Sarah is viewing a specimen under the microscope using an objective lens with a magnification
of 45x. What is the total magnification of the specimen?

Answers

Answer 1
So u have to multiply 45*10 and it will equal to 450 and that’s the answer

Related Questions

Which of the following is not a producer?
a.) algae
b.) fungi
c.) plants
d.) bacteria

Answers

Answer:

answer will be A) algae

Answer:fungi

Explanation:

because it’s a  decomposer

In passive transport, molecules move__ the concentration gradient.

Answers

Answer:

In passive transport, molecules move with the concentraction gradient.

Explanation:

If molecules moved against it would be active transport.

Passive transportation has been defined as the mode of molecule movement across the semi-permeable membrane. "In passive transport, molecules move down the concentration gradient."

What is passive transport?

Passive transport has been the mode of movement of the ions and molecules from the exterior and interior of the cell through the plasma membrane. This mode of transportation has been characterized by the movement of the ions from the region of a higher electrochemical gradient.

The ions tend to move towards the region that lacks the electrochemical gradient, hence it is a movement in the direction of the lower concentration. The solute particles do not external source of energy to drive the movement from higher concentration areas.

It is a type of diffusion that uses the law of Thermodynamics to move the ions up and down the cell concentration. The movement of the oxygen gas in the body cells is an example of passive transportation.

Therefore, the ions move down the concentration gradient in the passive transport.

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The most important factor(s) which limit the number of animals that can live in a biome is/are:

Answers


Most organisms are adapted to live within a particular range of temperatures and will not survive at temperatures too far above or below their range. Precipitation limits the organisms that can be found in a biome because all organisms need water, and the bigger the animal, the more water it needs.



Hope this helped! <33

Term Definition
3. Biotic factor a. The nonliving factors in an environment
4. Abiotic factor b. A group of ecosystems that share the same type of climate
5. Biome c. All of the living organisms in an environment

Answers

Answer:

Organism, population, biological community, ecosystem, biome, and biosphereThe atmosphere is the part of the biosphere that describes the gasses on earth. The hydrosphere is the part of the biosphere that accounts for all of the water on the entirety of the surface of earth. The lithosphere is the part of the biosphere that captures all of the land masses on the earth’s crust and in the oceans.

C

A

b

Explanation:

pennfoster

3. C

4. A

5. B

Explanation:

Fecal coliform is an indicator of what type of disease?

Answers

Answer:

Explanation:

Some waterborne pathogenic diseases include typhoid fever, viral and bacterial gastroenteritis and hepatitis A. The presence of fecal contamination is an indicator that a potential health risk exists for individuals exposed to this water.

Answer:

Thermotolerant coliform bacteria (commonly referred as fecal coliforms) are the group most frequently used as indicators of fecal pollution because they behave in a similar way to most pathogenic bacteria in the environment, and, during treatment, they are abundant and easy to determine.

Your pet dog has 78 chromosomes in each of its body cells. How many chromosomes are in each of its sperm cells?

Answers

Answer:

the answer should be 39

Explanation:

the sperm cell has half as many chromosomes the a regular cell

Help!! Why do geologists radioactive/carbon dating determine absolute age? (i need this quickly!)

Answers

Absolute dating methods determine how much time has passed since rocks formed by measuring the radioactive decay of isotopes or the effects of radiation on the crystal structure of minerals. Paleomagnetism measures the ancient orientation of the Earth's magnetic field to help determine the age of rocks.

In the diagram, what type of mutation is shown?
Wild-type hemoglobin DNA
Mutant hemoglobin ONA
VIINIT
mRNA
mRNA
AANU, imam
Normal hemoglobin
Glu
Sicile-cell hemoglobin
Val
substitution - a base was changed
O insertion - a base was added
O deletion - a base was removed

Answers

Answer:

substitution - a base was changed

Explanation:

The nucleotide sequence CTT was changed to the sequence CAT. The T was substituted with an A. This changed the encoded amino acid from Glu to Val.

