Some insecticides interfere with the removal of acetylcholine from the synaptic cleft. what effect will this have on muscle contraction

Answers

Answer 1

Answer: The effect of insecticides will result in prolonged muscle contraction. Acetylcholinesterases are the enzymes that catalyze the breakdown of acetylcholine (Ach) in the synaptic cleft. This normally occurs, after the Ach achieves its effects on its receptors. On the other hand, acetylcholinesterase inhibitors inhibits the acetylcholinesterase enzyme thereby increasing the level and duration of action of the neurotransmitter ACh. Acetylcholinesterase inhibitors are used as insecticides.

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Which of the following statements about the first scuba diving suit is true?a.
It weighed about 100 pounds.
b.
It was made in the 1950s.
c.
It weighed about 50 pounds.
d.
It was made in the 1870s.

Answers

Scuba diving suit weighs about 50 pounds, that's why the correct answer is letter c. Scuba diving suit is usually wore when someone wanted to dive underwater. Scuba diving suit protects the diver underwater since it is fitted and covers the divers skin, it also has a breathing supplies to help the diver breath under water.

Answer:

D. It was made in the 1870s.

Explanation:

I just took the quiz on ed and got it right.

So i'm doing some test stuff and im kind of sucky at science sooocan someone help me?

Question 1
The excretory system lets go of wastes in the body.
A. True
B. False

Question 2
The endocrine system includes organs such as the:
A. Stomach and intestines.
B. Arms and legs.
C. Spinal cord
D. Bones and muscle

Question 3

The digestive system usually involves breaking down food in order for a body to use it as an energy source. (im pretty sure i know this one...)
A. True
B. False

Question 4
Which body system has a main focus on the heart, blood and veins?
A. Skeletal
B. Urinary
C. Circulatory
D. Nervous
Question 5
Which body system deals mainly with the lungs?
A. Respiratory
B. Circulatory
C. Excretory
D. Skeletal
thats all

Answers

I'll do my best to help you pal!
1)True
2)A
3)A
4)C
5)A
Good Luck!

Which characteristic do all these cells have in common? * 20 points Captionless Image Membrane-bound Organelles Vacoules Genetic Material Nucleus

Answers

Answer:

Thus, the common feature of the organelles within the list is that they are surrounded by a membrane. However, the membranes of each of the organelles are slightly different. For example, the nuclear membrane contains pores through which mRNA can travel to the cytoplasm in order for protein synthesis to occur.

Explanation:

How does atp become adp

Answers

If a cell needs to spend energy to accomplish a task, the ATP molecule splits off one of its three phosphates, becoming ADP (Adenosine di-phosphate) + phosphate. The energy holding that phosphate molecule is now released and available to do work for the cell.

State two different roles of spleen in the human body ?

Answers

Answer:

The spleen acts as a filter for blood as part of the immune system. It also helps fight against certain kinds of bacteria that cause pneumonia and meningitis.

Fights of infections as it is part of the lymphatic system. It also regulates the blood in the body and gets rid of old and damaged cells.

arrange the different phases in the correct order. write down only the correct letter and no phase can be repeated:based on meiosis.

Answers

The different phases in the correctorder:

Correct order: A B C D E F G H I

What is meiosis?

Meiosis is a type of cell division that occurs in sexually reproducing organisms to produce gametes (eggs and sperm). It involves two rounds of cell division, resulting in four daughter cells with half the number of chromosomes as the parent cell. Meiosis is important for maintaining the correct number of chromosomes in a species, as well as creating genetic diversity by mixing up the genetic information from the parents. It is a complex process that involves a series of phases including prophase I, metaphase I, anaphase I, telophase I, and then prophase II, metaphase II, anaphase II, and telophase II. During meiosis, homologous chromosomes pair up and exchange genetic information through a process called recombination, and then separate during the first division. The second division separates the sister chromatids, resulting in four haploid cells that are genetically distinct from each other and from the parent cell.

Here,

A. Interphase

B. Prophase I

C. Metaphase I

D. Anaphase I

E. Telophase I

F. Prophase II

G. Metaphase II

H. Anaphase II

I. Telophase II

To know more about meiosis,

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