Mary determined that 5 pollen grains could fit along the diameter of the field of view of her microscope. If each pollen grain has a diameter of 0.3mm what is the diameter in millimeters of the field of view of Mary's microscope
1.5mm
15mm
4.7mm
5.3mm

Answers

Answer 1

Answer:

1.5mm

Explanation:

According to this question, Mary is trying to view 5 pollen grains under her microscope. She found out that the 5 pollen grains each with a diameter of 0.3mm could fit along the diameter of the field of view of her microscope.

This means that the diameter of the field of view of Mary's microscope can be calculated as follows:

Diameter of each pollen × no. of pollen that fit in

= 0.3mm × 5

= 1.5mm

Hence, the diameter of the field of view of Mary's microscope is 1.5mm.


Related Questions

help me plz, will give 10 pointzz and a brainliest

Answers

Answer:

a. (black fur): phenotype

b. (AA, Aa, aa): genotypes

c. (Aa): heterozygous

d. (aa): hom0zygous recessive

e. (AA): hom0zygous dominant

Explanation:

(lol brainly wont let me some of the words)

I took bio and genetics I hope this helps !!!

what is mitosis? In detail​

Answers

Explanation:

a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth.

The major purpose of mitosis is for growth and to replace worn out cells.

An example of mitosis is the way the skin cells covering a child's body all multiply while they are growing

A cell membrane is very specific about what it allows to cross.how does this help the cell?

Answers

Answer:

The cell membrane is selectively permeable . It lets some substances pass through rapidly and some substances pass through more slowly, but prevents other substances passing through it at all. Some small molecules such as water, oxygen and carbon dioxide can pass directly through the phospholipids in the cell membrane

PLZ I NEED SOON!!!
Ethan began making a model to show the processes which resulted in the formation of oceans
Which of the following would be the next step in the process?
Crust is broken down
Earths crust moves
Earths plates meet
Sea floor spreading

Answers

It has to be either A or B bc the other 2 were already used, I would go with B) earth crust moves

The next step in the process is sea floor spreading. The correct option is D.

What is sea floor spreading?

Tectonic plates, which are huge chunks of the lithosphere of the Earth, split apart from one another during the geologic process of seafloor spreading.

The oceanic basin is the result of sea floor spreading.

The ocean crust and its basins are formed when the sea floor spreads and separates after the basin has been filled with water.

All of these result from various plate interactions within the planet.

New ocean floors are created by volcanic activity at spreading centers at divergent borders after the crust has developed and accumulated water.

The production of fresh crust occurs close to the margin, and subsequent crusts push against and away from it. Ocean basins are created by the development of new ocean floors.

Thus, the correct option is D.

For more details regarding sea floor spreading, visit:

https://brainly.com/question/2245510

#SPJ2

write at least three difference between arteryand vein with diagram​

Answers

bonjour,

1. Arteries carry blood from the heart to the rest of the body, whereas veins carry blood from the rest of the body back to the heart.

2. Almost all arteries carry oxygenated blood and almost all veins carry deoxygenated blood.

3. Arteries have a thick elastic muscle layer, whereas the muscle layer for veins is much thinner.

Answer:

Difference Between Artery and Vein Artery 1. Vessels which carry blood from the heart to various body parts  2. Arteries carry oxygenated blood from the heart except pulmonary artery  3. Arteries have thick elastic muscular walls  4. Valves are absent  5. Blood flows under high pressure  Vein  1. Vessels which carry blood from the various body parts to the heart  2. Veins carry deoxygenated blood from the various body parts except pulmonary vein  3. Veins have thin non elastic walls  4. Valves are present to prevent the backward flow of blood  5. Blood flows under low pressure

Hippopotamuses live in Africa’s rivers and lakes. They’re herbivores and coexist with other herbivores and carnivores. Which action could lead to a decrease in the number of hippos?

Answers

Answer:

If any of the other carnivores are predator they might eat the hippos. If the other herbivores population incresses there food supply may drop. If there is a drought there habitat will be in danger. Pouchers are also a threat to this animal.

Explanation:

Maybe the decrease in plants they eat Otherwise known as deforestation

The Hippopotamuses lives in the river and lakes of Africa. They are herbivores and co exist with other herbivores and carnivores.

There can be two possible reasons for the decrease in the number of hippos.

