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
Romashka-Z-Leto [24]
3 years ago
13

Rna contains the nitrogenous base ______ instead of ______, which is only found in dna.

Biology
1 answer:
mylen [45]3 years ago
7 0
RNA contains the nitrogenous base uracil instead of thymine, which is only found in DNA
You might be interested in
Description of what is an ecosystem
shtirl [24]
A biological community of interacting organisms and their physical environment.
8 0
3 years ago
1. What type of response will a red blood cell have when placed in a hypertonic solution?
GalinKa [24]
Hypertonic solution means the solution with a lower water potential than the cell cytoplasm, such as salt water.

When the red blood cell is put into it, since the cell has a higher water potential than the solution, water molecules will flow from the cell back into the water due to osmosis.

Osmosis is always where water molecules flow from a region of higher water potential to lower, through a semi permeable membrane (Whcih is the red blood cell membrane in this case.)

Since water flowed out of the cell, the cell lose water and shrinks.

Hypotonic solution is where the solution that has a higher water potential than the cell cytoplasm.

So when the red blood cell is put in that solution, the water will flow from the solution into the cell this time, by osmosis.

The red blood cell will then gain so much water that the cell membrane cannot hold all and therefore burst.
7 0
3 years ago
Which statement describes how pioneer species and climax communities are different?
Lorico [155]

Answer: D). Primary species have large numbers of offsprings, and climax communities contain species that have small numbers of offsprings.

An ecological succession is a process of gradual changes occurs in a biological community with respect to changes in the non-living abiotic factors  (water, air and sunlight) and with respect to time until the ecosystem attains stability. Primary or pioneer species are the species which invade the previously barren and primitive landmass for their survival. These species make the environment suitable for the growth of other species. These grow and develop in the initial stages of succession. These species are simple organisms which reproduce asexually and produces large number of offsprings. Examples are lichen and moss. Lichen grows on the surface of rocks and acids released by them causes withering of rocks into soil which facilitate the growth of mosses and other plants. Climax community develops in an ecosystem after replacing many previously inhabiting species. Climax community develops in the end of the ecological succession. It contains species which are highly complex and uses sexual reproduction for the production of offsprings which are less in number as compared to those produced by pioneer species by asexual reproduction.  

8 0
3 years ago
Read 2 more answers
cell division starts with____parent cells and finishes with___Each daughter cell has____DNA as the parent cell
GaryK [48]
Cell division starts with one parent cell and finishes with two cells. Each daughter cell has the same DNA as the parent cell
3 0
3 years ago
These individuals had theories of evolution by natural selection, but did not receive the same credit that Darwin did: Group of
Sergeeva-Olga [200]

The individual who did not receive the same credit as Darwin was Alfred Russel Wallace.

<h3>What is the evolution theory?</h3>

The evolution theory is a scientific theory explaining how natural selection may change (evolve) phenotypes across generations.

Alfred Russel Wallace was an evolutionary biologist who understood the importance of natural selection on this process.

In conclusion, Alfred Russel Wallace did not receive the credit as Darwin.

Learn more about natural selection here:

brainly.com/question/23929271

#SPJ1

7 0
1 year ago
Other questions:
  • List the five characteristics a substance must have to be a mineral. Explain why coal and a glass marble are not minerals.
    14·1 answer
  • What are Surface ocean currents generated mostly by?
    5·2 answers
  • Owls eat voles (a relative of mice); voles eat grass and seeds. Which food chain is correct
    15·1 answer
  • How do animals that do not swim or crawl obtain food?
    10·1 answer
  • If star A is farther from Earth than star B, but both stars have the same absolute magnitude, what is true about their apparent
    13·2 answers
  • In wheat plants, the feature of having colored kernels is dominant to having white kernels that lack pigment. A true-breeding pl
    14·1 answer
  • Carbon dioxide is carried from the tissues to the lungs by a variety of mechanisms. Which of the following lists these mechanism
    7·1 answer
  • Each body cell of a chimpanzee contains 48 chromosomes. After mitosis, how many chromosomes are present in each cell?
    15·2 answers
  • 24. The product that honey bees produce and use it to seal cracks and repair their hives is :
    13·2 answers
  • A tall pea plant results from a dominant tall allele while the short phenotype results from two recessive alleles. What is the f
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!