help me please on science

Answers

Answer 1

Answer:

science is the systematic way of studying living and nonliving things in our environment


Related Questions

what type of chemical reactions do the 1-4 straight carbon chain alkanes undergo?

Answers

Answer: The two most important reactions of alkanes are combustion and halogenation. Combustion: Alkanes undergo a combustion reaction to give carbon dioxide and water. Halogenation: Alkanes undergo halogenation reaction to give haloalkane

If heart rates is 76 beats per minute how many times the heart beat in a day

Answers

Answer:

109,440 beats per day

Explanation:

75 times 60 (the amount of minutes in an hour) equals 4,560

456p times 24 (the amount of hours in a day) equals 109,440

109440 hope this helps

8
Select the correct answer.
Which statement best explains acceleration?
A.
B.
C.
D.
It is the total distance covered over a period of time.
It is a change in velocity over a period of time.
It is a change in displacement over a period of time.
It is a change in direction over a period of time.
Reset
Next

Answers

Answer:Acceleration is indeed a change in velocity over a period of time.

Explanation:

If a radiometric age can be determined is there any use for a relative age? Why or why not?

Answers

Answer:

Radiometric dating calculates an age in years for geologic materials by measuring the presence of a short-life radioactive element, e.g., carbon-14, or a long-life radioactive element plus its decay product, e.g., potassium-14/argon-40. The term applies to all methods of age determination based on nuclear decay of naturally occurring radioactive isotopes. Bates and Jackson (1984)

Explanation:

Hope this helps! <3

why the heart can be considered the muscle with the greatest elastic strength.

Answers

Answer:

Elastic strength is the ability of a muscle to absorb, store, and release energy. The more energy the muscle releases, the faster and more powerful the movement. The fact that the heart pumps 2,500 gallons (9,450 liters) of blood daily makes it the muscle with the greatest elastic strength.

Explanation:

4. The ATP yield from 2 moles of mitochondrial NADH under aerobic conditions in a eukaryotic cell would be: which option is correct a) 1 mole of ATP b) 2 moles of ATP c) 3 moles of ATP d) 4 moles of ATP e) 6 moles of ATP​

Answers

The ATP yield from 2 moles of mitochondrial NADH under aerobic conditions in a eukaryotic cell is approximately 4 moles of ATP.

During oxidative phosphorylation, each mole of NADH can generate around 2.5 to 3 moles of ATP. Therefore, for 2 moles of NADH, the total ATP production would be in the range of 4 to 6 moles of ATP. While the more precise estimate falls within the 4 to 6 moles range, the closest option provided is 4 moles of ATP. It is important to note that the exact ATP yield can vary depending on factors such as the efficiency of the electron transport chain and the specific conditions within the cell.

Since there are 2 moles of mitochondrial NADH, the total ATP yield would be around 4 to 6 moles of ATP. However, the most accurate option among the given choices is 4 moles of ATP.

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Which of the following best describes high G+C bacteria

a.) Gram-negative bacteria that include spirochetes, planctomycetes, and the CFB group

b.) A gram-positive group that includes Bacilli

c.) Gram-negative bacteria that include a large group composed of five classes of bacteria

d.) A gram-positive group that includes the Actinobacteria

Answers

Answer:

d.) A gram-positive group that includes the Actinobacteria

Explanation:

The best description of high G+C bacteria is option d) A gram-positive group that includes the Actinobacteria.

High G+C bacteria, also known as high guanine-cytosine bacteria, refer to a group of bacteria characterized by a high proportion of guanine (G) and cytosine (C) nucleotide bases in their DNA. This characteristic can be determined by analyzing the DNA composition of bacteria.

Option d) states that high G+C bacteria belong to a gram-positive group that includes the Actinobacteria. This is the most accurate description of high G+C bacteria. Actinobacteria are a phylum of gram-positive bacteria, known for their high G+C content. They are characterized by their filamentous growth and the formation of branching networks of hyphae, similar to fungi. Actinobacteria include a diverse range of organisms, such as the genus Streptomyces, which produce many antibiotics, and Mycobacterium, which includes the species responsible for tuberculosis and leprosy.

Options a), b), and c) are not accurate descriptions of high G+C bacteria. Option a) mentions gram-negative bacteria and includes spirochetes, planctomycetes, and the CFB (Cytophaga-Flavobacterium-Bacteroides) group, which are not specifically associated with high G+C content. Option b) refers to a gram-positive group that includes the Bacilli, which generally do not have a high G+C content. Option c) mentions gram-negative bacteria composed of five classes, but it does not specifically address high G+C content.

Therefore, option d) is the most accurate description of high G+C bacteria, as it correctly identifies them as a gram-positive group that includes the Actinobacteria.

