Sasha could run one mile in 10 minutes last year. She can run a mile in 8 minutes this year. By what percent did her timing improve?

Answers

Answer 1

Answer:

20% correct me if i am wrong

Explanation:

Answer 2
20% if I’m wrong let me know to

Related Questions

which of the following is water habitat??
a ocean
b river
c lake
d pound​

Answers

Answer:

The answer is a(ocean)

A person develops an elevated body temperature from a bacterial infection the fever is response from the body to help

Answers

Answer:

it helps to heal and maintain

Explanation:

Which of the following describes a response controlled by the endocrine system?

A. Dodging a moving car

B. Release of melatonin to regulate sleep cycle

C. Pulling your hand off a hot stove

Answers

Answer:

B. Release of melatonin to regulate sleep cycle

Explanation:

w
hollowing statements
false
Tue
false
Dre offrog TO
to completed with in 12 weeks​

Answers

Answer:

i think this question is incomplete

7. On Galveston Island, an island 90 minutes away from Houston, ocean waves wash up onto the shore, typically picking up sand and depositing it further down the shoreline. Without human intervention, what would happen to the island?

Answers

Explanation:

they deleted the other one we were talking on wanna talk on this one now?!

Which of the following is NOT considered a greenhouse gas?
Select one:
A. Carbon Dioxide
B. Water Vapor
C. Nitrogen
D. Methane

Answers

Answer:

Water vapor is not a green house gas

Answer:

c.. nitrogen

Explanation:

Scientists studying the Delta water notice that levels of both chlorophyll and sediment in the water rise and fall on a regular cycle. Which of these hypotheses are consistent with their data? Select all that apply.
A.
Phytoplankton populations increase during warmer, summer months.
B.
Phytoplankton populations decrease as chlorophyll in the water increases.
C.
Sediment deposition in the Delta increases when snow melts during the summer.
D.
Phytoplankton populations increase after sediment is washed into the Delta.
E.
Sediment flow is impeded by the growth of plants and animals in the water.

Answers

Answer:

i think B can you help me plz

Explanation:

In water chlorophyll and sediment rise and fall when chlorophyll level and light increase it will increase the phytoplankton population when sediment is washed into the delta, hence option b is correct.

What is phytoplankton?

Phytoplankton, which includes single-celled algae and other creatures that resemble plants, makes up the base of the ocean's food chain.

Chlorophyll and other light-harvesting pigments are used by phytoplankton, just like plants on land, to perform photosynthesis, absorbing atmospheric carbon dioxide to create sugars for fuel.

The stratification, or layering, intensifies with increasing surface water temperature and further inhibits mixing. As a result, phytoplankton productivity and nutrient transport from deeper water to surface waters both decrease.

Therefore phytoplankton population is affected by the chlorophyll and sediments to increase photosynthesis, hence option b is correct.

Learn more about phytoplankton, here:

https://brainly.com/question/11777621

#SPJ2

How is carbon recycled through the processes of cellular respiration and photosynthesis?

A. the glucose made by plants is consumed by animals, while the carbon dioxide made by animals is taken in by plants

B. the glucose made by animals is consumed by plants, while the carbon dioxide made by plants is taken in by animals

C. the oxygen made by plants is taken in by animals

D. humans give water to their plants which is needed for photosynthesis to occur.

Answers

Answer:

a

Explanation:

Antibiotic resistance can vary within a population of bacteria. The diagram below represents the changes in a population of bacteria as a result of exposure to antibiotic over time.



Explain how this is an example of natural selection, and why we can use this as evidence that evolution occurs. ​

Answers

Answer:

The resistance that some bacterial populations develop to an antibiotic is an example of natural selection because the individuals with more resistance are those that survive, being an evidence of evolution since resistance can be inherited to the following generations.

Explanation:

The resistance to antibiotics that bacteria develop is the best example of how natural selection and evolution occurs, especially because of the fast and easy reproduction of these microorganisms.

In the example it can be seen that only the the most resistant bacterial populations to the antibiotic survive over time. Antibiotic resistance is due to mutations developed by bacteria that modify their structure and function so that they are not affected by an antimicrobial. According to natural selection, these mutations make resistance an inherited trait, and future generations will not be sensitive to the effect of the drug.

Why does natural selection occur? Only resistant individuals survive the effect of the antibiotic.

How do you explain evolution? Successive generations of bacteria have evolved, through mutations, to resist the effect of an antibiotic.

Which characteristic do vertebrates have that invertebrates lack?
A. Bilateral symmetry
B. Backbone
C. Radial symmetry
D. Exoskeleton

Answers

Answer:

B. Backbone

I hope this helps!

