1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
iren [92.7K]
3 years ago
13

During chemistry class your teacher challenged you to dissolve four salts as quickly as possible in a specific volume of water.

Each group had to pick a variable to test, a variable that would speed up the dissolving process. Each group had to design an experiment using the steps of the scientific method. The teacher began the experiment with the research question: How can you speed up the dissolution of salt in water. Your group stated: If the water temperature increases, the dissolving time of the four salts will decrease. Your statement can BEST be described as your group's A) hypothesis. B) law. C) theory. D) variable.
Biology
2 answers:
BlackZzzverrR [31]3 years ago
5 0
Your answer would be A. :)
oee [108]3 years ago
5 0

Answer: Option (A) is the correct answer.

Explanation:

A hypothesis is defined as the proposed explanation or assumption that will give an idea what could be the result.

Therefore, when teacher asked what could be done to speed up the reaction then students are actually forming a hypothesis that by increasing the temperature the result be dissolution of all the four salts.

Thus, we can conclude that the statement can BEST be described as your group's hypothesis.

You might be interested in
3. In one population, 18 individuals have long hair and 182 individuals have short hair. It is known thatmating has been random
pishuonlain [190]

Answer: p (short hair) = 0.91 and q (long hair) = 0.09

Explanation: In the population, short hair is a feature of domnant allele, because there are more short haired individuals than with long hair. In genetics, p is the frequency for dominant allele and q is for recessive allele.

For this question, short hair is allele L and long hair is allele l

So, the frequency of short hair is p and of long hair is q.

To calculate the frequencies:

Frequency of allele L = (number of copies of allele L in population) / (total number of L/l gene copies in population)

p = 182/200 = 0.91

The same formula goes for the recessive allele, so:

q = 18/200 = 0.09

Thus, the frequencies of hair allele are 0.91 and 0.09 for short and long, respectively.

8 0
3 years ago
The process of importing free dna from the environment is called ______________. the type of dna uptake that is dependent on vir
timofeeve [1]
The process of importing free dna from the environment is called _transformation_.

The type of dna uptake that is dependent on viruses is called _transduction_.

The type of dna uptake that is dependent on transferable plasmids is called _cconjugation_.
4 0
3 years ago
List five introduced species that present a serious threat to their new communities. explain the damage done by each introduced
Delicious77 [7]
Cat (Australia); lots of cats became feral and they reproduce very fast. They became the apex predator and the native species have no defense system for them, so the cats brought tens of species on the verge of extinction (mainly placental mammals).
Fox (Australia); became an apex predator in the lack of competition, and damages the populations of native small placental mammals. 
Hair (Australia); reproduces much quicker than the native species of mammals, increased significantly in numbers, and out competes the native species for the food sources.
African bee (the Americas); much more aggressive and stronger than the native bees and systematically kills their populations.
Grey squirrel (Britain); reproduces quicker than the red squirrel, is bigger, and out competes for food, brought it on the verge of extinction.
4 0
3 years ago
Read 2 more answers
Which is biotic? water temperature beeswax snow
Luden [163]
Bees wax is biotic. 

Biotic means something that is related to or resulted from living things. Bio means life. Bees wax are produced by honey bees. It comes from a living thing, thus, it is biotic.

Water, temperature, and snow are all abiotic. Abiotic means "no life" or nonliving. They are not derived from any living thing. 



8 0
3 years ago
Read 2 more answers
Is an oak tree leaf an autotroph?
yarga [219]

Answer:

no

Explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following statements about PCR is/are FALSE? There may be more than one correct answer.
    10·1 answer
  • A patient has been taking fluoxetine (prozac) for 11 months and reports feeling cured of depression. the nurse learns that the p
    5·1 answer
  • There are 14 boys and 7 girls in science class. simplify the ratio
    12·1 answer
  • 2. What does a cell need in order to live?
    13·2 answers
  • What do all cells need in order to perform cellular respiration?
    8·2 answers
  • *Please help, I'm timed*
    5·2 answers
  • What inherent characteristics of populations did both Darwin and Wallace propose were need for natural selection to lead to adap
    9·2 answers
  • What is the structure and functions of mammalian cells compartments
    7·1 answer
  • All adaptations are physical. A. True B. False
    7·2 answers
  • In addition to carcinoma of the prostate, elevated prostate-specific antigen (PSA) can occur due to:
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!