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How should food workers
keep garbage cans clean
and free of buildup?

a. Sanitize the cans daily
b. Use plastic liners in the cans
c. Keep food waste in outdoor
dumpsters
d. Apply a pesticide to the bottom of
the cans

Answers

Routinely clean trash cans. Put plastic liners inside the cans to stop drips, crumbs, and other filth from accumulating and luring bugs. Never leave full trash bags lying around your business or on the property; always carry them to the nearest skip.

What is the use for plastic liners?Polyethylene liners, often known as poly bin liners, are a type of plastic liner that can be used in a variety of situations. Bulk bags, boxes, and flexible intermediate bulk containers (also known as FIBCs) are all frequently used with them to add an extra lining and layer of protection. Flexible plastic liners made of polyethylene, often known as "poly liners," are created especially to line the interior of flexible intermediate bulk containers (also known as "bulk bags" or "FIBCs"). As a starting point for production, resin for can liners is employed. Low density polyethylene (LDPE), linear low density polyethylene (LLDPE), and high density polyethylene (HDPE) are the three distinct resin types utilised to make can liners.

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Final answer:

Food workers can keep garbage cans clean and free from buildup by sanitizing the cans daily, using plastic liners in the cans, and moving food waste to outdoor dumpsters. Applying pesticide is not recommended.

Explanation:

Food workers can keep garbage cans clean and free from buildup by employing a few practical measures.

Sanitizing the cans daily: This could involve washing the cans with hot soapy water and a brush to remove any residual waste and then applying a sanitizer/disinfectant.Using plastic liners in the cans: This helps to prevent direct contact of waste with the can, reducing chances of buildup and making the cans easier to clean.Moving food waste to outdoor dumpsters: Although this could help in reducing odor and pest problems in food service areas, one should also ensure these outdoor dumpsters are correctly handled and cleaned.

Applying pesticide to the cans is not generally recommended as it could potentially contaminate food products if not used properly.

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Activity 3: Direction: Study the picture. Write the phases of the moon 1 new moon O first quarter O MOON PHASES last quarter waning crescent woving crescent Waning gibbous working globos​

Activity 3: Direction: Study the picture. Write the phases of the moon 1 new moon O first quarter O MOON

Answers

Answer:

1.full moon

2.waxing gibbous

3.first quarter

4.waning gibbous

5.new moon

6.wabing cresent

7.last quarter

8.waxing cresent

Which are vital signs?
O temperature, respiratory rate, and weight
O muscle mass, height, and weight
Oheart rate, temperature, and height
temperature, respiratory rate, and heart rate

Answers

The correct combination of vital signs is temperature, respiratory rate, and heart rate.

Vital signs are key measurements that provide important indicators of a person's physiological status and overall health. They help healthcare professionals assess and monitor a patient's condition. The vital signs typically include temperature, respiratory rate, heart rate, and blood pressure. Among the options provided, the correct combination of vital signs is temperature, respiratory rate, and heart rate.

Temperature is a measure of the body's internal heat. It can be measured orally, rectally, or with the help of infrared thermometers. Deviations from the normal range may indicate fever or hypothermia, which can be indicative of underlying health issues.

The respiratory rate refers to the number of breaths a person takes per minute. It provides insight into lung function and overall respiratory health. Abnormal respiratory rates may suggest respiratory distress or underlying pulmonary conditions.

Heart rate, also known as pulse rate, measures the number of times the heart beats per minute. It reflects cardiac activity and can be assessed by feeling the pulse at various points in the body. Deviations from the normal heart rate can indicate cardiovascular problems or other physiological abnormalities.

Weight, muscle mass, and height are not typically considered vital signs. They are important anthropometric measurements used for assessing overall body composition, growth, and nutritional status. While these measurements are relevant in healthcare, they are not classified as vital signs.

In summary, the vital signs include temperature, respiratory rate, and heart rate. Monitoring these parameters allows healthcare professionals to gain valuable insights into a patient's health status, identify potential issues, and make informed decisions regarding treatment and care.

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YOU GET 50 POINTS: Fill in the words

YOU GET 50 POINTS: Fill in the words

Answers

Answer:

meiosis

chromosome

partner

divides

chromosome

Four new cells

single set

13. List three organizations or agencies in your area that are involved in the conservation and protection of the environment. Describe the purpose of each agency/organization.​

Answers

Answer:

Union of Concerned Scientists: Works for a healthier environment and a safer world. Through this renewal award, UCS conducts technical assessments on securing weapons material in the US.