Answer:

Backbone

Explanation: vertebrate means "having a backbone". Invertebrate means the opposite.

list 4 methods that can be used to separate mixtures

Answers

Answer:

filtration,separating funnel, sublimation, distillation, paper chromogtraphy

Explanation:

their are the 4 methods of separating mixtures

- Why does a male bird displays his colorful feathers? (1 point)
O to increase the success rate of asexual reproduction
to increase the gestation period
to release gametes into his surroundings
O to attract a mate

Answers

Answer: To attract a Mate

Explanation: In competition, males use feather color to warn potential rivals that they occupy a piece of territory. When it's time to mate, male birds show off their plumage to attract a mate. In experiments, female birds prefer males with more fanciful feathers, or brighter colors.

During the light dependent reaction,_____ is oxidized to form oxygen. During the light independent reaction, _____
Is reduced to form glucose

Answers

Answer:

In the light-dependent reactions, which take place at the thylakoid membrane, chlorophyll absorbs energy from sunlight and then converts it into chemical energy with the use of water. The light-dependent reactions release oxygen as a byproduct as water is broken apart.

The lining of the small intestine produces lactase. Lactase breaks down large polymers in lactoseto monomers for absorption through the lining of the intestine. Those people who do not produce lactase -
O Make lactose instead of breaking it down
O Convert lactose into toxic chemicals
O Break down lactase more quickly
O Are not capable of breaking down lactose

Answers

Answer:

O Break down lactase more quickly

Explanation:

Answer:

O Break down lactase more quickly

Explanation:

what is a tissue? . ​

Answers

Answer:

a soft paper to blow your nose

Explanation:

In the image below, which region is showing an abnormally high sea level? Color-coded map showing the height of the world's ocean surfaces at a particular time. Purple areas correspond to approximately 10 centimeters below normal. Light blue areas correspond to approximately 2 centimeters below normal. Green areas correspond to approximately 3 centimeters above normal. Red areas correspond to approximately 10 centimeters above normal. In this map, area A is colored green, area B is colored red, area C is colored purple, and area D is colored light blue. Public Domain A B C D

Answers

Answer:

can you import the image

Answer:

b

Explanation:

8. Which of the following are functions of external regulators of the cell cycle?
Select two answers.
a. regulate checkpoints
b. make sure chromosomes have replicated
c. speed up or slow down the cell cycle
d. stop the cell cycle

Answers

The answer to the question is C...........

Speed ​​up or slow down the cell cycle are functions of external regulators of the cell cycle.

The regulation of cell proliferation, growth and DNA synthesis are controlled by the regulatory machinery of the cell cycle.

Cell cycle progression is activated directly by a series of heterodimers formed by cyclins and cyclin-dependent kinases (CDKs).

Cyclin D, by forming a complex with the cyclin-dependent kinases CDK4, activates the action of the kinase whose main substrate is the Rb protein.

Cyclin D are proteins that respond to external signals in cells and execute responses such as acceleration of the cell cycle.

Cyclin D1 is a protein encoded by the CCND1 gene this acts on the cell cycle by accelerating the G1 phase.

In the hypophosphorylated state, the Rb tumor suppressor protein is active and performs its function by inhibiting cell cycle progression.

Therefore, we can conclude that speed ​​up or slow down the cell cycle are functions of external regulators of the cell cycle.

Learn more here: https://brainly.com/question/22558385

How do adaptations affect organisms such as orchid plants

Answers

Answer:

Orchids are very well-adapted to life in the canopy. They have roots with a large surface area for rapid absorption of nutrients and water. Their secondary stems can hold stores of water so the plant can withstand periods of drying. ... Orchids also utilize insects to spread their pollen.

Where is the stored chemical energy in a substance?!! URGENT

Answers

Answer:

Ionic bonds

Explanation:

Answer:

in the bonds that connect the atoms

Explanation:

What is the deletion?

A. An extra-base was added in

B. A base was removed

C. The wrong bases were matched together

Answers

Deletion is a type of mutation involving the loss of genetic material. It can be small, involving a single missing DNA base pair, or large, involving a piece of a chromosome.

Help Asap which point is it ​

Answers

Answer:

1

Explanation:

If you look at the way the earth spins, the wind would head in the opposite direction, meaning the left. You could think of it when like a car drives by. The wind would be created in the opposite direction that the car is moving.

I don't know much on this, because physics isn't my strong suit, but I hope this helps.

Scientists are creating a new variety of corn. They have two requirements: the new corn must resist pests and it must contain vitamins. What method will they most likely use to create this corn?
a. insert a gene from one cell into another
b. insert a gene from one organism into another
c. remove cell walls of plant cells in culture
d. remove a gene from a plant cell​

Answers

Answer:

i think the answer is b.

Answer:

insert a gene from one organism into another

Explanation:

they must transfer a gene that is able to fight against pests, while also containing vitamins, to do this they'd need to transfer a gene with these traits from one organism into another

Plz answer You will get 26 points!

