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
Semenov [28]
3 years ago
8

Phytophthora infestans is an organism that causes the serious potato disease known as potato blight. The effect of Phytophthora

infestans was most pronounced in Ireland in 1845-57. It killed most of the potato crop which caused over one million people to starve to death. What type of organism is Phytophthora infestans.
Biology
1 answer:
ArbitrLikvidat [17]3 years ago
6 0
It is an oomycete.

These can often look like fungi, but they're not! They're actually more closely related to algae than fungi.
You might be interested in
** ALL MY POINTS**
Flura [38]

PART 1


1. The answer is low frequency electromagnetic waves are able to go around obstacles due to their larger wavelengths. This characteristic of lower frequency waves is due to their ability to diffract around obstacles such as buildings and hills. Therefore, they transmit over long distances unlike high frequency electromagnetic waves.

2. One disadvantage is interference. Electromagnetic waves of the same frequency transmitted at the same time will interfere with one other and therefore the signal will be lost or scrambled. Other electromagnetic waves such as microwaves are affected (interfered with) by weather elements.

3. Analogue signals are continuous signals with wave-like properties while digital signals are discrete signals or pulse (ons (1s) and offs (0s) that represent bits). Analogue signal is represented by a sine-wave while digital signal is represented by discrete squares waves.

4. Digital signals are less immune to eavesdropping unlike analogue signals. Analogue signal is also more prone to distortion unlike digital signal. Digital signals transmit more data than analogue signals. Digital signal draw less energy to transmit compared to analogue signal.

5. Broadcasting of TV is nowadays using digital signals due to the high number of available channels. Computers and the interne utilize digital signaling to transmit data. Controls systems such as radar system also use aspects of analogue waves. Sensors also utilize analogue waves especially transducers such as seismology equipment.


PART 2


1. One way is by sending radio waves to probes sent out in space to give them commands during exploration. Radio telescopes also pick up naturally-occurring radio waves from space and analyze the data to make conclusions about space and the astronomical objects.

2. Radio waves are used in communication by transmitting data over long distances. One example is its use TV transmission. Another is through military defense of airspace. The radio waves are used to detect enemy intrusion into restricted airspaces using radar.

3. It is common that signal from the environment will be in analogue signal format. The conversion to digital signals allows for the digital equipment in the telescope to interpret and analyze the data. Telescopes prefer digital equipment because they consume less power, handle more data, and are less prone to intrusion, and distortion, hence more secure to analogue equipment.



3 0
3 years ago
Read 2 more answers
What is nitrogen used for in plants?
kherson [118]

Plants use nitrogen for <u><em>making protein</em></u> since proteins are rich in it because of the amino group of the amino acids.

4 0
2 years ago
Read 2 more answers
The answer is on the paper
kirza4 [7]
For what question????
3 0
3 years ago
Whats the answer? please help need to pass​
FinnZ [79.3K]

I am thinking D but I'm not sure‍♀️

8 0
3 years ago
Read 2 more answers
Which sentence best describes the process of convection? A. A rock melts when magma touches it. B. Sunlight travels through spac
8_murik_8 [283]


D is correct. Cool air sinks, which forces warm air to rise.

Convection is when warm material rises and cool material sinks

Hope it helps


4 0
3 years ago
Other questions:
  • Was the membrane at a stable equilibrium before you pushed it? How could you tell?
    12·1 answer
  • 1. How many different phenotypes are possible in the offspring of two parents with genotypes AA and aa, where A is the dominant
    13·2 answers
  • The 14 different species of finches in the galapagos islands originated from a single ancestral species. what is it about these
    12·1 answer
  • do birds and insects share any structural similarities that would suggest they are closely related taxonomically?
    5·1 answer
  • Identify structures found in fungi. Check all that apply. produce spores contain pseudopods contain hyphae contain a fruiting bo
    7·2 answers
  • 8. Which is true of the light reaction of photosynthesis?
    9·1 answer
  • assume that life on Mars requires cell potential to be 100mV, and the extracellular concentrations of the three major species ar
    9·1 answer
  • 4. What domain name should replace the question mark in this chart?
    5·1 answer
  • What are two types of evidence that support the hypothesis that earth and the rest of the solar system was formed by a condensin
    6·1 answer
  • Can someone please help me solve this
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!