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
iren2701 [21]
3 years ago
15

Bacillus anthracis can cause infection via three different portals of entry. The ID50 of cutaneous anthrax is 10 to 50 endospore

s, whereas inhalation anthrax requires 10,000 to 20,000 endospores, and gastrointestinal anthrax requires 250,000 to 1,000,000 endospores. Which statement best describes a conclusion that can be drawn based on this information?
-Exposure to a small number of endospores (fewer than 1000) is most likely to result in gastrointestinal anthrax.
-Cutaneous anthrax is rarely observed when cases across the population are monitored
-The portal of exit impacts the infectious dose needed to cause infection at the portal of entry.
-Equal numbers of cutaneous, inhalation, and gastrointestinal anthrax infections are observed in human hosts.
-It is significantly easier to be infected with cutaneous anthrax as compared to other forms of anthrax.
Biology
1 answer:
dimulka [17.4K]3 years ago
8 0

Answer:

It is significantly easier to be infected with cutaneous anthrax as compared to other forms of anthrax.

Explanation:

LD50 is the lethal dose that can cause adverse effects and death. The LD50 of cutaneous anthrax is too low as compared to inhalation and gastrointestinal anthrax which means that only few Bacillus anthracis endospores can cause infection via cutaneous route while other routes require at least 200 times greater quantity to cause infection.

You might be interested in
How do elements get into our body?
fenix001 [56]
Hydrogen (62.9%), oxygen (almost 24%), carbon (nearly 12%), nitrogen (nearly 0.6%), calcium (0.24%) and phosphorus (0.14%).
4 0
3 years ago
Read 2 more answers
To my esteemed Biology colleagues: 10/15/19 I am National Park Ranger, Imani. I am writing you as my park is in desperate need o
Zanzabum

Answer:

See explanation below.

Explanation:

1. Explain the difference in the roles of producers, consumers, and decomposers in the Everglades.

In the Everglades, producers would be all <u>species of organisms that are autotrophs such as different species of plants</u>. Consumers are categorized into three: primary, secondary and terciary consumers. <em><u>Primary consumers</u></em><u> feed on plants (e.g. insects), </u><em><u>secondary consumers</u></em><u> eat the primary consumers (e.g. mice or rats), while </u><em><u>tertiary consumers</u></em><u> are higher predators that eat the secondary consumers (e.g. racoons)</u>. Finally, decomposers are bacteria, archaeans, fungi, or worms that live in soil which decompose organic matter.

2. Based on your knowledge of how to classify living organisms, in what domain and kingdom do the producers, consumers, and decomposers belong?

In Biology, the three domains are Archaea, Bacteria, and Eukarya; while there are six kingdoms: Archaebacteria, Eubacteria (true bacteria), Protista, Fungi, Plantae, and Animalia.

  • Producers, that is plants, belong to the Domain Eukarya and the Kingdom Plantae.
  • Primary, secondary, and tertiary consumers also belong to the Domain Eukarya and to the Kingdom Animalia as they are all animals and eukaryotes.
  • Decomposers are classified into the three domains: Archaea, Bacteria, and Eukarya. Bacteria belong to the domain Bacteria, archaeans belong to the domain Archaea, and worms and fungi belong to the domain Eukarya. On the other hand, decomposers are classified into Archaebacteria, Eubacteria, Protista (oomycetes), Fungi, and Animalia (worms).

3. How did energy travel in the Everglades BEFORE the alligators were removed?

Aquatic plants (producers) <-- bass <-- bluegill <-- gar <-- alligator

Aquatic plants (producers) <-- zooplankton <-- bass/bluegill <-- wood stork <-- alligator

Plants (producers) <-- cattle <-- alligator

Plants (producers) <-- insects <-- rats <-- racoons <-- alligator

4. How did removing the alligators from the food web change how energy flowed in the Everglades?

Once the alligators were removed from the food web, the populations that were once in decline began to recover because of the lack of predators. Consequently, the lack of alligators led to the uncontrollable growth of racoons, wood stork, and gar, which could also cause an alteration as they consume ecologically and economically important fish species such as the bass and bluegill.

5. How did the problem begin, and what action(s) should Ranger Imani take to solve this issue?

The problem began when the populations of alligator, an apex predator that sits at the top of the food chain, grew at an accelerated pace. This led to the uncontrolled predation of other organisms that are also fundamental to maintain an ecological balance. Therefore, Ranger Imani decided to humanely euthanize the alligators, which were preying upon them. This led to a huge increase in wood stork, gar, and racoon populations.

Alligators should not be completely removed because they help to maintain an ecological balance. Instead, Ranger Imani should work on controlling populations by implementing Wildlife Population Management strategies, such as sustainable fishing, to prevent a certain species population from reaching a high number of individuals in order to keep a healthy ecosystem where all populations are stable because removing all apex predators is not the appropriate strategy as it significantly alters the ecosystem.

3 0
3 years ago
Jessica has two balls. One ball has a mass of 1 kg. The other ball has a mass of 2 kg. She pushes each with a force of 100 N. Ho
Snezhnost [94]
<span>The 1-kg ball accelerates twice as much as the 2-kg ball.</span>
8 0
3 years ago
Three cells undergo meiosis. How many haploid cells are produced?<br> Ο 3<br> Ο 6<br> Ο 9<br> Ο 12
irakobra [83]

Answer:

the awnser is I believe is 9

6 0
2 years ago
Read 2 more answers
The drawing below shows a portion of the cell membrane and all of the molecules that comprise it.
PIT_PIT [208]
Transport particles in and out of the cell
5 0
3 years ago
Other questions:
  • In garden peas, long stems are dominant to short stems, and yellow seeds are dominants to green seeds, too long/yellow pea plant
    12·1 answer
  • Which is an autonomic body function? squinting in the sunlight salivating at the thought of a hamburger raising your hand in cla
    9·2 answers
  • What is the main function of structural adaptations? A. They help the organism survive in its environment. B. They help the orga
    14·1 answer
  • When conducting legal experiments on animals a researcher needs to obtain consent from the?
    14·1 answer
  • What is an organism that relies on other organisms for its food and energy supply; also called a heterotroph?
    5·1 answer
  • Which of the following are NOT present on the Moon.
    8·2 answers
  • A researcher analyzes a nucleic acid sample. After looking only at its nucleotide composition, he decisively concludes that this
    14·1 answer
  • 2. What is an example of something studied on the molecular level (as opposed to the atomic level)?
    9·1 answer
  • What part of the cell does 9 represent?
    11·2 answers
  • Help me with this question
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!