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3 years ago

What is the claim to why magnets flies

Biology

1 answer:

enot [183]3 years ago

8 0

Answer:

Tiny magnets attached to the flies made it possible to upset the insects by zapping them in mid-flight with brief magnetic pulses, forcing them to roll like out-of-control aircraft. But the flies did not stay out of control for long.

Explanation:

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Which of the body's systems directs and coordinates the interrelated activities of the gastrointestinal tract? Which of the body

mixas84 [53]

The right option is; The neuromuscular system

The neuromuscular system directs and coordinates the interrelated activities of the gastrointestinal tract.

The neuromuscular system connects the central nervous system to the peripheral nervous system and it is composed of the nervous system, somatic system, autonomic system and the muscular system which include skeletal, cardiac, and smooth muscles. The neuromuscular system is important in the activities of the gastrointestinal tract, body movements and breathing.

4 0

4 years ago

State the role of the following in the human heart: 1)septum 2)valves

yaroslaw [1]

Answer: Septum: Prevents oxygen rich blood mixing with oxygen poor blood in the heart.

Valves: Prevent backflow.

Explanation:

7 0

4 years ago

Please please please help me :(

OlgaM077 [116]

all of these are good examples !!

6 0

3 years ago

Name each numbered stage in the plant cell cycle diagram:

zheka24 [161]

Answer:

1. Metaphase

2. Prophase

3. Telophase

4. Interphase

5. Interphase

6. Interphase

7. Anaphase

8. Interphase

9. Telophase

10. Metaphase

11. Interphase

12. Interphase

13. Interphase

14. Interphase

15. Prophase

16. Interphase

17. Metaphase

18. Anaphase

19. Interphase

20. Interphase

21. Prophase

22. Interphase

Explanation:

The cell cycle is divided into two main divisions. The Interphase ad the M phase or the Mitotic phase.

Throughout Interphase, the cell is not dividing yet, but it is preparing to divide. It synthesizes the nutrients it will need, and grows in preparation to become two cells. This is actually the phase the cell spends the longest time.

Mitotic phase is when the cell starts to divide. It is separated into:

Prophase:

In this phase the chromosomes are condensed and mitotic spindles start to form. These spindles are made up of microtubules that will help later on to split the chromosomes. The nuclear membrane disappears so that the chromosomes will be free to move.

Metaphase

This phase is marked by the alignment of the chromosomes in the middle of the cell. They line up and you will find the asters at the opposite ends of the cell, where the microtubules stem from, attaching themselves to the center of the chromosomes, which we call the kinetochore.

Anaphase

In this phase you will see that the chromosomes are separated by the spindle fibers and are pulled at opposite ends of the cell. The cell then becomes longer by the other spindle fibers that are not attached to a chromosome.

Telophase

This phase is the end phase. The two sets of chromosomes are then enclosed by new nuclear membranes forming two nuclei and other cellular structures just as the cells are about to separate completely. As the two new cells move further apart, in plant cells a cell plate forms, dividing the two cells. The movement of the two cells splitting apart is called cytokinesis and it happens just as mitosis is about to end.

Attached is a picture of the cell cycle of a plant cell.

4 0

3 years ago

If someone blows a puff of air into your eye, you will reflexively blink. No one had to teach you to blink when air hits your ey

viva [34]

Answer:

The puff of air is an unconditioned stimulus, and blinking is an unconditioned response.

Explanation:

An unconditioned stimulus is the trigger for an unconditional natural and automatic response. In other words, all the action that will result in an automatic response, such as the puff of air, before the automatic blinking response.

An unconditioned response is that reaction we do without having learned it from anyone, but it comes out automatically and naturally. This action always arises after an unconditioned stimulus.

Some examples of this interaction between stimulus and response can be: when we burn when we touch something hot and take out our hand, when we cry when we cut onion, or jump when we hear a loud sound.

This concept was discovered by Russian physiologist Ivan Pavlov.

3 0

3 years ago