

3 objects that float paperclip, feather, air molecules, sticker  objects that sink book, phone, human, plate.

2 ?

Explanation:

5. What is the advantage of looking at prepared slides on living and nonliving organisms under the
Micsorocope?

Answers

Answer:

Explanation:

Living:

1. You see how the organism (cell) moves.

2. You see how the organism is made up of all sorts of different things that you could not see without the help of a microscope.

3. You see how blood (for example) is made up of all sorts of cells that have far different jobs.

4. You see how bone marrow (for example) shows how different cells interact.

Non Living.

1. You see how the cell structures interlock

2. You see how different structures look under an immense magnification that you cannot see with the naked eye.

3. You see how animal and plant tissue is different.

Plz help I need help

Answers

Answer:

prokaryotic cells:

do not have a nucleusorganisms made of this cell type include bacteria

eukaryotic cells:

have nucleuscontains membran-bound organelles likes mitochondria and endoplamic reticulum organisms that are made of this cell type include plants and animals

both:

are surrounded by cell membraneribosomefilled with cytoplasmDNA

Which of the following choices is a component in the community of a wetlands
ecosystem?

A. Water
B. Sunlight
C. Soil
D. Frog

Answers

Answer: Water

Explanation:

A community is the occupied space by a population of two or more species. Water is a community component of a wetland ecosystem. Thus, option A is correct.

What is a wetland ecosystem?

Wetland is a type of ecosystem that comprises water reservoirs and has an excess of stored water in the form of bogs, marshes, and swamps. A wetland ecosystem includes many biotic and abiotic factors that interact and live together.

The wetland ecosystem is characterized by the presence of water throughout all the years. It is a valuable ecosystem that absorbs excess precipitation so as to avoid flooding and soil erosions. Hydrology, soils, and biology are the main components of the ecosystem.

Therefore, option A. water is the component of the wetland ecosystem.

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Hellpppp I really need the answers

Answers

Answer:

x- summer y- winter

Explanation:

It looks like x is closer to the equator and would therefore have hotter weather, meanwhile y looks like it's closer to the top of the planet (where its a lot colder)

This cell is dividing into two new cells. Which two statements describe the two new cells?

A. Each new cell has a unique combination of genes.

B. Each new cell contains genetic information that is different from what was in the original cell.

C. Each new cell carries genetic information that is the same as what was in the original cell.

D. Each new cell is genetically identical to the other.​

Answers

D) each new cell is genetically identical

What role does concentration gradient play in movement across a cell membrane
in active transport?

Answers

Transport across a cell membrane is a tightly regulated process, because cell function is highly dependent on maintain strict concentrations of various molecules. When a molecule moves down its concentration gradient is it participating in passive transport; moving up the concentration gradient requires energy making it active transport.

Which characteristic best explains why lentic ecosystems are more responsive to seasonal changes than lotic ecosystems?

Photosynthetic organisms keep lentic ecosystems warmer during the winter season.
Lentic ecosystems are susceptible to temperature due to their low dissolved oxygen.
Lotic ecosystems have low nutrient levels, making them more sensitive to temperature.
Lentic ecosystems tend to have smaller volumes of water compared to lotic ecosystems.

Answers

Lentic ecosystems tend to have smaller volumes of water compared to Lotic ecosystems.

Lentic ecosystem consists of still (stagnant) volume of water and good examples include ponds,lakes, basins etc.

Lotic ecosystem , on the other hand consists of a flowing volume of water and examples include seas, oceans, rivers etc.

The Lentic ecosystem usually is usually still and is affected by seasonal changes as it contains smaller volume of water when compared to the Lotic ecosystem which has a high volume.

Seasonal changes such as summer or winter affects the Lentic system easily as the small volume of water gets heated up and frozen easily which encourages more evaporation and freezing respectively.

Read more on https://brainly.com/question/25174794

Answer:

what he said^ but the answer is down here<_>

Explanation:

jk but he is right

1. Write a story about how one or more limiting factors affect a particular plant or
animal in an ecosystem, from the perspective of this plant or animal.

Answers

Answer:

-Perspective of a fox with limited prey like rabbit.

-Perspective of a tree or flower with limited water.

-Perspective of a moose with limited predators like wolves.

Explanation:

I can't write a full story for you, but I hope these can help you out!

eyn-ycgj-saw everyone is allowed here

Answers

Answer:

what is it for?...........