The carnivores lion and hyena can eat the hippo(young hippos) which will reduce the number of hippos.

The other reason could be reduction in the number of plants that hippos eat.

hope this helps

The brain is enclosed inside a bony box called ?

Answers

Answer:

The brain is enclosed inside a bony box called cranium.

I believe it’s called the skull which protects your brain and other organs

explain why men should not blame their wives for not bearing them male children​

Answers

Because you cant pick the gender of your child its random and also is the males genes that decide it I’m pretty sure

Answer:

Because the woman nor the man can control what the sex of their child is, neither party should be blamed. All a parent can do is hope that their child will be one of good character and morals, no matter their gender or anything else.

Explanation: hope this helps .

How many phylums are there in the kingdom animalia ​

Answers

Answer:

31 phylums in anamalia kindgom

Explanation:

there is no guarantee that this is the correct answer if the number of phylums are changing

what is science?????​

Answers

Answer:

Science is the study of nature around us.

Answer:

As scientist discovered that Science is the method of learning everything about the natural world.

In your opinion, what can we do to reduce our consumption and make the planet more sustainable.

Answers

In your opinion, what can we do to reduce our consumption and make the planet more sustainable.

> Being environmentally conscious is not all about plastic bags; it’s about making everyday choices that will — quite literally — determine our success or failure as a species. We can be more conscious about reducing pollution, protecting wildlife, conserving natural resources and take other actions that can help slow the rate of climate change.

> Everyone can make a difference, particularly when smart environmental choices become a habit and perhaps even begins influencing others into taking similar actions. Doing the right thing for the future of life on Earth can even have immediate personal benefits. It can tap into your creativity, can get you more engaged with your community and the world, and may contribute to a healthier lifestyle.

Things you can do to reduce our consumption and make the planet more sustainable.

Recycle.

Turn down the bag.

Buy only what you will use.

Don't invest in idle equipment.

Donate used goods.

Make your garden lively.

Buy products with less packaging.

Avoid disposable products.

Kick the bottled water habit.

Upcycle.

Give new life to old electronics.

Hope it helps!!

all plants carry on photosynthesis true or false

Answers

Answer:

true

Explanation:

i think

This is false since light energy is needed for photosynthesis to take place.

What would be considered a quantitative observation

Answers

Answer:

height of radish seedlings is measured.

Quantitative observation is a method of collecting objective data that is largely focused on numbers and values — the phrase means "related with, of, or portrayed in terms of a quantity." Sending out surveys, questionnaires, or polls is a common method of quantitative observation.

quantitative observation include age, weight, height, length, population, size, and other numerical values while, qualitative observation are color, smell, taste, touch or feeling, typology, and shapes.

OAmalOHopeO

Answer:

Gathering data in large quantities to help solve the situation.

Explanation:

imagine a boy name Marco was doing a science project about a certain specimen like a plant but he couldn't understand it he would need to us quantitive observation skills to understand an break down the problem.

Why are photsynthetic aquatic and marine protists important to ecosystems
(remember to include algaes)?

Answers

Protists and their products are essential, indirectly and directly in photosynthesis because they help organisms through their survival and ranging from bacteria to mammals. Protists feed tons of the worlds aquatic animals and species and they do not only create food but they also provide sources for sea dwelling organisms

which describe the complex carbohydrate cellulose

Answers

Answer:

Cellulose is a polysaccharide consisting of a linear chain of several hundred to many thousands of linked glucose units. Cellulose is an important structural component of the cell walls of plants and many algae.

Explanation:

Show that the acceleration is 7.5 m/s2 for a ball that starts from rest and rolls down a ramp and
gains a speed of 30 m/s in 4 s.

Answers

Answer:

(V-Vo)/t = (30-0)/4 = 7.5 m/s^2.

Scientists have developed a new type of margarine that contains plant ingredients. They expect that the margarine will lower blood cholesterol levels. They want to test their hypothesis by comparing the blood cholesterol levels of people who will consume the new margarine with those who will consume regular margarine for a few days. Both groups of people will know which type of margarine they are to consume. Which type of research design will the scientists consider

Answers

Answer:

intervention study

Explanation:

The intervention study or research helps to examine the effects of an intervention of an outcome of interest. The main purpose of this type of study is to endenger the desirable of the individuals in need.

Such studies are often prospective.

