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zmey [24]
3 years ago
7

Testttttt helpppp meeee LOOLLLL

Biology
2 answers:
alexgriva [62]3 years ago
3 0

Answer: The first one

Explanation:

hram777 [196]3 years ago
3 0

Answer:

the second one I think

Explanation:

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Why do biologists believe that a primitive choanoflagellate protist is the ancestor to all animals
Tpy6a [65]
Since an animal only becomes more complex, and not simpler, an ancestor to all organisms would have to be the most simple and primitive organism.
3 0
3 years ago
1. Why do most people in tropical countries use white for their homes?
kobusy [5.1K]

Answer:

1:D

2:A

3:B

4:A(may not be)

5:B

6 0
3 years ago
In a worm what part of the digestive system would you see in a cross-section anterior to the gizzard
Kamila [148]
<span>Crop is the part of the digestive system you would see in a cross-section anterior to the gizzard in a worm. Crop is a thin wall organ that acts as a temporary food storage chamber. The esophagus leads to the crop and the organ next to it is the gizzard which serves as the food grinding chamber.</span>




5 0
3 years ago
At higher doses, __________ causes slowed or stopped breathing and can cause organ failure and gangrene.
klasskru [66]

The correct answer is Oxycodone.

Oxycodone refers to a drug, which is generally prescribed in certain cases to treat severe pain. At lower doses, it leads to fatigue, memory loss, headache, itching, anxiety, and constriction of the pupil. At higher doses, Oxycodone causes lowered heart rate, slowed or stopped breathing that may eventually lead to unconsciousness and death.

In addition, it can also result in inhibition of blood flowing in specific regions of the circulatory system. This can eventually result in organ failure, loss of muscle control, and gangrene.


7 0
3 years ago
Read 2 more answers
1. Skeletal muscle fibers do not have gap junctions, but heart muscle cells do. Why do you think there is this difference? In ot
Mumz [18]
<h2>Gap junctions </h2>

Explanation:

  • Skeletal muscle also called as voluntary muscle, is anchored to bone by tendons and is used to effect skeletal movement in activities such as locomotion and maintaining posture
  • Muscle associated with heart is called cardiac muscle is also an involuntary muscle but is more akin in structure to skeletal muscle
  • Both cardiac and skeletal muscles are striated, they contain sarcomeres and are packed into highly regular, repeating arrangements of bundles
  • Skeletal muscle do no have gap junctions because they are not single cells
  • The gap junctions, which are protein-lined tunnels, allow direct transmission of the depolarizing current from cell to cell, across the chambers of the heart, so that the cells contract in unison
  • Because of the way these gap junctions function, the cardiac muscle cells are said to be electrically coupled
4 0
3 years ago
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