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
Paul [167]
3 years ago
12

·four valence electrons ·can form rings and/or chains ·unique chemical bonding properties ·forms covalent bonds with numerous el

ements Some of the characteristics of _________ are listed. These characteristics result in the formation of millions of organic compounds, many of which are synthesized and found within cells. A) carbon B) hydrogen C) oxygen D) water Eliminat
Biology
1 answer:
nydimaria [60]3 years ago
3 0
Carbon. The easiest way to answer this is to look at a periodic table and single out the only element that has four valence electrons.
You might be interested in
1 point
Arada [10]

Answer:

breath in

Explanation:

odkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk

3 0
2 years ago
How do adaptations help Ann organism to reduce competition for food and other resourses
Gre4nikov [31]
An organism adapting to its environment leads it to be more ‘equipped’ for survival.
Competition is when other species fight for the same resources that another species needs. Also, it would produce offspring with these adaptations.

An example (to help you better understand);

A blue jay has great eyesight, strong wings, and sharp beak. (Better adapted organism) Another blue jay has great eyesight, weak wings, and dull beak. (The competitor/unadapted)

Both birds find the same food source and are now competing for it. The first bird has sharp beams, which is better for breaking, and ‘chomping’ the seeds/food. The second bird would struggle to consume its food (seed) unless it’s worms.

So which one is better adapted? The first blue jay.

And i hope this helped show how competition can be reduced.
5 0
3 years ago
You splice DNA fragments from a "foreign" source into the patient's gene so that the gene will begin manufacturing the enzyme. T
Arada [10]

Answer:

recombinant DNA

Explanation:

In molecular biology, recombinant DNA molecules are genetic sequences formed by combining DNA material from different sources (i.e., organisms, populations, species, etc). Proteins produced from DNA recombinant molecules are known as recombinant proteins. Molecular cloning is the most widely used technique in molecular biology in order to produce recombinant DNA molecules. In this technique, a cloning vector such as, for example, a plasmid of a bacterium, is used to insert a foreign DNA fragment into another cell which is then expressed in the host cell.

3 0
2 years ago
Why is so little of Earths surface found far above sea levels​
jonny [76]

Hello! :)

The eroded material finds its way to the bottom of oceans because of gravity (from... According to the hypsometric curve (plot between elevation and % of earth's surface), only about 29% of Earth's surface is above the mean sea level, rest 71% has an elevation less than mean sea level.

Hope this helped and I hope I answered in time!

~ Destiny ^_^

5 0
3 years ago
Dihybrid crosses
Darina [25.2K]

Explanation:

The phenotypes and genotypes of the progeny can be determined by a dihybrid cross of the parents.

The heterozygous male will have the genotype 'SSww' and the heterozygous female will have the genotype 'ssWW'.

When crossed, the F1 offsprings will have a hybrid genotype of 'SsWw'. These offsprings are heterozygous with spotted skin and wooly hair.

On self-crossing of the F1 hybrids, we find four different combinations of the alleles- SW, Sw, SW and sw. The probability of getting each of these combinations is 1/4.

Hence, the probability of any dihybrid type is 1 out of the 16 possible genotypes. Using Punnet square, we find

9 SSWW: 3 SSww: 3 ssWW : 1 ssww

This is the phenotypic ratio of the offsprings.

The ratio of the possible genotypes will be 1:2:1:2:4:2:1:2:1.

8 0
2 years ago
Other questions:
  • A botanist has the juiciest tomatoes in his backyard garden. what is true about these tomatoes
    15·2 answers
  • Suppose that a dominant allele (P) codes for a polka-dot tail and a recessive allele (p) codes for a solid colored tail. If two
    13·1 answer
  • Processes that increase the density of seawater include evaporation and
    13·2 answers
  • Flatworms have a concentration of nerve tissue and organs in one end of the body.what is the name of this characteristic?
    11·2 answers
  • What is am example of external ?
    15·1 answer
  • What change in a gene pool is occurring
    9·1 answer
  • RNA and DNA have different sugars in their backbones. Which sugar below belongs in DNA?
    9·1 answer
  • Heterochromatin differs from euchromatin in that heterochromatin
    15·2 answers
  • the human nervous system is broken up into central and peripheral parts. the central system (cns) is made up of
    13·1 answer
  • How does the snow in the polar regions help with climate change​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!