Question

Что из перечисленых примеров,вы бы отнесли к рефлексам,а что к раздрожимости 00:58:00 1)укол гидры вызывает у нее мгновеное сокращение всех кожно мускульных клеток 2)если в каплю воды с амебами положить кристаллик соли,то они будут двигатьсяв направлении от него 3)движение эвглены зеленой в более освещенную часть водоема 4)сворачивание листовых пластинок у мимозы стыдливой при прикосновении к ним 5)слезотечение пи раздражении слизистой глаза луковым соком 6)раскрывание и закрывание корзинки одуванчика в зависимости от освщенности

Answer 1

Рефлексы: 1,4,5 а остальное нет. Это правильный ответ. Мы сейчас эту тему проходим. Поверь уж мне.

Answer 2

1,3,4,6-рефлексы, остальное раздрожимость

Answer 3

Reflexes and Irritability in the Given Examples

Reflexes and irritability are two different physiological responses in organisms. Reflexes are involuntary, rapid, and predictable responses to specific stimuli, while irritability refers to the ability of an organism to respond to stimuli. Let's analyze each of the given examples and determine whether they can be classified as reflexes or irritability.

1) The contraction of all muscle cells in a hydra in response to a hydra sting can be classified as a reflex. When a hydra is stung, it immediately contracts all its muscle cells as a protective response. This rapid and predictable reaction is an example of a reflex.

2) The movement of amoebas away from a crystal of salt placed in a water droplet can be classified as irritability. Amoebas have the ability to respond to changes in their environment, and in this case, they are moving away from the salt crystal. This response is not an immediate, rapid, or predictable reaction but rather a general response to the presence of the salt crystal.

3) The movement of a green euglena towards a more illuminated part of a water body can be classified as irritability. Euglenas have the ability to detect light and move towards it. This response is not an immediate, rapid, or predictable reaction but rather a general response to the light stimulus.

4) The folding of leaflets in a sensitive plant (Mimosa pudica) upon touch can be classified as a reflex. When the leaflets of a sensitive plant are touched, they rapidly fold inwards as a defense mechanism. This immediate and predictable reaction is an example of a reflex.

5) The tearing of eyes upon irritation by onion juice can be classified as a reflex. When the eyes are exposed to the irritant compounds in onion juice, they produce tears as a protective response. This immediate and predictable reaction is an example of a reflex.

6) The opening and closing of a dandelion clock (seed head) depending on the level of illumination can be classified as irritability. Dandelion clocks have the ability to respond to changes in light intensity, and in this case, they open during the day and close at night. This response is not an immediate, rapid, or predictable reaction but rather a general response to the light stimulus.

In summary, the examples that can be classified as reflexes are the contraction of muscle cells in a hydra (example 1) and the folding of leaflets in a sensitive plant (example 4). The examples that can be classified as irritability are the movement of amoebas away from a salt crystal (example 2), the movement of a green euglena towards light (example 3), the tearing of eyes upon irritation by onion juice (example 5), and the opening and closing of a dandelion clock depending on light intensity (example 6).