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Tamiku [17]
3 years ago
13

Fixed action pattern??? Wha????

Biology
2 answers:
bija089 [108]3 years ago
7 0
Fixed action patterns are <span>behaviors that follow a fixed, unvarying pattern and are used in accordance to studying animals and their behaviors to both the environment and each other. </span>
Verizon [17]3 years ago
4 0
I know! This is when an animal follows a behavior that is "fixed" or unchanging.
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The tyres of tractor are wide and large .Give reason.​
tangare [24]

Maybe this is the answer

3 0
1 year ago
Why did the five-kingdom system of classification fall out of favor?
LenKa [72]

Answer:

Answer is B. It did not reflect the actual evolutionary relationships among organisms very well.

Explanation:

The five-kingdom system of classification was initiated or formed by Robert H. Whittaker in 1969. And it involved the Kingdoms monera, fungi, protista, animalia and plantae.

This classification system was regarded as not so good because of placement of some certain organisms. For example, in the classification system, unicellular algae were put under the kingdom protista, when other multicellular organisms like algae were being classified under the kingdom Plantae.

3 0
3 years ago
If these hydrocarbons were similar in size, which one would most likely be an alkyne?
OleMash [197]
The hydrocarbon which would most likely be an alkyne is COMPOUND W WHICH HAS A BOILING POINT OF -23.
This is because, among hydrocarbons, alkynes have the highest boiling points as a result of the triple bonds in their structures.
The boiling points of the other compounds are -103.7, -47 and -75; all these boiling points are lower than that of compound W.
5 0
3 years ago
Compare and contrast light microscopes, scanning electron microscopes, and transmission electron microscopes. Sort each statemen
podryga [215]

Answer:

<u>Light microscope</u>:

  • use a beam of light to produce magnified images
  • can be used to examine living cells and tissues

<u>Scanning electron microscope</u>:

  • use a beam of electrons to produce magnified images
  • can be used to examine DNA
  • can be used to examine cells

<u>Transmission electron microscope</u>:

  • use a beam of electrons to produce magnified images
  • can be used to examine DNA
  • can be used to examine cells

Explanation:

Light microscope: is a commonly used microscope also known as compound microscope. Magnifies images from 40X upto 1000X. It uses ray of visible light to produce a magnified image. The light microscope can be used to view specimen of both living and dead cells or tissues. However, it doesn't give a detailed view of a specimen like electron microscope.

Scanning electron microscope: It uses electron beam as an illuminating source. It has a much higher resolving power than light microscope because it uses electrons instead of light. It magnifies object upto 500000 times the actual size. Internal structures can also be viewed. However, only dead specimen can be used because the beam of electrons can kill the cells. They are of two types:

  1. <u>Scanning electron microscope(SEM): </u>an electron beam passes over the specimen's surface and displaces electrons which are then focused on  a screen to form an image. Images appear in 3-D
  2. <u>Transmission electron microscope: </u>electromagnets magnify the image by passing beam of electrons through a thin specimen. Images appear in 2-D

7 0
3 years ago
What does each individual letter represent? (this is the chesapeake bay watershed)
polet [3.4K]

Answer:

F is the Susquehanna River

C is the York River

E is the Divide

D is the Estuary

G is New York and is completely off in the Chart

B is Rivers

A Tributaries

Explanation:

Hope that helps

6 0
3 years ago
Read 2 more answers
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