Natural Resources Defense Council: Strives to rid our food, air, water, and household products from toxic chemicals. NRDC works to protect our world's oceans from pollution and exploitation.

Environmental Working Group: Protect human health and the environment and specializes in research and advocacy in the areas of agricultural subsidies, toxic chemicals, drinking water pollutants and corporate accountable.

Explanation:

Which of the following is NOT a difference between DNA and RNA? (A) DNA and RNA help make proteins (B)DNA uses Thymine and RNA uses Uracil (C)DNA contains genetic information and RNA does not (D)DNA is a double strand and RNA is one.

Answers

Answer:

A is false

Explanation:

List 3 properties of the
hair's cuticle

Answers

Answer:

Cuticle, Cortex, MedullaBUTProperties include: SmoothnessFlatnessMalleability

Explanation:

These are the main three properties of the hair's cuticle.

Answer:

smoothness

Explanation:

elasticity, softness

what are the childhood disease?​

Answers

Answer:

well childhood disease is diseases that happens in childhood like chickenpox and etc

I hope it helps

\(\huge\textbf{Answer :-}\)

\(\large\underline{\textsf{\textbf{Childhood Diseases}}}\) are diseases that mainly occur or become symptomatic when a person is a child (0 - 18) years. The term is quite self-explanatory. Few examples will be Common Cold, whopping cough etc. Most of the childhood diseases are not dangerous.

____________________

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꧁❣ ʀᴀɪɴʙᴏᴡˢᵃˡᵗ2²2² ࿐

You see an entire pond, with the same plant across most of it. The plant seems to be surviving very well. Which adaptation does the plant most likely have?



Group of answer choices

Waterproof Leaves

Big Leaves

Short Roots

Cactus Spines

Answers

Answer: big leaves
I hope this helps

Quagga mussels, an invasive species of mollusk originally from
Russia, have been introduced to the lake after being carried in on
the hulls of boats. An assessment of the size of the quagga
mussel problem is needed, along with suggestions to curb their
population growth.
what field of science is this?

Answers

This is a problem in the field of ecology.

The problem of quagga mussels in the lake is an ecological issue that requires scientific assessment and management.

It falls under the discipline of ecology, which studies the relationships between organisms and their environment.

Ecologists investigate the impacts of invasive species on the ecosystem and devise strategies to control their spread and minimize their effects.

In this case, scientists will need to examine the size of the quagga mussel population, their distribution, and their ecological interactions with native species.

They will also need to recommend measures to prevent further introduction of quagga mussels and to manage their population growth, such as using chemical treatments or biological controls.

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Q1) Based on the information in the unit, explain why the number of predators is declining in the
Appalachian region. What effects might this have on the forest?


Q2) Why is it important that diverse areas of the forest are monitored when counting trees? What
could happen if this wasn't done?

Q3) The unit discusses measuring growth in forests. Where else might it be important to measure
the growth of trees? Why?

Q4) If trees in a timber cruise were found to be of many different species, would that mean that the
forest could be used for timber? Explain your answer.

Q5) Why do you think that biodiversity is good for ecosystems?

Answers

Answer:

Q1) The number of predators is declining in the Appalachian region due to factors such as habitat loss, hunting, and disease. This can have significant effects on the forest ecosystem, as the absence of predators can lead to an increase in the populations of their prey. This can, in turn, cause a decrease in the populations of other species that rely on those prey for food, and can also result in an overgrazing of certain plant species, leading to a disruption in the balance of the forest ecosystem.

Q2) It is important to monitor diverse areas of the forest when counting trees because different areas may have different types of trees or different densities of trees. Focusing on only one type of area or tree species could result in an inaccurate count and misrepresentation of the forest's overall health. If diverse areas of the forest are not monitored, it could lead to an incomplete understanding of the forest's ecosystem, and potentially lead to poor management decisions.

Q3) It is important to measure the growth of trees in other areas such as urban environments, parks, and nature reserves. This is because trees provide essential benefits such as shade, air purification, and carbon sequestration, and monitoring their growth can help determine their health and inform management decisions. In urban environments, for example, trees can help mitigate the effects of heat islands and improve air quality.

Q4) The presence of multiple species in a timber cruise does not necessarily mean that the forest can be used for timber. The species of trees, their size, and their density all play a role in determining the economic viability of a timber harvest. Additionally, other factors such as the terrain and accessibility of the forest also need to be considered.

Q5) Biodiversity is important for ecosystems because it provides stability and resilience. A diverse ecosystem can better withstand environmental stressors such as climate change, disease, and natural disasters, as different species may have different adaptations and roles within the ecosystem. Biodiversity can also provide important ecosystem services such as pollination, nutrient cycling, and pest control. Furthermore, a diverse ecosystem can be more aesthetically pleasing and provide recreational opportunities for people.

