A gastrovascular cavity is a digestive sac with only a single opening. An alimentary canal has two openings (a mouth and anus) between its digestive tubes unlike the gastrovascular cavity in which food is ingested and eliminated through the same opening.
Here is your Answer.
Answer:
Lumen
Explanation:
Luminous flux is known as the power of light perceived by the eye. The SI unit of luminous flux is known as lumen where one lumen is the amount of luminous flux emitted from a directional unit point source through a unit solid angle.
Since the human eye can see only the visible spectrum of light which is perceived in the form of luminous flux and thus lumen.
Thus, the lumen is the correct answer.
Answer:
The correct option is <em>lower.</em>
Explanation:
Schizophrenia can be described as an inherited disease and it is a type of mental illness. As Armend has an identical twin brother with diagnosis of schizophrenia hence, he will have more chances than Robert whose fraternal twin sister has schizophrenia.
As fraternal twins develop from two different eggs hence, the chances in them having the same disease will be lower. Identical twins develop from the same egg, hence they will have more chances of having the same inherited disease.
This type of defense falls under the category of Müllerian mimicry. It is a type of mimicry where two or more species mutually presents themselves as harmful. Müllerian mimicry describes a situation where species have similar warning signals and they share genuine anti-predation.
Answer:
a. eukaryotes
b. unicellular
c. autotrophs; heterotrophs
Explanation:
Protists represent a separate kingdom of eukaryotic organisms (ie., organisms whose cells have a nucleus). The most important features of protists include: 1- they are unicellular organisms, 2-contain mitochondria, 3-can be parasites, and 4-generally live in optimal conditions in moist or aquatic environments. In the past, protists were divided into Protozoa (animal-like organisms) and Protophyta (plant-like organisms), which nowadays we know are heterotrophic (also often parasitic) and photosynthetic protists, respectively.