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
I am Lyosha [343]
3 years ago
6

1. Which sign is NOT for a chemical change?

Biology
2 answers:
lisabon 2012 [21]3 years ago
6 0
Hi!
During a chemical reaction, some of the basic signs that a chemical reaction is occurring is a color change and heat / light also burning . You can clearly see these changes happening

But changes in volume is a physical property, not a chemical.

I hope this helps!
IRINA_888 [86]3 years ago
4 0
B.Change in volume Because if it Changes colors or heats up that means a chemical reaction is happening or has happend
You might be interested in
Which is allopatric and which is sympatric
Helen [10]

Answer: The correct answer is-

Allopatric-  option 2.

Sympatric - option 1.

Allopatric and sympatric are primarily the two major mechanisms for  speciation ( formation of new species from an ancestral species).

In allopatric speciation, a population splits into two different species when it is isolated by physical or geographical barrier.

On the other hand, sympatric speciation occurs wihtin the same area. A population splits into two species that is becomes reproductively isolated when a change in the chromosome number occurs.

Thus, option first corresponds to sympatric whereas option second shows allopatric speciaton.

4 0
3 years ago
Mutation is a random and non-adaptive process. This was first proven by:
s2008m [1.1K]

Answer:

Option (d).

Explanation:

Mutation may be defined as the sudden, heritable change in the nucleotide sequence of the organism. Mutation may occur due to the errors in DNA replication or may occurs due to the mutagens.

Joshua and Lederberg experiment explains that mutation is the non adaptive and random process that occur in the organism. He used the replica plating of E.coli and grows them on streptomycin drug. The bacteria was grown on the the primary plate and they are transferred to the secondary plate with streptomycin drug in the growth environment. The resistant strain of bacteria grows in the streptomycin environment.The pattern of bacteria growth on the plate explained that mutation occurs randomly and it is a non adaptive process.

Thus, the correct answer is option (d).

4 0
3 years ago
In the Linnaean classification system, what is the largest division that a group of organisms can belong to?
defon
Kingdom is the largest division that a group of organisms can belong to, for example “animal” or “plant” is a kingdom. In order: kingdom, class, genus, species.
Example of:
Class- Mammals would be a class of the kingdom “animal”
Genus- Homo would be a genus of “mammal”
Species- Homo Sapiens
4 0
3 years ago
Which process is apart of the water cycle?
maxonik [38]

Answer and Explanation:

There are various processes that are part of the water cycle:

- Precipitation: any kind of product that falls from the clouds

- Condensation: when a gas turns into a liquid

- Evaporation: when a liquid turns into a gas

- Transpiration: the evaporation of water from plants' leaves

- Runoff: the water that drains down from a source

Hope this helps!

6 0
3 years ago
Analyze the result of a cross between two organisms that are both heterozygous for two different genes (AaBb) use a Punnett squa
krok68 [10]
(1) All the genotypes are as follows: AABB, AaBB, AABb, AaBb, aaBB, aaBb, AAbb, Aabb, aabb.

(2) Assuming that Aa is dominant and Bb is recessive, there will be 9 phenotypes with both A and B allele dominant (i.e. AaBb, AABb); there will be 3 phenotypes with just the A allele dominant (i.e. Aabb, AAbb); there will be 3 phenotypes with just the B allele dominant (i.e. aaBb, aaBB); and there will be 1 phenotype with both alleles recessive (i.e. aabb). The phenotypic ratio in this case is 9:3:3:1.

(3) The probability of producing an offspring with the aabb genotype is 1/16 or 6%.

4 0
3 years ago
Other questions:
  • Which of the following is carbon bonded
    12·1 answer
  • Which of these statements is true concerning the usda animal welfare act?
    10·1 answer
  • When an individual receives an organ transplant, explain why they receive special drugs and WHY these drugs often cause the pati
    15·1 answer
  • You find a rock with fossils in it.is this rock more likely to be a sedimentary rock than an igneous rock?explain
    6·2 answers
  • Name three resources for which organisms might compete
    13·1 answer
  • What would happen to the rate of a reaction if the concentration of substrate was increased after the point of saturation? The r
    11·2 answers
  • Summarize how the actions of the heartbeat make their first and second sounds.
    13·1 answer
  • The Appalachian Mountains were formed about 500-400 million years ago. What has caused them to change so much over time
    11·1 answer
  • The cooler air over the ocean moves toward the beach during the day to replace the warm, rising air over the land
    12·1 answer
  • Based on the excerpt, which statement best summarizes the author’s beliefs about the disappearing species? the loss of plant spe
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!