what is the objective lenses on a microscope for

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Answer 1

Answer:

Id.k

Explanation:


Related Questions

3. What might happen to the ecosystem if this population were removed?

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Answer:

More predators kill more prey, which, along with food scarcity, decreases the population.

Explanation:

Answer: ''Population Explosions The most obvious result of the removal of the top predators in an ecosystem is a population explosion in the prey species. ''

Explanation:

There is balance between Apoptosis and Mitosis. What is the
characteristic of life that would involve maintaining this balance?
Metabolism
Respond to Stimuli
Homeostasis
Universal Genetic Code

Answers

Answer:

Homeostasis

Explanation:

how are indicator species used to assess pollution levels in the environment?

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Answer:

By monitoring changes in the population of a specific indicator species, scientists may draw conclusions about changes in a specific pollutant's levels. In addition, this method of pollution measurement demonstrates the impact of pollution on vulnerable species.

Explanation:

why man reproduce??​

Answers

Answer:

to pass off their offspring

Explanation:

i'm not sure  about what your asking  

Answer:

To pass of there offspring

What are the biological implications of the structure of the plasma membrane (how do your results about the fluid mosaic and findings relate to life and death in the ‘real’ world? Where could the materials you worked with be found affecting the real world?)

Answers

Answer:

Structure of Plasma Membranes

The primary function of the plasma membrane is to protect the cell from its surroundings. Composed of a phospholipid bilayer with embedded proteins, the plasma membrane is selectively permeable to ions and organic molecules and regulates the movement of substances in and out of cells.

Explanation:


Briefly describe the impacts of climate change on ecosystem
.​

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Answer:

can alter where species live, how they interact, and the timing of biological events, which could fundamentally transform current ecosystems and food webs. Climate change can overwhelm the capacity of ecosystems to mitigate extreme events and disturbance, such as wildfires, floods, and drought.

Explanation:

A scientist compares two samples of white powder. One powder was present at the beginning of an experiment. The other powder was present at the end. She wants to determine whether a chemical reaction has occurred. She finds that neither sample bubbles or dissolves in water. She measures the mass and volume of the solids. Sample one has a volume of 45 cm3 and a mass of 0.5 g. Sample two has a volume of 65 cm3 and a mass of 1.3 g. What should the scientist conclude?

A.
The samples have the same color, so no chemical reaction has occurred.
B.
The two samples do not react with water, so no chemical reaction has occurred.
C.
The densities of the samples are different, so a chemical reaction has occurred.
D.
The densities of the samples are the same, so no chemical reaction has occurred.
E.
The densities of the samples are different, so no chemical reaction has occurred.

Answers

Answer:

I think it is C because there densities are different.

The total variety of all living things on Earth is described as
А an ecosystem
B biodiversity
с a population
D competition

Answers

Answer:

biodiversity

Explanation:

An ecosystem is all the things in an biome but not all Earth

biodiversity is the variety of all living things

a population is the number of a species in an area

competition is when animals compete for resources

P.S. Please mark Brainliest if correct?

Why is it important to know the average mutation rate when using DNA comparisons to determine
how long ago lineages split?

Answers

Answer:

mutation rates can be used to design molecular clocks in order to estimate divergence times among species  

Explanation:

In evolutionary biology, the substitution rates (also known as mutation rates) are used for the development of 'molecular clocks' which allow estimating the divergence times among species or among taxonomic groups. Molecular clocks can be designed by estimating the divergence rate of nucleotide sequences (either DNA or RNA) and amino acid (protein) sequences. These substitution rates can also be used to track how quickly viruses evolve (for example, in a pandemic situation).

Help me please really quick

Answers

Answer:

D. electromagnetic energy

Answer:

C

Explanation:

mixed together they make helium which would be chemical

What does the prefix pseudo mean in the word pseudoscience?

false
subjective
systematic
factual

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Hii!!! I believe the answer is A. False. (:

What are 3 ways in which matter changes over time?


Please help me i have a science paper that has this question

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solid , maltings , freezing

PLEASE HELP WILL MARK THE BEST!!!!

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Answer:

#3#5#7

Explanation:

hopes this helps

Yall Im struggling, if u cant read it, the question is “why does a mountain climber need an oxygen supply at very high altitudes, even tho the air still contains 21% oxygen?

Answers

Answer: Because it is harder to draw breath in. And the cold

Explanation: At higher altitudes, it becomes more dangerous, and you can develop altitude-related illnesses such as HAPE and HACE. I read a book called Into Thin Air, and in the book the author goes into detail on the details/complications of climbing Mt.Everest and oxygen needs. Mountain climbers use canisters of oxygen called Supplemental Oxygen.

Help now please fast!!!

Answers

Answer:

29.0576 meters per second

Answer:

Explanation:

29 m/sec

Which factor is needed for both thunderstorms and hurricanes to form?

Answers

Answer:

C. rising moist air

Explanation:

for the storm to start/process it needs the moist air in order for both hurricanes and thunderstorms to happen, because the rotation with the moistness creates the storms.

Hope this helps

Answer:

rising, moist air

Explanation:

because it is i got it right on my test

What is the process called when two glucose molecules bond together to form a
disaccharide and why is it important.

Answers

Answer:

Dehydration reaction (a condensation reaction)disaccharide will provide energy for chemical reactions in the body to take place.