How much time is needed for a 15,000 W engine to do 1,800,000 J of work ? (Power: P = W/t)

Answers

Answers:

 T =120s

Explanation:

P=15,000

W=1,800,000 J

P=W/T

T=W/P

T=1,800,000 J/15,000W

  =120s

1. Convert 4.52 x 10 26 atoms of gold to moles of gold.

Answers

Answer:

7.5056365964E-24 Moles

Explanation:

who developed the unit for measuring amplitude?

(A.) Alexander Graham Bell

(B.) Thomas Edison

(C.) Nikola Tesla

(D.) Antonio Meucci

Answers

Answer: (C.) Nikola Tesla

Explanation: SOMETHING I DONT UNDERSTAND! I'm 4yrs old and my 13yrs old sis told me she was on her perio d but then I told her there was this thing called subject and predicate and how she isnt supposed to have a period at the end of her statement because it wouldnt make any sense... and ya, it didnt go well cause' she put on a tantrum.

     But the weird thing is that Google said this "Tantrums are most common between the ages of one and four, then decrease when children start school." SO HOW COME I DIDN"T HABE A TANTRUM!!..         life makes no sense

Which of the following is a BEHAVIORAL adaptation?
O Forward-facing eyes
O Long fur
O Digging:
O Sharp Claws
Help

Answers

Answer:

Forward Facing Eyes

duh how much more does it needs to be obvious

The answer is: C - Digging.

Describe way in which plants are adapted to swed dispersal by animals give an example

Answers

Some seeds feature barbs or hooks that cling to an animal's skin, fur, or feathers. Birds can carry away the sticky seeds of plants like pittosporum.

How do plants adapt to animal seed dispersal?

Seeds from plants that rely on animals for distribution are made to fit either within or outside of the animal. Burr- or hook-shaped seeds can cling to an animal's fur. Plants give seeds that are carried internally an enticing fruit pulp reward in exchange for the journey.

What kind of animal dispersal are examples?

Mangoes, guavas, breadfruit, carob, and several fig species are some examples. Aardvarks and the desert melon (Cucumis humifructus) share a symbiotic connection in South Africa, where the mammals consume the fruit for food.

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Part A
Which Of The Following Student-Drawn Cell Models Contain Two Chromosomes? Select All That Apply.

Part AWhich Of The Following Student-Drawn Cell Models Contain Two Chromosomes? Select All That Apply.

Answers

Answer:

the last one , the second to last one and the first one I am pretty sure

A, C and D are the student-Drawn Cell Models  that Contain Two Chromosomes.

Every cell in your body has DNA, which is the form in which your genetic code is stored. It creates your body's manual of operations. Each cell's nucleus contains chromosomes, which are structures that resemble threads and contain the DNA molecule.

A chromosome is referred to be a "homologous chromosome" if it has a similar genetic makeup but also includes replication-induced variations. Sister chromatids are the two halves of a certain chromosome that are joined at the centromere. Chromosomes known as "replication chromosomes" arise after the cell has undergone the process of DNA replication to prepare for cell division.

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HURRY PLEASE I HAVE BARELY ANYTIME LEFT

What is the point of meiosis?

A. Cause mutations in which the DNA content of the gene is altered
B. Creation of somatic cells for growth and repair
C. Segregation of sister chromatids
D. Increased genetic variation by crossing over and fertilization

Answers

Answer:

D. increased genetic variation by crossing over and fertilization

Does following a schedule
Appeal to you, or
Cramp you?

Answers

Following a schedule does not cramp me, rather it appeals to me.

Why schedules appeal to me

A schedule is a plan that specifies the time and duration of activities, events, or tasks that need to be accomplished. It can be in the form of a calendar, planner, or list of tasks to be done at specific times.

Several reasons make having a schedule important include:

Managing time efficiently and effectively is vital for success. One way to do this is by prioritizing tasks and allocating the right amount of time to complete them. This helps in avoiding procrastination and ensures a timely completion. Create a schedule and stick to it to make the most of your time.

By preventing individuals from taking on too many tasks simultaneously, a schedule is integral to optimizing productivity. A schedule ensures that tasks are completed promptly and efficiently.

By creating order and control, a schedule can greatly reduce feelings of stress. The stress of last-minute rushes and deadlines can be avoided with the aid of a schedule.

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During normal mitosis, a parent cell that has eight chromosomes will produce ________, containing ______ each.
A. 2 cells, 8 chromosomes.
B. 4 cells, 4 chromosomes.
C. 4 cells, 8 chromosomes.