Which correctly lists the three processes that are affected by freeze and thaw cycles?


creep, landslide, and deposition

deposition, creep, and weathering

landslide, slump, and deposition

slump, weathering, and creep

Answers

Answer: B

Explanation:

Answer:

d

Explanation:

Describe how you could use the emulsion test to show the presence of oil in a sample of fish

Answers

Answer:

Explanation:

Yeah don’t sndndkond d. Deneb

At a divergent boundary of TWO OCEANIC plates, what landform is
made?
O trench
valley
O mountain
O earthquake
O volcano

Answers

Answer:

Trench and mountain

Explanation:

I think it’s trench and valley.

Where does Cellular Respiration occur within a cell?
Nucleus
Mitochondria
Ribosomes
Cytoplasm

Answers

Answer:

answer is Mitochondria

Answer:

Mitochondria

Explanation:

Im taking bio this year hope this helps

2. Which blood cell is part of the immune system? A red blood cell B platelet C white blood cell

Answers

Answer:

red blood cells

Explanation:

Answer:

Blood cells formed in the bone marrow start out as stem cells. A stem cell (or hematopoietic stem cell) is the first phase of all blood cells. As the stem cell matures, several distinct cells evolve. These include red blood cells, white blood cells, and platelets.

Explanation:

PLEASE ANSWER ASAP!!! PLEASE WILL GIVE BRAINLIEST IF RIGHT
Animals breathe in oxygen and breathe out carbon dioxide. Where does the carbon dioxide come from?

it is produced during photosynthesis

It is a product of cellular respiration

It is needed to create energy for cells

it is created when plants are consumed.

Answers

Answer:

It is a product of cellular respritation

Answer:

Explanation:

It is a Product Of cellular Respiration

I NEED HELLLLLLP!!
which horse is the common ancestor to all horse species

Answers

Answer:

Umm its a horse

Explanation:

Cell membrane part 2
Please help will give brainlist

Answers

4-c
5-b
6-a
7-d
8-c

hope this helps
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PLEASE HELP ASAP! ILL GIVE BRAINLIEST!!!?!??!!?!?How does apoptosis relate to cancer cells?A. In cancer cells, too much apoptosis occurs, resulting in malignant cells that will not undergo programmed cell deathB. In cancer cells, too little apoptosis occurs, resulting in malignant cells that will not undergo programmed cell death.C. In cancer cells, apoptosis occurs only when cells grows without proper regulation.D. In cancer cells, apoptosis occurs only when the cells receive the proper hormones. Which of the following was most likely seen by Indians as a positive effect of British rule on India?- A railroad network was built.-Inexpensive textiles were introduced to the Indian market.-Cash crops were grown.-A law allowing widows to remarry was passed.PLEASE HELP ASP Change 5x+1=4y+7 to slope intercept form ( y=mx+b) . Evaluate: 0.234 x 102.23.423,4002.34234 What does the speaker mean by the phrase Keep your patience proud in line 2? Need a quick answer please Someone pls help:) Find the equivalent expressions for (x+7) (x+1) Read the following statement. How would you categorize the type of claim? Too many Americans are plagued by health issues that could be prevented if they just didn't eat so much junk food.Claim of definition Claim of solutions or policy Claim of fact Claim of cause and effect A student rides a bicycle in a circle at a constant speed and constant radius. A force diagram for the student-bicycle system isshown in the figure above. The value for each force is shown in the figure. What is the acceleration of the student-bicycle system?m02B0.2"C) 5D25" The tires of a go-cart are 1 m in circumference. The tires revolve 15 times per second. What is the distance the go-cart travels in 40 seconds? Put your answer in meters. What arguments have been made with respect to the campaign for clean coal? During the 1920s, why did so many people heavily invest in the stock market? Select all that apply.a. Stocks were one way to make more money.b. Banks were not offering very high interest rates.c. People had a lot of extra money they didn't need.d. Profiting companies were worth investing in. What is the value of x in the question 1/2(x+6)=18 How many acres of land could a person making a claim under the homestead act of 1862 receive Which could you use to prove triangle AED is congruent to triangle CEB? please help me i have a limited amount of time 3. What is the image of (-6,5) after a reflection over the y-axis? plsdyhdjdjdjdkxkxkxkzkkzkzkzososo Which of the elements below will form an anion?B (Boron)CI (Chlorine)Ca (Calcium)Fe (Iron) Select the correct answer.Which sentence contains a misspelled word?A. If you beleive in yourself, then you are on the path to success.B. If you want to start playing the guitar, I would recommend beginning with an acoustic model.C. There is no excuse for leaving the dishes dirty after you cook a big meal.D. Our teacher told us to avoid being vague when we write.