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
attashe74 [19]
4 years ago
6

Why is melting an ice cube considered a physical change

Biology
1 answer:
blsea [12.9K]4 years ago
4 0

Explanation:

As an ice cube melts, its shape changes as it develops the skill to flow. However, its composition does not change. Melting is a representation of a physical change

You might be interested in
Which type of chlorophyll is rare in xanthophyceae and is only determine its two genera
olga55 [171]
The answer is Chlorophyll
3 0
2 years ago
In a population of gerbils ,long hair is completely dominant over short hair .if 18percent of the population has short hair , ca
oee [108]

Answer: 49%

Explanation:

* long hair = P

* shirt hair = q using the Hardy-Weinberg equation for genotypic frequencies

* p^2 + 2pq + q^2 =1

*first use the equation to solve for the known value 18% hh

.18 = q^2

Square root .18 = q

So q = .42

* plug this allelic frequency in to p+q = 1

Which will give you the frequency of dominant alleles

1 - .45 = p So P = .58

Then just plug the P and q values found into the portion of the equation for heterozygous offspring.

2(.58)(.42)

Which is .49 or 49%

The entire population should be 33% homozygous dominant 49% heterozygous and 18% homozygous recessive.

5 0
3 years ago
Read 2 more answers
Which prediction is most likely to happen due to solar energetic particles during a solar
alisha [4.7K]
Well I need some points so
4 0
3 years ago
What is the relationship between "seeing" with the eye and "perciving" with the brain
NISA [10]

Answer:

Our eyes can trick our brain in some manner. When the eye see an image, our brain assumes that the image being seen is a image which had been seen in the past. Therefore, our brain is tricked into believing that the image which is being seen is of something which has been visualized before whereas in actual it is a new image. Hence, this is the relationship between seeing of the eyes and perceiving of the brain.

3 0
3 years ago
Different ratios occur in crosses with single gene pairs or two gene pairs. What types of ratios are likely to occur in crosses
likoan [24]

Answer:

Genotype ratio: 1, 1:1, 1:2:1

Phenotype ratio: 1, 3:1

Explanation:

Single gene pair cross is also known as monohybrid cross. This means that only one gene usually with two alleles is observed and it express one trait.

For example, if we name the gene for a certain trait with A, the possible genotypes are AA (dominant homozygous), aa (recessive homozygous) and Aa (heterozygous). Possible crosses are:

P: AA  x  AA

F1 : all of them are AA

The same is with aa x aa (all of the offspring are with aa genotype)

P: AA  x  Aa

F1: AA Aa AA Aa  (genotype ratio 1:1) (phenotype ratio 3:1)

The same genotype ratio is  in aa x Aa (offspring will have aa Aa aa Aa-(genotype ratio 1:1) (phenotype ratio 1:1)

P: Aa x Aa

F1: AA Aa Aa aa (genotype ratio 1:2:1) (phenotype ratio 3:1)

P: AA x aa

F1: Aa Aa Aa Aa (1)

5 0
3 years ago
Other questions:
  • There are three types of fibers in the cytoskeleton. Which of these is NOT a cytoskeleton fiber? A) microtubules B) macrotubules
    15·2 answers
  • An area is described as having mild temperatures in the summer and being cold and rainy in the winter.On a day in may,the area e
    15·1 answer
  • What is the major risk if automotive electrical parts are used on a boat?
    13·1 answer
  • Drinking non-potable water does not carry significant health risks
    7·2 answers
  • Which structures are in the cytoplasm? Check all that apply.
    10·2 answers
  • Which organelle is responsible for actually making proteins?
    10·1 answer
  • Deforestation kills many organisms that produce oxygen. What oxygen-producing organisms would remain if all the forests were des
    12·2 answers
  • After removing a cutting from a parent plant, farmers usually:
    11·1 answer
  • Monosaccharides are to carbohydrates as amino acids are to
    15·2 answers
  • Approximately 70% of Earth's surface is covered with water. What percentage of this water is freshwater?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!