Answer:
Jay's speed-7.333 yd/s
Zeke's speed- 7.0 yd/s
Zeke's time-31.43 seconds
Step-by-step explanation:
-Speed is defined mathematically as distance over time.
-Given the distance as 220 yds and Jay's time as 30sec, her speed is:
#Given that Jay wins the race by 10yds, it means that Zeke was at 210 yds when Jay finished:
-Find Jay's time at d=210 yds:
#Zeke's speed for the race can now be calculated as:
#Time it takes for Zeke to finish:
Hence, it takes Zeke 31.43 seconds to complete the dash.
three examples of ways in which biology can help inform everyday decisions
Transport of food in higher plants takes place through?
A.Tracheids
B.Companion cells
C.Sieve elements
D.Vessels
Answer:
the correct answer is phloem it is not there
Answer:
In the vessels because pholem and xylem tissues are vessels
Q: Predict the final masses of the following dialysis tubes.
Dialysis tube is semi permeable membrane which is made of cellulose acetate. This tube is used during the dialysis process.
The initial mass and final mass of dialysis tube will differ.
Initial Mass Final Mass Difference is mass
0 M Sucrose 29.13 g 29.93 g 0.8 g
0.2 M Sucrose 28.37 g 29.97 g 1.6 g
0.4 M Sucrose 30.84 g 33.04 g 2.2 g
0.6 M Sucrose 27.56 g 35.36 g 7.8 g
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In a randomized trial, scientist try to make sure that there is only one difference between the two groups. What do we call all the things that are the SAME Between the two groups?
A. Predictions
B. Controls
C. Constant
D. Variables
Answer:
constant
Explanation:
the word 'Constant' means 'again' or 'same'
How is science important in our daily lives?
Answer:
by it helps to make our living comfortable. it help to know the accurate weight of the quantity. it helps to know about the earth, solar system, structures of earth, etc.
Milk of magnesia, which is magnesium hydroxide, is used to cure stomach acidity. What is the mode of action of this drug?
A.
Milk of magnesia is an acid that replaces the hydrochloric acid present in the stomach, thus relieving acidity.
B.
Milk of magnesia is a base that neutralizes the excess acid present in the stomach, thus relieving acidity.
C.
Milk of magnesia is a salt that neutralizes the excess acid present in the stomach, thus relieving acidity.
Answer: B) Milk of magnesia is a base that neutralizes the excess acid present in the stomach, thus relieving acidity.
Explanation:
Milk of magnesia, which is magnesium hydroxide, is used to cure stomach acidity. The mode of action of this drug is that milk of magnesia is a base that neutralizes the excess acid present in the stomach, thus relieving acidity. The answer is letter B.
Why was Mendel's work not accepted at the time?
Write a short comment on your:
Strength :
BTS is my strength my love my everything
Why aren’t organisms on the sea floor crushed by water pressure and how much pressure inside them is pushing out at the ocean?
(argumanta la importancia del desarrollo cientifico en el manejo del agua)
ayuda porfa :c
Answer:
La gestión del agua es importante ya que ayuda a determinar las expectativas futuras de riego. La gestión del agua es la gestión de los recursos hídricos bajo políticas y regulaciones establecidas. El agua, que alguna vez fue un recurso natural abundante, se está convirtiendo en un bien más valioso debido a las sequías y el uso excesivo.
Explanation:
La gestión de los recursos hídricos es un tema muy importante desde varios ángulos, como el desarrollo de masas de agua para el futuro, la protección de las masas de agua disponibles de la contaminación y la sobreexplotación y la prevención de disputas. Una cuestión primordial es el agua: su disponibilidad, calidad y gestión.
Aquí hermano te ayudé ^-^ ;) :)
In which of these forms does acid precipitation reach the surfaces of Earth?