In the context, scientist who have developed a new margarine containing plant ingredients. The scientists wanted to test the hypothesis whether consuming this new margarine lowers blood cholesterol in the body or not. They gave people to consume the margarine and is doing the research study. Such a research design is called as the intervention study.

What renal and hormonal factors will cause an increased release of aldosterone from adrenal cortex?

Answers

Answer:

Renin; angiotensin I and angiotensin II

Explanation:

Renin is a key hormone involved in the renin-angiotensin-aldosterone system (RAAS), which is responsible for regulating blood pressure in response to changes in blood volume. Renin is secreted primarily by the kidneys to promote the production of the peptide hormone angiotensin in the blood vessels. Subsequently, angiotensin stimulates the release of aldosterone from the adrenal cortex, stimulating sodium retention by the kidneys. Renin acts on its substrate angiotensinogen to yield angiotensin I, which is then converted to angiotensin II by the angiotensin-converting enzyme (ACE). Finally, angiotensin 2 promotes the release of aldosterone by the adrenal cortex, which acts on renal tubules, leading to the reabsorption of sodium and water and the excretion of potassium.

The ___ in an experiment is the factor that is being
changed, or tested.

- control group
- dependent variable
- independent variable
- constant

Answers

Answer:

Independent Variable

Explanation:

The independent variable is what we are changing or what is being tested.

The control/constant group is when you do not change anything and you want to see how the object acts under normal conditions.

The dependent group is what you are measuring. (aka your data/results)

What is the likely cause for the Cheetah losing genetic diversity?

Answers

Cheetahs face extinction pressure from climate change, hunting by humans, and habitat destruction, which is reducing the size of their populations. Cheetahs' own genes also pose a challenge to their continued survival

Answer: Cheetahs face extinction pressure from climate change, hunting by humans, and habitat destruction, which is reducing the size of their populations. Cheetahs' own genes also pose a challenge to their continued survival

Explanation:

Hope it helps you if not sorry

Which of the following is a heterotroph?
*cyanobacteria
*gopher
*fir tree
*dandelion

Answers

Correct Answer is gopher

What is true of increased levels of CO2 in the atmosphere?
A. It's poisonous to plants.
B. It helps some plants grow better, while others experience less growth.
C. It reduces the amount of climate change.
D. It always helps plants grow.

Answers

Answer:

D

Explanation:

If the gene sequence of DNA is A T T C G A C T C G what will the complementary mRNA sequence be that is made during transcription?

Answers

Answer:

U A A G C U G A G C

Explanation:

The complementary bases in RNA are the same as DNA with G-C (guanine to cytosine).

But, they are different in that RNA has A-U (adenine to uracil) instead of A-T (adenine to thymine).

Using these RNA base pairs of G-C and A-U, create the complementary mRNA sequence:

A T T C G A C T C G

Translate:

U A A G C U G A G C

So, the complementary mRNA sequence will be U A A G C U G A G C

Which of the following statements about chemiosmosis is NOT true?

Hydrogen ions move down the concentration gradient.

It is caused by a higher concentration of protons on one side of the membrane.

Energy is used as protons pass through the ATP Synthase.

A net of 38 ATP is produced from each glucose molecule.

Next question-

Cellular respiration

has carbon dioxide and water as waste products

forms glucose and oxygen.

results in the formation of ADP.

occurs in the chloroplast

Answers

Answer:

I don't know the answer to the first one, but I can answer the second question. Cellular respiration has carbon dioxide and water as waste products.

Explanation:

Cellular respiration does not form glucose & oxygen and doesn't occur in the chloroplast, but does form ATP energy, carbon dioxide, & water and the process occurs in mitochondria. Photosynthesis on the other hand forms glucose & oxygen and does occur in the chloroplast.

Which of the following statements is true? Which of the following statements is true? No archaea are capable of using CO2CO2 to oxidize H2H2, releasing methane. Prokaryotes have low levels of genetic diversity. Archaea and bacteria have identical membrane lipids. The cell walls of archaea lack peptidoglycan.

Answers

Answer:

The correct answer is - The cell walls of archaea lack peptidoglycan.

Explanation:

Archaea are the prokaryotes that are different from bacteria in various ways but the most important differences are the membrane lipids and the major component of the cell wall that lacks peptidoglycan found in the cell wall of bacteria.