Explanation:

The Condensation Reaction is an organic reaction in which two molecules combine to give a single product accompanied by the formation of a molecule of water H2O. Disaccharides are produced when two monosaccharides are chemically combined. The bond called O-glycosidic, is the bond by which monosaccharides join to form disaccharides or polysaccharides. In this type of bond, an OH group of an anomeric carbon of a monosaccharide reacts with an OH group of another monosaccharide, releasing a water molecule.The main function of disaccharides is to provide energy to the cells of the human body, or glycogen. This is achieved through enzymes that act in the synthesis of the disaccharide, extracting glucose. Among the main and best known enzymes that act in this process are insulin for sucrose, lactase for lactose, and trehalase for trehalose.

Draw a line representing the rise and a line Representing the run of the line. state the slope of the line in simplest form

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Im not really sure if you’re looking for the slope-intercept but here it is lol. y = 2/1x + 2

Help with this plz
Thanks. :)

Answers

If a mutation results in an organism with new characteristics then eventually a new species will be formed if more such mutations will continue to accumulate in the individual. Mutations result into the accumulation of variations in an individual and when such variations keep on accumulating in a particular organism consistently it leads to formation of a new species or we can say that evolution has occured.

A mutation is a random change in DNA which therefore affects a gene and/or chromosome. Most mutations have no effect on the phenotype. Some influence phenotype to some extent. Very few create a new phenotype. Mutations can be inherited and therefore passed on from one individual to another. If a mutation causes a new phenotype that makes an organisms better suited to a particular environment, it can lead to rapid change in the characteristics of the individuals in that species.

Hope this helps

Which of the following statements about viruses is true?
A: A virus belongs to the Archaea Domain.
B: A virus is a single-celled organism.
C: A virus has a cell membrane made of proteins.
D: A virus can evolve.

Answers

Answer:

D: A virus can evolve.

Explanation:

Viruses are not organisms so that rules out all other options.

10. Why are algae NOT considered plants?
A. They are not green.
B. They cannot make their own energy.
C. They live in water.
D. They do not have stems, roots, and leaves.

Answers

Answer:

D. they do not have stems, roots and leaves

Algae are not considered as plants as they do not have roots, stems, and leaves.

What are algae?

They are a group of predominantly photosynthetic, aquatic, and nucleus containing organisms, which are devoid of the following things:

stemstrue rootsleaves andother unique multicellular reproductive compositions of plants

Algae comprises chloroplasts and generate food by the process of photosynthesis. However, they are not considered as plants, as they are devoid of several other compositions of true plants like roots, leaves, or stems.

Thus, the correct answer is option D.

Find out more information about algae here:

https://brainly.com/question/979323

List the four steps of mitosis in order. Describe what is happening during each phase.

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Answer:

The four stages of mitosis are known as prophase, metaphase, anaphase, telophase. Additionally, we'll mention three other intermediary stages (interphase, prometaphase, and cytokinesis) that play a role in mitosis. During the four phases of mitosis, nuclear division occurs in order for one cell to split into two.

Explanation:

Dirty or harmful substances in the environment?

Answers

Answer:

pollution

Explanation:

Pollution is the introduction of harmful materials into the environment. These harmful materials are called pollutants. Pollutants can be natural, such as volcanic ash. They can also be created by human activity, such as trash or runoff produced by factories.

Hope it helps!

Plants draw water out of the ground and release water vapor into the atmosphere.
What is this process known as?
Precipitation

Evaporation

Transpiration

Condensation​

Answers

The answer is transpiration

Answer:

D: Condensation​

Explanation:

Describe a grassland ecosystem briefly.​

Answers

A grassland is a biome, an area of land that mostly has grasses. There are wild grasses, and there may be some trees. Several parts of the world have grasslands. Grasslands are found in Africa, North America, Central Asia, South America, and near the coasts of Australia.

An area where the vegetation is dominated by grasses and other herbaceous (non-woody) plants, few to little or no trees.

why do you think using a person's own cell to make a new organ or tissue for them will increase the chance that their body will accept the transplant?

Answers

Answer:

In my personal opinion, I think this is possible because your body already knows the cell. It is already familiar with it.

Explanation:

What information about the organisms best helps the scientists to determine the evolutionary relationships among them?
Anatomical features
Reproductive strategies
DNA Sequences
Habitat types

Answers

Answer:

its c: DNA Sequences

Explanation:

I got it right

What is found between stars that looks like smoke?

Answers

Answer:

gases of nitrogen and many more

Cosmic dust consists of tiny particles of solid material floating around in the space between the stars. ... It is not the same as the dust you find in your house but more like smoke with small particles varying from collections of just a few molecules to grains of 0.1 mm in size.

Rearrange the steps of a tsunami formation in the correct order

1. two tectonic plates slide past each other underwater, causing a large movement of water

2. large ocean waves form

3. large ocean waves move in all directions away from the shifting plates

4. large ocean waves slow down and increase in height as they reach the coast

Answers

Answer:

two tectonic plates slide past each other underwater, causing a large movement of water large ocean waves form .large ocean waves move in all directions away from the shifting plates .large ocean waves slow down and increase in height as they reach the coast

Explanation:

Tsunamis are initiated underwater and usually happen as a result of underwater earthquakes which can be initiated when tectonic plates slide past each other.

This causes a large movement of water such that large waves form and move away in al directions from the source. As these waves approach the shore they slow down speed but this only increases their height such that when they make landfall the effect could be devastating.

what is site of gaseous exchange in an insect​

Answers

Answer:

what are the answers? if I knew the answers I could tell ya

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