Pls help me with this one ASAP (I took a picture of the questions)
What is the function of a chloroplast? A. Gamete production B. Cellular respiration C. Fermentation D. Photosynthesis
Answer:
So i had these notes from a couple of days ago and I’d like to help u out
Explanation:
Photosynthesis
Carbon dioxide enters through the leaf which contains small pours called stomata. The carbon dioxide then enters the cells of the leaf.
Inside the cell carbon dioxide diffuses into the chloroplasts. Where photosynthesis takes place
Chloroplasts use energy from sunlight to transform carbon dioxide and water into sugar and oxygen.
The light reactions
Inside chloroplasts there are these flat membranous sacs called thylakoids.
Thylakoids are the place were light energy is converted into chemical energy in the first phase of photosynthesis the light reactions.
Photosystems
Photosystems are large complexes of proteins and chlorophyll (capture light energy)
Electron transport chain
This chain connects the two photosystems.
Electron carrier
These shuttle (transport that is mainly between 2 things going back and forth) electrons from one photosystem to another
Photosystem
One of the photosystems are used to absorb energy which then excites the electrons that then enter the electron transport chain. These electrons are replaced with electrons stripped from water creating oxygen as a byproduct.
The electrons on the chain
The energised electrons are flowing down the electron transport chain releasing energy that is used to pump hydrogen ions
Hydrogen ions
An atom or molecule that has a net electrical charge due to the loss of one loss or one gained electron.
The electrons on the chain
As the hydrogen ions get pumped out they are then absorbed into the thylakoids
In the photosystem on the right light energy excites electrons and this time the electrons are captured by an electron carrier molecule also known as NADPH
The high concentration of hydrogen ions inside the thylakoid powers ATP synthase producing ATPS the light reactions in the thylakoid have produced two products, ATP and NADPH.
Those two products then power the production of sugar in the Calvin cycle
THE CALVIN CYCLE (C3 Cycle)
The Calvin cycle takes place outside the thylakoids in the stroma (the thick fluid of the chloroplast).
At the beginning of the cycle
carbon dioxide molecules combine with molecules called rubp the resulting molecules go through a series of reactions powered by ATP and NADPH from the light reactions sugar molecules known as g3ps are produced.
G3ps
Most of the g3ps molecules are rearranged back into rubp’s that begin the calving cycle again.
The important product
Then some of the left over g3ps is the remaining g3p sugar, some g3ps are used to build glucose which can then combine into starch or even cellulose
Bits of left over g3ps are also able to break down by cellular respiration, which uses oxygen in the plants own mitochondria, this generates ATPS that can power other work of the plant.
The left overs
Excess oxygen diffuses out of the leaf through the pores while more carbon dioxide goes into the leaf pores.
Your welcome
The blood pressure of a person is 140/100 mm of Hg, what does it mean?
Answer: When is blood pressure considered high? Normal blood pressure is under 120/80. From 120/80 to 139/89 is pre-hypertension. The threshold for high blood pressure is 140/90, while anything over 180/110 is hypertensive crisis – an emergency.
Explanation:
Which of the following are measurable? (Select all that apply)
✓ How often a plant is watered
✓ How much sunlight a plant receives
Seeing the pretty leaves on a plant
The actual number of new leaves on a plant
Answer:
a
Explanation:
well of you use a cup to give a plant water you can measure how much it drinks
The measurable factors are A) How often a plant is watered, B) How much sunlight a plant receives, D) The actual number of new leaves on a plant.
Options (A) (B) & (D) are correct.
Measurable factors are those that can be quantified or expressed numerically. A) The frequency of watering can be counted and tracked over time. B) Sunlight can be measured in terms of intensity, duration, or light levels. C) "Seeing pretty leaves" is subjective and not quantifiable.
D) The actual number of new leaves is a concrete count, making it measurable. When studying or managing plants, it's essential to focus on quantifiable aspects, like watering frequency, sunlight exposure, and counts of observable changes, for accurate analysis and decision-making.