Answers

Answer:

A. 2 cells, 8 chromosomes

Explanation:

Mitotic cell division is the division of one parent cell to create two daughter cells. It replicates its DNA so each cell has the same amount of chromosomes as the parent cell.

Which of the following is a difference between radiation and conduction

Answers

Answer:

radiation is the transfer of heat by E.M radiation through indirect contact ex. the sun is transferring heat while

conduction is the transfer of heat through direct contact ex. eggs cooking on a frying pan

Explanation:

hope this helps!

Please help I’ve been stuck on this for so long please and thanks

Please help Ive been stuck on this for so long please and thanks

Answers

2. From the details provided about the lower jaw, it can be concluded that the lower jaw belongs to a young adult female.

3. From the details provided about the femur, it can be concluded that the femur belongs to an aged individual.

What are the characteristic features of the femur?

The femur comprises a long shaft in the middle and two rounded ends. It's the traditional form that bones take in cartoons: a tube with two rounded protrusions on either end.

The femoral neck supports the femoral head, which is the most distal part of the femur.

The ligamentum teres act as an attachment point for the femoral head, which is approximately spherical but contains a medial dip known as the fovea capitis femoris.

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The interior of the phospholipid bilayer is _______ meaning it repels polar molecules, such as water

Answers

The cell membrane's inside is hydrophobic, meaning that water won't cling to it. In order to effectively separate fluid inside the cell from fluid outside the cell, phospholipids form a two-layer cell membrane.

Why do polar molecules repelled by the phospholipid bilayer?

Large hydrophilic polar or ionic molecules find it difficult to pass through the phospholipid bilayer. The cell membrane prevents the passage of any size charged atoms or molecules.

What component of the phospholipid bilayer is water-repellent?

While the tails (the lipid component) are non-polar, the heads (the phospho part) are polar. The tails, which face the inside of the cell membrane, are "hydrophobic" (fearful of water), whereas the heads, which make up the exterior and inner linings, are "hydrophilic" (lovers of water).

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Is my drawing good?pls be honest Connor drives at 50 km/h during 3 hours.Laura drives the same distance as Connor, but during 2 hours.Work out Laura's average speed. what are the strengths and weaknesses of the secretary of the interior? True or false. The images of Imagist poetry are symbols to reveal theme to readers. Figure 2 was constructed using figure 1.On a coordinate plane, 2 parallelograms are shown. Parallelogram 1 is in quadrant 1 and sits on the x-axis with a point at (0, 0). Parallelogram 2 is in quadrant 4 and sits on the y-axis with a point at (0, 0). Parallelogram 1 is rotated 270 degrees counter-clockwise to form parallelogram 2.For the transformation to be defined as a rotation, which statements must be true? Select three options. pls help!!!!What is the Economy of East Africa or West Africa miguel is 17. all else being equal, miguel's level of risk-taking is most likely . his level of self-control is most likely . Drag each label to the correct category.Sort the factors based on whether they were strengths or weaknesses of the Roman Empire. use a table of ka or kb values to determine whether k c for the following reaction is less than, equal to or greater than 1 nh4 hco3- h2co3 nh3 In PQR, PQ = 17.4 m and PR = 7.6 m. K lies on QR such that PKQ = 137 . find (i) QPR (ii) the length of QKusing the trigonometric ratios number of molecules in 4HCl Ok ok I know this isnt about schoolwork but can ppl please comment how to ask a boy out? Fill in the blanks below to complete the hypothesis for this lab. It should answer the lab question, What is the effect of molecule size on a molecules ability to diffuse across a semipermeable membrane?If molecules are small enough, then . . .because . . . ok so if someone just wants the points tell don't answer this question comment and ill post a mother random one for 50 points just don't waste the answers please I really need help ill give brainliest but comment if u just want the points don't submit an answer What is m ZDEF?Enter your answer in the box. Calculate the volume of a 0.423 M solution of KOH solution needed to completely titrate12.85 mL of an .540 M H2SO4 solution to its equivalence point. Please the the equationbelow.H2SO4 (aq) + 2 KOH (aq) K2SO4 (aq) + 2 H2O (6) Describe the Sled Memory (Not the Broken leg/Sled crashes memory) WITH KEY DETAILS. After Jonas receives this memory, how does he feel? (I can't stress this enough, please, PLEASE, have AT LEAST 5-7 sentences! THANK YOU.) What did the two world wars change? Select ALL that apply -economic ruin for many nations -nationalism declined -oppression was on the rise -nation after nation was able to gain its freedom -two superpowers came into being Four times a number is equal to the number increased by 12. Find the number the fact that people often come to love the things that they had to sacrifice much to obtain illustrates the effects of _______