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
Fittoniya [83]
3 years ago
11

A(n) _______ is a pure substance that can't be broken down into simpler substances by chemical or physical means.

Biology
1 answer:
Rasek [7]3 years ago
6 0
You don't have the options to choose from but I believe from past experience the answer to the question is element. 
You might be interested in
An individual that is heterozygous for two linked genes has the genotype a b/a b, which means that the aand b alleles are in one
mylen [45]
The recombinat types are AB, and ab.
Genetic recombination involves the production of offspring with combinations of traits that differ from those found in either parent. In our case the parents are Ab and aB, which is not the same as the offsprings (AB,ab). During meiosis in eukaryotes, recombination involves the pairing of the homologous chromosomes a process. 
5 0
2 years ago
How are the lydias ice and lyric cycles different
Serjik [45]

Answer:

The lytic cycle involves the reproduction of viruses using a host cell to manufacture more viruses; the viruses then burst out of the cell. The lysogenic cycle involves the incorporation of the viral genome into the host cell genome, infecting it from within.

Explanation:

4 0
2 years ago
Why can't the enzyme maltase, which breaks down starch into the sugar maltose, not also be used to break down the starch sucrose
Tamiku [17]

Sucrose is a processed sugar so due to chemical composition it cant break down and also enzymes break down natural sugars not processed.

7 0
3 years ago
Random orientation of homologous pairs of chromosomes during meiosis I results in alternative arrangements that contribute to ge
iogann1982 [59]

Random orientation of homologous pairs of chromosomes during meiosis I results in alternative arrangements that contribute to genetic variation in offspring. This is called "independent assortment".

<u>Explanation:</u>

The sets of homologous chromosomes, also recognized as bivalents or tetrads, align along the metaphase plate in a random order in metaphase I of meiosis I. Another way for cells to incorporate genetic variation is by spontaneous orientation. Mendel's independent assortment law stipulates that, independently of one another, the alleles of two or more different genes are sorted into gamets.

In other terms, for one gene, the allele that a gamete receives does not affect the allele that is obtained for another.Genetic recombination (by random segregation) and crossing over during meiosis creates daughter cells each containing different combinations of maternally and paternally coded genes.

4 0
3 years ago
Why are gram positive bacteria and cyanobacteria classified together?
lutik1710 [3]
Here is the answer. The reason why gram positive bacteria and cyanobacteria are classified together because both are considered as prokaryotes and both are aquatic and photosynthetic, meaning they both <span>live in water and make their own food. Hope this answers your question.</span>
7 0
3 years ago
Other questions:
  • PLEASE HELP 50 POINTS!!!!!!
    5·2 answers
  • All of the following auxiliary labels should be placed on the bottles of oxodone except:
    8·1 answer
  • Could a person with type o blood have a child with type ab blood? explain why or why not.
    9·1 answer
  • Which animal lives in the hydrosphere and lithosphere? eagle duck shark lizard
    15·1 answer
  • Which of the following offspring genotypes could result from fertilization of a normal haploid sperm with an oocyte that had und
    11·1 answer
  • Which structures are considered analogous?
    12·1 answer
  • Easy 5th grade science please look at photo and answer!! giving brainliest!
    15·1 answer
  • Why are remote islands tested for carbon dioxide.
    14·1 answer
  • How does the liver help in maintaining homeostasis
    7·1 answer
  • What do a sunflower and a lion living 50 years ago have in common
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!