# A student wants to find out if aspirin helps keep cut flowers fresh. She wants to set up an experiment to test this, but first, she must set up the hypothesis. Which statement is the best hypothesis to test the question she is asking? If an aspirin is added, then it will keep the flowers fresh. If an aspirin is added to the water, then it will keep the flowers fresh. If an aspirin is added to the water in a vase of daffodils, then the flowers’ wilting time will not change because aspirin has no effect on the wilting time of daffodils. If an aspirin is added to the water in a vase of daffodils, then the flowers will remain fresh longer because aspirin lengthens freshness.

Answer: C. If an is added to the water in a vase of daffodils, then the flowers' wilting time will not change because aspirin has no effect on the wilting time of daffodils.

c!!!!!!!!!

Explanation:

edge 2020

## Related Questions

Osmosis is how excess salts that accumulate in cells are transferred to the blood stream so they can be removed from the body. explain how this process works in terms of tonicity.

Osmosis is the net movement of water across a semi-permeable membrane from an area of lower gradient concentration to an area of higher gradient concentration. On the other hand, tonicity is the ability of an extracellular fluid to make water move into or out of a cell through osmosis. A solution's tonicity is related to its osmolarity or the total concentration of the solutes in a solution.

When solutions of varying osmolarities are separated through a membrane that is permeable to water but not to solute, water from the side with lower osmolarity will move to the area with higher osmolarity.
Tonicity is the concentration of a solution compared to another, with regards to the number of solutes in these solutions. Too many solutes in a cell may cause them to be hypertonic hence absorb water too much water and lyse. Therefore, these solutes are excreted to the blood-stream through active transport and facilitated diffusion. These solutes are then excreted by the kidneys. If they are not excreted, the osmotic pressure (due to the inflow of water to the blood stream by osmosis) may cause high blood volumes being pumped by the heart hence high blood pressure

The upward force exerted on an object falling through air is?

It is Air resistance.

Since sperm viability is decreased in the acidic vaginal cavity, fluid from the seminal vesicles can help the sperm survive in the vagina by providing a(n) ____ environment

Alkaline (basic) environment. Alkalis (bases) contain a pH of greater than 7.00, whereas acids have a pH less than 7.00

How do bones provide a structure for muscles to move?

Think of muscles kind of like a slingshot. If there wasn't a sturdy enough frame to withstand the force of the elastic band, then we wouldn't be able to shoot anything.

Without a sturdy frame for our muscles to grab hold of, there wouldn't be enough tension for our muscles to move. Without bones we'd be an awkward pile of skin, muscle & bodily fluids.

Hope that helps!

Gametes (sex cells) have ______ A. Two alleles for each gene (Homologous Chromosomes).

B. Twice the number of chromosomes found in body cells.

C. Two sets of chromosomes.

D. One allele for each gene (Haploid Chromosomes).

D. One allele for each gene (Haploid Chromosomes).

Which of the following information could be included in the description of a grasshopper’s niche, but not in a description of its habitat? Question 7 options:

continent where it lives

locations where it shelters

plant species it eats

temperatures it experiences

Temperatures it experiences could be included in the description of a grasshopper’s niche, but not in a description of its habitat.

Explanation:

• The habitat is the organism's place where it lives and niche is physical and biological condition of spices that exist.
• Grasshopper is a herbivorous insect that can "leap 20 times" of its "own body" and it jump almost 40 yards.
• Female grasshopper is larger than the male and it can be found almost every where in the world except the coldest region.
• It is active in day time and it feed during night time

A plant with dark red flowers is crossed with a plant with white flowers. all of the offspring have dark red flowers with white spots. the alleles got flower color in this plant are both dominant
both recessive
codominant
incompletely dominant

Incompletely dominant

What do the colors indicate about the change in average temperature over time from 1884 to 2012

This is missing a chart i think
comment the chart and i'll try to answer

What is the oldest form of genetic engineering? Selective breeding hybridization cloning recombinant DNA

The correct answer is option Selective breeding.

The selective breeding is a technique, in which two different individuals having a specific desired phenotype is present. Both the individuals have different desired phenotype. They are crossed together, so that a progeny having both type of phenotype or trait is obtained.

Hybridization, cloning and recombinant DNA technology emerged years after the introduction of selective breeding. These are very new tools used in DNA technology, whereas, selective breeding was from ancient times.