An insertion is where an additional base is added (e.g. if the sequence changed from CTT to CATT)

A deletion is when a base is lost (e.g. if the sequence changed from CTT to CT)


Soil is made of three different types of parent material. They are:
A) Clay, rock and sand
B) Sand, soil and gravel
C) Clay, sand, and silt
D) Silt, gravel, and clay

Answers

Answer:

c

Explanation:

In which Colorado Rockies scenario was there more erosion? Why was there more erosion in the scenario?

Answers

Answer:

There was more erosion in the Colorado Rockies scenario where there was steady rain compared to the scenario in the same area where there was only a drizzle. There is more erosion because the steady rain increased the volume of the river more than the drizzle did. Because there was more water added to the river, the river flowed faster. The faster a river flows, the more sediments it transports or erodes.

Explanation:

hope this helps<3

Answer:

There was more erosion in the Colorado Rockies scenario where there was steady rain compared to the scenario in the same area where there was only a drizzle. There is more erosion because the steady rain increased the volume of the river more than the drizzle did. Because there was more water added to the river, the river flowed faster. The faster a river flows, the more sediments it transports or erodes.Explanation: Edge 2020

5. The role of mitosis in asexual reproduction has what effect on genetic variation?
a. It greatly increases genetic variation.
b. It limits genetic variation.
C. It prevents genetic variation from occurring.
d. It has no effect on genetic variation.

Answers

Answer: D: it has no effect on genetic variation.

Explanation:

DNA provides a very significant role in the formation and development of an organism.what is that role?

Answers

Answer:

The significant role that DNA provides is the organism's genetic information. It stores its information inside, and that's what makes up all the traits of the organism. All known cellular life contains DNA for this reason, and basically serves as long-term storage of information about the organism.

How do the equations help explain the role of producers in the ecosystem?

Answers

Answer:

Producers are organisms that create food from inorganic matter. The best examples of producers are plants, lichens and algae, which convert water, sunlight and carbon dioxide into carbohydrates. Consumers are organisms that cannot create their food. ... The producers are the foundation of any ecosystem.

Found this on google, hope it helps, have a great day/night and stay safe!

MARKING PEOPL AS BRAINLIST⚠️

Why does cell size need to be limited?

Where does the DNA come from that is in the parent cell?

Answers

Answer:

Your genome is inherited from your parents, half from your mother and half from your father. The gametes are formed during a process called meiosis. Like your genome, each gamete is unique, which explains why siblings from the same parents do not look the same.

The need to be able to pass nutrients and gases into and out of the cell sets a limit on how big cells can be. The larger a cell gets, the more difficult it is for nutrients and gases to move in and out of the cell. As a cell grows, its volume increases more quickly than its surface area.

Explanation:

The need to be able to pass nutrients and gases into and out of the cell sets a limit on how big cells can be. The larger a cell gets, the more difficult it is for nutrients and gases to move in and out of the cell. As a cell grows, its volume increases more quickly than its surface area.\

And as for the DNA, your genome is inherited from your parents, half from your mother and half from your father. The gametes are formed during a process called meiosis. Like your genome, each gamete is unique, which explains why siblings from the same parents do not look the same.

4 pros and 4 cons of nuclear desalination

20 points

Answers

Four pros of nuclear desalination; nuclear desalination provides accessible drinking water, helps with habitat protection, provides water to the agricultural industry, and uses a large amount of energy.

Four cons of nuclear desalination; Waste Disposal,  nuclear desalination could lower down Ocean populations, nuclear desalination creates Health Concerns, and uses energy.

65 POINTS!
Scientists observed some fossils of the early ancestors of camels. Using the fossils they obtained, they prepared a phylogeny chart for camels.
Based on this chart, what can you conclude about the relationship between modern camels (Camelus) and Aepycamelus?
OLIGOCENE
PLIOCENE PLEISTOCENE
EOCENE
LOWER UPPER
MIOCENE
LOWER UPPER
Paratylopus
Eschatius
Oxydactylus Aepycamelus
(Giraffe-camel)
7-Piptylopus
Poebrotherium - Protomeryx-Procamelus-Pliauchenia-Camelus
Camelops
Stenomylus
(Gazele-camel)
Modern camels share an evolutionary relationship with Aepycamelus, but they didn't directly evolve
from them.
Aepycamelus don't share any evolutionar relationship with modern camels.
Aepycamelus are modern camels' closest extinct relatives.
Aepycamelus are modern camels' closest living descendants.