Answer:

Yuohahe quakceuh onuesiac

Explanation:

Maths is a difficult subject. (Make exclamatory.)

Answers

Answer:

so true

Explanation:

i wish it was easier

Agreed it needs to become more easier

What process takes place in plant and animal cells that involves chemical reactions with oxygen and releases stored energy? cell division meiosis cellular respiration photosynthesis

Answers

Answer:

cellular respiration

Explanation:

I did the test-

C. cellular respiration

Explanation: Becuase yes.

* I got the quiz*

Select all that is true about the ocean floor.
A)We know more about Mars and the Moon that we do about the ocean floor.
B)The ocean floor is relatively flat and featureless. C)The goal is to have the entire ocean floor mapped by 2030.
D)We use sonar and satellites to map the ocean floor.
E) Although there are mountain ranges underwater, they are not as tall as ones in the United States.​

Answers

Answer:

A,B and D

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Could someone help me out with this easy question? I wasn’t in class today.

Answers

Answer:

B snsjididiwhejtofijsndixichhdje

plz help and no links
Multicellular plants and animals have organs to perform specific functions.

What do eukaryotic cells have to perform specific functions?


A.cytoplasm


B.ribosomes


C.organelles


D.vacuole

Answers

Answer:

Organelles

Explanation:

Answer:

organelles

Explanation:

yeeeeeeeeeeee

States types of nervous systems ​

Answers

Answer:

The nervous system includes both the Central nervous system and Peripheral nervous system. The central nervous system is made up of the brain and spinal cord, and the peripheral nervous system is made up of the Somatic and the Autonomic nervous systems.

Explanation:

Answer:

The nervous system has two main parts:

The central nervous system The peripheral nervous system

Explanation:

The central nervous system is made up of the brain and spinal cord.

The peripheral nervous system is made up of nerves that branch off from the spinal cord and extend to all parts of the body.

Which environmental factor would cause the greatest decrease in the number of species of plants and animals living in some of the lakes in the United States?
Global warming
Ozone destruction
Acid rain
Increase in dissolved oxygen levels

Answers

acid rain, its the only thing that has to do with lakes on that list

Is 2Na + H2O → 2NaOH + H2 a balanced equation?

Answers

Answer:

Yes

Explanation:

Its reaction type is single replacement.

Which of the following sequences best illustrates primary succession in a forest?

A. forest fire – pioneer species – willow - hardwood

B. bulldozed trees – shrubby weeds – cottonwoods – pine trees

C. exposed rock – lichens – weeds – shrubs – hardwoods – stable forest

D. flood – mosses – ground cover - shrubs

Answers

Answer:

C.

Explanation:

Primary succession is where it is a new area, not one where the area was simply made uninhabitable which gets rid of A, and B. C goes into more detail as to what actually happens as lichens consume the rocks while weeds come in afterwards due to the soil being formed since the lichen has broken down the rocks. Shrubs follow because enough soil has formed. followed by hardwoods and trees cause the roots of previous plants have formed enough soil for larger organisms and eventually a forest

8- Most gymnosperms have reproductive structure called cones
true
false

Answers

Answer:

.

Explanation:

What gases was not present in earths earth atmosphere

Answers

Answer:

Primitive Earth (Before life) contained no or very little Oxygen (element#8)

According to scientific theory:

Earth had no oxygen to begin with. It had a lot of carbon dioxide, though. Somehow (We still do not know how they started growing) single-celled Carbon Dioxide-breathing bacteria slowly, over thousands to millions of years, turned most carbon dioxide into oxygen, supporting new types of life.

:)

ASAP PLEASE


What are some careers/jobs that use the scientific method while working?
Explain how each step is connected to a specific part in the job also


At least 3 THANK YOU

Answers

Answer:

Maybe an engineer.

Explanation:

They build stuff do experiments and have to guess and make hypothesis (what science has)❤️ I. really hope this helps:)

Select all the ratios that are
equivalent to each other.
A4:7
B. 8:15
C 16:28
D. 2:3
E 20:35

Answers

A,C, and E are all together …
Another set is D and B
You could use 4 and 7 as the base
4*4=16 7*4=28
4*5=20 7*5=35
—————————————————
2 and 3 are the base in the next set;
2*4=8 3*5=15
—————————————————
Sorry if it’s confusing but I believe that’s the answer
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