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
Neko [114]
3 years ago
5

Need help plz. anyone that can help?

Biology
1 answer:
NikAS [45]3 years ago
7 0

Answer:

the answer may be optionA..

You might be interested in
Some autoimmune disorders are thought to be caused by _________, which occurs when an infectious agent is composed of antigens w
EastWind [94]

Answer: adaptive immune response

Explanation:

Autoimmune disorders are caused by different microoorganism and drug which manipulates the immune system in a way that immune system become unable to recognise between self antigen and foreign antigen. In that case immune system treats foreign antigen as self antigen which cause systemic or organ specific damage.

The exact cause of autoimmune disorders is unknown and hence it is  thought that it is caused by adaptive immune response which builds against self antigens and causes damage to the cells.

Hence, some autoimmune disorders are thought to be caused by adaptive immune response.

4 0
3 years ago
(ASAP PLEASE) Dichotomous key of brewer’s yeast (saccharomyces cerevisiae) e. coli bacteria (escherichia coli) green hydra (hydr
Serjik [45]

Answer:

Does the organism have legs?

Does the organism reproduce asexually?

Can the organism ferment?

Is the organism infectious?

Explanation:

The questions HAVE to be yes or no, in order for it to effectively determine which species is which.

4 0
3 years ago
Use an example from nature to explain how natural selection causes populations to change as their environment change include the
ivanzaharov [21]

Answer:

<u><em>Galapagos finches</em></u><u> have various beak sizes that make foraging for food more successful.</u>

Explanation:

Organisms evolve over time due to changes in their genome. These are pontaneous, and occur in DNA at random. These changes are called mutations and form alleles or different forms of a gene.

Over time within a population, the number alleles increase the variation of the population. These variants may confer specific traits within an individual, that may confer a biological advantage.

Thus, the trait may make the organisms more capable of obtaining food, shelter a mate etc. or ensure survival, i.e. they are able to pass on their genes to the next generation.

5 0
2 years ago
NO FAKE ANSWERS AND NO LINKS. What is the role of an ovule in plants?
Sauron [17]

Answer:

ovule, plant structure that develops into a seed when fertilized. ... A small opening (the micropyle) in the integuments permits the pollen tube to enter and discharge its sperm nuclei into the embryo sac, a large oval cell in which fertilization and development occur.

4 0
2 years ago
Read 2 more answers
Example of factor isolating question​
Digiron [165]

Answer:

The answer is below

Explanation:

Factor isolating question​ is a type of question often used by the researchers during a scientific study or social research which answers the question of what by isolating, categorizing, describing, or naming the situations accordingly.

For example:

What is the level of US Constitutional effectiveness in terms of

1. Public service holders performance

2. Civil servants performance

3. Private sectors

4. Effectiveness measured rate

3 0
2 years ago
Other questions:
  • Which relationship is shown in the graph?
    15·2 answers
  • Protests that group together and move by streaming along a mass of cytoplasm are called?
    14·1 answer
  • The circulation of blood to all organs of all the systems of the body is known as
    15·1 answer
  • Which of the following is NOT an example of emitted light?
    15·1 answer
  • A review of the cladogram shows a common ancestor for these four types of vertebrates. Which statement BEST explains the genetic
    13·2 answers
  • Osmosis is a different type of blank diffusion
    9·1 answer
  • What is the heat of the sun
    11·1 answer
  • Assuming DNA is replicated correctly (so there are no mutations),
    5·1 answer
  • How are humans responsible for environmental pollution​
    11·1 answer
  • During transcription, what happens to the RNA polymerase if a repressor protein attaches to the operator?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!