Answer:
The best answer from the list of options is option D (They are colorless and feed on other, smaller cells)
Explanation:
Euglenas have cells that contain chloroplasts, which means they can make their food like plants through photosynthesis, and when it is dark where they can't get sunlight they can also make food by engulfing their prey through the plasma membrane and absorb them. Euglenas are heterotrophic since they call also feed on smaller cells. Their whip-like tail when viewed under the microscope, is colorless. However, the chloroplasts make them appear green and they can also come in red color.
the extra cell in your blood cells
Answer: the capsation (the chemical that causes the hot, burning taste/sensation) causes pain and discomfort in the animal attemptng to eat the plant therefor protecting it.
Explanation:
no, we can not see radio waves. radio waves have the longest wavelength out of all the waves on the electromagnetic spectrum. we can only see visible light, which is towards the middle of the spectrum. the waves below or above visible light on the spectrum have wavelengths that are too long or short for the human eye to detect.