Answers

Answer:

A. Modern camels share an evolutionary relationship with Aepycamelus, but they didn’t directly evolve from them.

Explanation:

The phylogeny chart shows that modern camels share an evolutionary relationship with Aepycamelus, but they didn't directly evolve from them

What is a phylogeny chart?

A phylogeny chart is a chart that shows the relatedness of organisms by charting structural relationships in order to determine their evolutionary origins.

From the phylogeny chart , modern camels, Camelus share an evolutionary relationship with Aepycamelus as they both originate From a common ancestor, Protylopus.

However, modern camels do not directly originate from Aepycamelus.

Therefore, it can be concluded that modern camels share an evolutionary relationship with Aepycamelus, but they didn't directly evolve from them.

Learn more about phylogeny at: https://brainly.com/question/643087

Why Nitrogen have convert into ammonia?

Answers

Answer:

Explanation:

Nitrogen is a part of vital organic compounds in microrganisms, such as amino acids, proteins and DNA. The gaseous form of nitrogen (N2), makes up 78% of the troposphere. ... During the conversion of nitrogen cyano bacteria will first convert nitrogen into ammonia and ammonium, during the nitrogen fixation process.

A hurricane sweeps across the ocean and damages the houses of people living along the coast. This is an example of interactions between the

biosphere, atmosphere, and sand
hydrosphere, sand, and biosphere
atmosphere, sand, and hydrosphere
atmosphere, hydrosphere, and biosphere

Answers

Answer:

I think its atmosphere, sand, and hydrosphere

Explanation:

good luck :)

Labeling the Water Cycle
Tyt
Place each step of the water
cycle in its correct location.
Evaporation
Precipitation
Condensation
Groundwater
Transpiration
Runon +
Check
Intro

Answers

Answer:

what you have is correct

Answer: the image above is correct :))

Explanation:

because

Help pls i really need it?

Answers

I’m pretty sure the answer here would be D.

Answer:

I think B.

Explanation:

Because I know that B is in animal cell.

Brainly involved! :) Why is studying animals in the wild considered to be somewhat experimentally "out of control"?
A) There are many factors that cannot be controlled that could influence the study.
B) It does not take place in a laboratory and is therefore not a valid experiment.
C) The test subjects are not trained to behave in a certain manner.
D) The experimenters are as careful with recording their results.

Answers

Answer:

Hmmm i tied between A and C because they both seem correct but since C sounds a little off ima say A  

Explanation:

Answer:

A)

Explanation:

Other answers seem to appear only partially correct or not correct at all. If there's anything unclear, feel free to ask.

Carbon dioxide most likely enter the cell through which of the following processes

Answers

Answer:

Simple diffusion through the membrane

Explanation:

Oxygen and carbon dioxide move across cell membranes  simple diffusion, a process that requires no energy input and is driven by differences in concentration on either side of the cell membrane.

Question 4 of 5
The box shows the element nitrogen as it appears in the
periodic table.
N
Nitrogen
14.0
Which two parts are needed to make a neutral atom of nitrogen?
O A. Electron clouds with a total of 14 electrons
I B. A nucleus with three protons and four neutrons
C. A nucleus with seven protons and seven neutrons
O D. Electron clouds with a total of seven electrons

Answers

Answer:D & C

Explanation:

What will happen to the pressure in the brain if water moves into it from the blood?​

Answers

Answer:

A sudden increase in the pressure inside a person's skull is a medical emergency. Left untreated, an increase in the intracranial pressure (ICP) may lead to brain injury, seizure, coma, stroke, or death. With prompt treatment, it is possible for people with increased ICP to make a full recovery

Explanation:

A medical emergency occurs when a person's internal pressure suddenly increases. An increase in intracranial pressure (ICP) may cause brain damage, seizures, comas, strokes, or even death if left untreated.

What is brain?

The brain is a sophisticated organ that manages every bodily function as well as thought, memory, emotion, touch, motor skills, vision, respiration, temperature, and hunger. The central nervous system, or CNS, is made up of the spinal cord that emerges from the brain.