These prokaryotes are able to use carbon dioxide to oxidize hydrogen, releasing methane. Archaea-like prokaryotes have a high level or complex genetic diversity.

Imagine taking a bite of a pizza. Briefly discuss the role that each part of the brain takes in this simple act. Medulla, Pons, Cerebellum, Thalamus, Hypothalamus, Amygdala, Hippocampus, Parietal Lobe, Occipital Lobe, Temporal Lobe, Frontal Lobe.

Answers

Answer:

- Medulla: transmits signals between the spinal cord and higher brain levels

- Pons: transmits impulses related to the voluntary skeletal movements from the cerebrum to the cerebellum

- Cerebellum: coordinates skeletal muscle contraction, conscious/subconscious movements, maintains muscle posture, and balance

- Thalamus: regulation of the human nervous system

- Hypothalamus: maintains the overall homeostasis of the body

- Amygdala: processes fearful and threatening stimuli  

- Hippocampus: regulates learning, memory encoding and consolidation, and spatial navigation

- Parietal Lobe: processes information from the outside world (e.g., touch, taste, temperature)

- Occipital Lobe: interprets information from the eyes

- Temporal Lobes:  process sensory information (i.e., pain and auditory stimuli)

- Frontal Lobe:  higher cognitive functions (e.g., memory, problem-solving, emotions, impulse control, etc)

Explanation:

The medulla (medulla oblongata) is the lowest portion of the brainstem, which is linked by the pons to the midbrain and continues with the spinal cord. The medulla is known to transmit signals between the spinal cord and higher brain levels, thereby controlling autonomic activities (e.g., heartbeat and respiration). The pons is a mass of transverse nerve fibers that links the medulla with the cerebellum, it transmits signals from the forebrain to the cerebellum. The pons is involved in different functions, e.g., sleep, respiration, hearing, equilibrium, taste, eye movement, swallowing, bladder regulation, facial expression, etc. The cerebellum is a small part of the brain involved in physical movements (e.g., posture, balance, coordination), which receives sensory information from sensory systems, the spinal cord, and different parts of the brain. The cerebrum is the largest part of the brain, it is involved in speech, thinking, reasoning, problem-solving, emotions, initiating/coordinating movements, regulating temperature, learning, etc. The thalamus is a mass of gray matter located in the forebrain which is involved in diverse functions (i.e., relay of sensory signals, regulation of consciousness, sleep, alertness, etc). The hypothalamus is a small, central, area of the brain that connects the nervous to the endocrine system that acts to maintain the overall homeostasis of the body. The amygdala is a structure located in each hemisphere of the brain that processes fearful and threatening stimuli. The hippocampus is a structure located in the depths of the temporal lobe that regulates learning, memory encoding and consolidation, and spatial navigation. The parietal lobe is located at the upper back area in the skull, it is involved in processing sensory information from the surrounding world (e.g., touch, taste, temperature). The occipital lobes are responsible for transmitting visual information to the temporal lobes, and they are also associated with memory skills. The frontal lobe is the most anterior part of the brain, which is involved in higher cognitive functions (e.g., social interaction, motor function, memory, emotions, impulse control, problem-solving, etc).

Which of the following diseases is not caused by viruses?

Measles
Chickenpox
AIDS
Malaria

Answers

Answer:

malaria isn't caused by bacteria

In maize, yellow kernel color is dominant to white, and wrinkled kernel shape is dominant to the smooth form. Considering both of these traits jointly in self- fertilized dihybrids, the progeny appeared in the following numbers: 193 white, genes assort independently? Support your conclusion using appropriate statistical analysis. wrinkled; 184 yellow smooth; 556 yellow, wrinkled: 61 white smooth

Answers

Answer:

yellow, wrinkled are high in population whereas white smooth is lower in population.

Explanation:

Due to self-fertilized dihybrids, the offspring are yellow wrinkled, hybrid and white smooth. 556 yellow, wrinkled are high in population because of the dominant allele while on the other hand, 61 white smooth are obtained and less in number due to recessive nature that comes very little in the population. 184 yellow smooth and 193 white, wrinkled are the hybrid offspring that has both different characteristics from their parents.

How do I make a Punnet Square without knowing if traits are Dominant or Recessive? I cannot refer to the parents of the current generation, so I have to rely on that generation to create a theoretical next generation.

