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
Lera25 [3.4K]
3 years ago
15

How are influenza viruses classified?

Biology
1 answer:
miv72 [106K]3 years ago
7 0
I believe the answer would be C.
They are classified base on the viral surface proteins.
You might be interested in
Which is not a likely economic tool to address environmental issues?
Elden [556K]

Explanation:

Policy-makers have two broad types of instruments available for changing consumption and production habits in society. They can use traditional regulatory approaches (sometimes referred to as command-and-control approaches) that set specific standards across polluters, or they can use economic incentive or market-based policies that rely on market forces to correct for producer and consumer behavior. Incentives are extensively discussed in several EPA reports

Two basic types of traditional regulatory approaches exist. The first, a technology or design standard, mandates specific control technologies or production processes that polluters must use to meet an emissions standard. The second, a performance-based standard, also requires that polluters meet an emissions standard, but allows the polluters to choose any available method to meet that standard. Performance-based standards that are technology-based, for example, do not specify a particular technology, but rather consider what available and affordable technologies can achieve when establishing a limit on emissions. At times, EPA may completely ban or phase out the use or production of a particular product or pollutant, as it has done with chlorofluorocarbons (CFCs) and certain pesticides. Regulations can be uniform or can vary according to size of the polluting entity, production processes, or similar factors. Regulations are often tailored in this manner so that similar regulated entities are treated equally. MARK AS BRAINLIEST IF IT HELPS

4 0
2 years ago
A raccoon consumes 500 calories of food. 50 of those
exis [7]

Answer:

10 % of the energy (i.e., 50 calories) is converted to biomass . This efficiency of energy transformation is high

4 0
3 years ago
The Y axis of a graph gives the units for the
igor_vitrenko [27]

Answer:

The y-axis of a graph gives the units for the dependent variable.

Explanation:

Dependent variable is the variable being tested and measured in an experiment, it depends on the independent variable.

7 0
3 years ago
Which cell junctions form a barrier to the passage of materials?
kkurt [141]

Answer:

The correct answer is - tight junctions.

Explanation:

Tight junctions are one of the cell-cell junctions that make a barrier to the passage of material which is a present in epithelia. This barrier is impermeable to most of the materials with soluble molecules. This barrier is made up of the occludin and claudin proteins.

Tight epithelia have tight junctions and examples of such junctions are the distal convoluted tubule or DCT, and the collecting duct of the nephron in the kidney.

Thus, the correct answer is - tight junctions.

8 0
3 years ago
Which of the following can lead to an increase of squirrels in a park
olasank [31]

Answer:

Increased immigration.

Explanation:

Immigration = moving TO and area

5 0
3 years ago
Other questions:
  • True or false the greater the mass the greater the gravitational pull
    11·1 answer
  • Bulimia nervosa is characterized by __________, whereas anorexia nervosa is characterized by __________.
    14·2 answers
  • Do the protein polymers in our food have the same structure as the proteins polymers in our body
    5·1 answer
  • 6. Cell membranes are primarily composed of a double layer of phospholipids. Why are phospholipids particularly
    7·1 answer
  • In one experiment, gregor mendel crossed a pea plant that bred true for green pods with one that bred true for yellow pods. all
    8·1 answer
  • How many traits did Mendel study in pea plants? What was the name of Mendel’s paper he published and what year did he send copie
    15·1 answer
  • The human stomach secretes an enzyme known as pepsin. This enzyme breaks down proteins into smaller chemical molecules called pe
    5·2 answers
  • A/an __________ is a swelling of clotted blood trapped in the tissues.
    14·1 answer
  • For those with a cholesterol level between 200-270 mg/dL, there were 5 new cases of coronary heart disease during the subsequent
    12·1 answer
  • A virologist has a cell-free extract of herpes simplex virus (HSV) that has a titer of 6 x 106 infectious virus particles/mL. Th
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!