There are two distinct parts of the central nervous system: gray matter and white matter. Gray matter in the brain refers to the thicker, outer layer, and white matter to the thinner, inner layer beneath.

It is possible for patients with elevated ICP to fully recover with prompt treatment.

Therefore, A medical emergency occurs when a person's internal pressure suddenly increases. An increase in intracranial pressure (ICP) may cause brain damage, seizures, comas, strokes, or even death if left untreated.

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i’ll mark as brainliest!! and give u 20 points!! please help :(((

Answers

Answer:

A and D i think

hope this helps

I need to know the hypothesized enzyme

Answers

Answer:

Hypotheis:

If high amounts of product in the samples, '+++' , correlates with optimal temperatures and pH for enzyme activity, then...

A- PepsinB- Amylase C- thermophilic enzyme

Explanation:

Enzymes are specialized proteins that function as biological catalysts- they speed up chemical reactions. As proteins, these are susceptible to changes in temperature and pH- they function best at optimal values for both conditions, but can be denatured, rendering them inactive at relative extremes.

Each enzyme provided has its own optimal temperature and pH values.

Thermophilic enzymes are usually found in regions characterized by high temperatures. They show high thermostability, and do not become denatured at high temperatures- they thrive, and do not function well at lower temperatures.Amylase is a hydrolase digestive enzyme found in the mouth, that acts on polysaccharides like starch to break 1,4  glycosidic bonds between glucose molecules. It works best at a physiological (neutral) pH and temperatures (around 37°)Pepsin, another digestive enzyme, is a peptidase that breaks down proteins into peptide molecules. It is found in the stomach lining, where the pH  is typically low i.e. acidic due to the hydrochloric acid in digestive juices.

Thus from the table A- pepsin, B- Amylase and C- thermophilic enzyme can be hypothesized.

what are two compelling pieces of evidence that support the theory of evolution?

Answers

There are five lines of evidence that support evolution: the fossil record, biogeography, comparative anatomy, comparative embryology, and molecular biology.

The two compelling pieces of evidence that support the theory of evolution are the fossil record, and biogeography.

What is the theory of evolution?

It is the change that attributed of the species for the various generations and believed on the natural selection process,

hence, we can conclude that The two compelling pieces of evidence that support the theory of evolution are the fossil record, and biogeography.

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Meteorology is the study of
Oradar.
O meteors.
O Earth's satellites.
O Earth's atmosphere.

Answers

Answer:

Earth's Atmosphere

Explanation:

Meteorology has to do with the science behind the weather and climate on Earth.

Weather and Climate are located/produced in Earth's atmosphere, and thus Meteorology and Meteorologists study the atmosphere to give us weather updates and climate changes.

Answer:

The answer is D!

Explanation:

Earths Atmosphere.

I did the cumulative exam!

can transpiration increase or decrease deforestation?

Answers

Answer:

Decrease

Explanation:

Transpiration is the movement of water through a plants parts and then evaporating into the atmosphere. The evaporation builds over time and allows rain clouds to form which then causes rain. Rain can not only water new life and allow it to grow but prevent deforestation. When large storms roll through it's almost impossible for groups to cut down trees.

Explain how the structure of sperm cells is related to their function.

Please answer I will give brainliest to the first correct answer!

Answers

The head contains the genetic material for fertilisation in a haploid nucleus. The acrosome in the head contains enzymes so that a sperm can penetrate an egg. The middle piece is packed with mitochondria to release energy needed to swim and fertilise the egg. The tail enables the sperm to swim.

The structure of sperm cells as it relates to their function are:

The head: It helps carry the genetic information to the haploid nucleusThe acrosome: It helps the sperm enter the egg of the femaleThe middle piece: It is responsible for the release of energyThe tail: It helps the sperm to swim

A sperm cell is the male sex cell which is responsible for reproduction as it fuses with the female gamete and forms a zygote through fertilization.

As a result of this, there are different processes which are required for fertilization to occur as the sperm cell has to move through the head and fertilize with the ovule to form a new cell, called zygote.

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