Biology, 27.06.2019 06:00 ryanez5306

Aeuglena is a one celled organism with some very interesting features. one of these features is the presence of eyespots, which allow the euglena to detect light. when a one celled organism detects light and moves towards it, this is known as

Answers: 1

Show answers

Answers

Answer from: StrangerMo

Answer: Positive phototaxis

Explanation:

Taxis is defined as the movement of organism under a stimulus. The stimulus can be light, food etc. Phototaxis is the movement of an organism when the stimulus is light. (Photo + taxis = light + taxis).Taxis is one of the many innate behavioural responses. There is a difference between tropism and taxis as tropism simply refers to a growth towards/away from the stimulus for e.g phototropism is shown by plants by growing towards the direction of sunlight. However, taxis is not growth but the movement towards/away from the stimulus .Phototaxis that is the movement when the stimulus is light is of two types:

1. Positive phototaxis - when an object move towards light. E.g euglena.

2. Negative phototaxis- when an object moves away from light. This is seen in insects such as cockroaches.

Answer from: heysonic91

When a one called organism detects light and moves towards it this is known as Flagellum

Answer from: barbie1salome

Answer: Positive phototaxis

Explanation:

1. Positive phototaxis - when an object move towards light. E.g euglena.

2. Negative phototaxis- when an object moves away from light. This is seen in insects such as cockroaches.

Answer from: Quest

white blood cells or wbc s are mainly 2 types-

1.agranulocytes

2.granulocytes

the monocytes or macrophages of agranulocytes , dendritic cells which are accessory leucocytes, and b cells which is one type of lymphocytes identify the antigens present on the pathogen's surface. these three cells are called antigen presenting cells(apc) which are phagocytes and destroy the antigens by secreting antitoxins. besides this leukocyte is always plays vital role in the immunity of the body.

Answer from: Quest

bc blah

explanation:

bc blah

Other questions on the subject: Biology

Biology, 21.06.2019 19:00, valeriegarcia12

Study this image. which statements best describe the rock shown? check all that apply. the grains of this rock are jagged. this rock has several coarse grains. the grains in this rock are very large. this rock has a non-banded pattern. the color of this rock is determined by its texture.

Answers: 2

continue

Biology, 22.06.2019 10:30, lexiemornelas

During a fierce storm a large number of tall trees on an island are uprooted by the wind and die. most of the trees on the island are now short trees and produce seeds that grow into short trees. what concept is shown in this example? question 5 options: natural selection artificial selection genetic engineering gene splicing

Answers: 2

continue

Biology, 22.06.2019 12:00, brookesquibbs

How long does it take a skateboarder going 6.0 m/s to come to a complete stop if she slows down at a rate of 2.0 m/s^2

Answers: 1

continue

Biology, 22.06.2019 14:30, maggie9459

Alexa is preparing for a presentation by creating note cards identifying keywords that describe various features of each type of plate boundary. which words apply to all three of the convergent boundaries?

Answers: 2

continue

You know the right answer?

Aeuglena is a one celled organism with some very interesting features. one of these features is the...