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The complete question is:
Which of the following are measurable? (Select all that apply)
A) How often a plant is watered
B) How much sunlight a plant receives
C) Seeing the pretty leaves on a plant
D) The actual number of new leaves on a plant
Which animal is often used to model human body systems?
pig
rabbit
cow
sheep
Answer:
Pig
Explanation:
Rabbit is often used to model human body systems
Recent advancements in mammalian and rabbit genomic studies have reaffirmed the rabbit as a prototype genetic system. They have genomes that are almost identical in size and are thought to have split 80 million years ago from a common origin.
Rabbits have counterparts to almost all human genes.
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Conoces ecosistemas con sucesión y secundaria en el país?
Answer:
Image result for Conoces ecosistemas con sucesión y secundaria en el país?
En la sucesión primaria la roca recién formada o recién expuesta es colonizada por primera vez por seres vivos. En la sucesión secundaria, un área anteriormente ocupada por seres vivos se ve alterada o afectada, y luego se vuelve a colonizar después de la perturbación.
Explanation:
Image result
La sucesión primaria es aquella que se desarrolla en un biotipo virgen, es decir, una zona carente de una comunidad preexistente, como ocurre en las dunas, nuevas islas volcánicas, retroceso de glaciares,
Match it to the right one
Underground mining removes minerals from deep in the earth. Miners use blasting to separate the "waste" from the mineral deposit. Which statement best describes
an environmental consequence of this process?
O Underground mining activities often cause noise pollution
O Acid mine drainage kills plants and animals around the mine.
O High salinity of wastewater reduces soil fertility and vegetation
O Soil is removed by the force and pressure of the drilling process.
Answer:
Acid mine drainage kills plants and animals
Explanation:
took the quiz :)
The correct answer as to the environmental consequence of using blasting to separate wastes from mineral deposit is noise pollution. The statement that best describe the process, therefore, would be that underground mining activities often cause noise pollution.
Blasting simply means to break something apart or to blow up something. When blasting is associated with mining, it usually involves the use of explosives. These explosives make loud noise when they are used in blasting.
Hence, blasting can be said to be a source of noise pollution to those staying close to the mining area.
More about blasting can be found here: https://brainly.com/question/15084946
Explain how increasing the temperature increases the rate of the reaction
Explanation:
The more the temp rises the more energy it generates. In a reaction there are molecules in which they bounce around and collide in order to form the reaction. With more energy being introduced the molecules will speed up and collide more often than what the speed was before which directly relates to why the rate of a reaction is increasing.
difference between observation and inference
Answer: You can consult:
An observation uses your five senses, while an inference is a conclusion we draw based on our observations. It might be helpful to have some examples. Observations can be made only with the five senses.
Explanation:
I'm not sure but hope it helps.
how does microbes useful for treating wastewater sewage
Answer:
Microbes useful for treating wastewater sewage
to reduce the volume of sludge and produce methane gas from it.
Hope answer help you
When you make a decision to scratch your nose or pick up your pencil from the desk, which part of your nervous system makes that happen?
o Autonomic
Peripheral
O Sympathetic
O Parasympathetic
What is the function of of pseudopod?
I need a Hashtag relating to the cell wall
Help for brainlest plz help
help. now.
Mark all that apply. The action and reaction forces referred to in Newton's third law:
Question 15 options:
are equal in magnitude
act upon the same object
are opposite in direction
act upon different objects
What is the answer to the question 3
Answer:
D. the natural resources available in an ecosystem.
Explanation:
Carrying capacity can be defined as a species' average population size in a particular habitat. The species population size is limited by environmental factors like adequate food, shelter, water, and mates. If these needs are not met, the population will decrease until the resource rebounds.
Please help!
How is the growth of the roots affected by the auxin concentration at which stems grow the most?
Explanation:
Auxins change the rates of elongation in plant cells and control growth of stems and roots. Stems and roots respond differently to high concentrations of auxins: cells in stems grow more. cells in roots grow less
4.010
Mutations can be caused by
a. radiation
b. chemicals
C. both a and b
Answer:
Mutations can be caused by radiation
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