Answers

If you are referring to a previous generation, that would probably mean that the traits they have are the dominant ones

Explanation:

if you know all the traits possible, then the ones the parents have of a previous generation are most likely the dominant ones, from there, you can hopefully figure out another generation. could you attach a picture if this didn't help? thanks

Which of the following is a cost of using dams as a source of freshwater

Answers

Answer:

WHAT IS THE CUTTING DOWN OF TREES

Explanation:

YOU CUT DOWN OUR PRECIOUS TREES TO BUILD THE DAMS

Other Questions
The Lewis dot model of a molecule is shown.Based on the model, which of the following is true? Each carbon has three lone pairs of electrons on it. The octet of carbon atom remains incomplete in the molecule. The two carbon atoms share a total of six electrons with each other. The difference between the electronegativity of carbon and hydrogen is greater than 1.7. 3.06 as. a fraction PLEASE HELP find the missing side of the triangle. Which model best shows the movement of oxygen during photosynthesis?Plant A. AtmosphereO B. Soil - PlantC. Plant - SoilD. Plant - Atmosphere QS 8-7 Computing revised depreciation LO C2 On January 1, the Matthews Band pays $65,800 for sound equipment. The band estimates it will use this equipment for four years and after four years it can sell the equipment for $2,000. Matthews Band uses straight-line depreciation but realizes at the start of the second year that this equipment will last only a total of three years. The salvage value is not changed. Compute the revised depreciation for both the second and third years. balance the equation:2Na+3H2O-2NaOH+H2 A ball is thrown from an initial height of1 meter with an initial upward velocity of1 m/s. The ball's height h(in meters) after tseconds is given by the following. h=1+30t-5t^2Find all values of tfor which the ball's height is 11meters.Round your answer(s) to the nearest hundredth. Jerry sold 320 tickets for the school play. He sold x adults tickets for $8 each and y child tickets for $5 each. He sold $1900 worth of tickets. Write a system of equations to model the situation.What is the equation? Many homeowners find it convenient to use interconnected electronic devices controlled through a computer or smartphone connected to the Internet. However, these interconnected devices can lead to some issues. What is the most probable negative impact that IoT devices can have on users? PLS HELP ME ON THIS QUESTION I WILL MARK YOU AS BRAINLIEST IF YOU KNOW THE ANSWER!! Naomi invested $3,425 in an account that pays 3% simple interest. what was the total balance of the account after 15 years? take an interview of your parents about the difficulties faced during the pandemic while running their household activities.plz answer correctly it is my project work. Whats different for the functions 1. What is Ms. Romans employment background?Ms. Roman's employment background is that she's been a police officer for 25 years.2. What statistics from police academies in the state of New Jersey were alarming to Ms. Roman?The statistics from the police academies in the state of New Jersey that were alarming to Ms. Roman are the rates between 65 and 80 percent of women are failing due to the physical fitness test.3. What was a major reason for women failing at the police academies?A major reason for women failing at the police academies are recruits needing to pass the fitness exam within 10 short workouts and only have three weeks to try to pass due to a new policy.4. What had these police recruits been required to do in order to reach the point in the process that allowed them to take the physical fitness test?Police recruits were required to pass very lengthy background checks, medical exams, psychological exams, and clearly quit any other job.5. What data does Ms. Roman share about women serving as police officers? What data does she share about women working as police chiefs?The data Ms. Roman shares about women serving as police officers is that less than 13% of the police officers hadn't changed much in the past 20 years. Only 3% of women were police chiefs in 2013.6. 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For each of his shirt, pants, and shoes, he is equally likely to put it on correctly as incorrectly. Getting these articles of clothing on correctly are independent of each other. On the other days, the mother dresses the toddler with 100% accuracy. Given that the toddler is correctly dressed, what is the probability that today is Monday An object is acted upon by two and only two forces that are equal magnitude and oppositely directed. Is the objected necessarily in static equilibrium? Explain. You can draw a picture if that helps explain. A 10.53 mol sample of krypton gas is maintained in a 0.8006 L container at 299.8 K. What is the pressure in atm calculated using thevan der Waals' equation for Kr gas under these conditions? For Kr, a = 2.318 L'atm/mol and b = 3.978x10L/mol. what is the definition of abuse Differentiate between emperical andmolecular formula. Give an example ofa substance having different empericaland molecular formula Write the name of the definition, postulate, property or theorem that justifies the statement about the diagram.