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Alecsey [184]
3 years ago
14

Corals are animals whose bodies consist of a single layer of cells

Biology
1 answer:
Eddi Din [679]3 years ago
5 0

Answer and Explanation:

Corals are a type of invertebrate within the <u>phylum Cnidaria</u>. They live in colonies of many identical individual polyps.A set of tentacles surround a central mouth opening. They also have a simple, radially-symmetrical body containing a single opening that serves as both the mouth and anus. The body is made up of two layers of cells, separated by a jelly-like layer with no internal organ. The two layers of cells make a single cell surrounding the body.

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After watching the video, how would you define the term ecological relationship? Are they always beneficial to organisms involve
dangina [55]

Answer:

There is no video but ecological relationship will be defined on a general note and it is not always beneficial to organisms.

Explanation:

In an ecosystem, organisms of the same or different species tend to interact with one another. This interaction is referred to as ECOLOGICAL RELATIONSHIP between the involved organisms. An ecological relationship can be of different types depending on the effect.

SYMBIOSIS is an ecological relationship between two organisms that interact together. SYMBIOSIS can either be mutualistic (both organisms benefit), parasitic (one organism loses and one gains), or commensalistic (one organism benefits and one neither benefits or loses). Another ecological relationship is PREDATION, where one organism called the PREDATOR feeds on part or all of another organism called PREY in order to obtain energy.

As stated above, some of the organisms involved in an ecological relationship benefits while others lose. Hence, it is not always a beneficial relationship to organisms.

7 0
3 years ago
Ling, a 75-year-old grandmother, complained that her vision was becoming obscured. Upon examination by an ophthalmologist she wa
yan [13]

Answer:a. A cataract is a clouding of the lens. Some cataracts are congenital, but most are due to age-related hardening and thickening of the lens, diabetes mellitus, or exposure to UV rays over time. The lens can be removed and replaced

with an artificial lens.

Explanation:

7 0
3 years ago
How would damage to the left posterior column affect you?
Yanka [14]

Answer:

Posterior column mediates a pathway called as posterior column medial lemniscus pathway in central nervous which is responsible for mediating certain sensations like touch, vibration etc. Damage to the left posterior column unable to transmit signals to the primary somatosensory cortex in the gyrus and parietal  lobe of the brain.

Explanation:

  • The spinal cord and cerebrum is connected by some specialized tract called as white matter tract. These tracts are either ascending or descending.
  • The another name of ascending pathway is known as medial lemniscus pathway.
  • The origin of this pathway takes place within posterior column of the spinal cord.
  • Posterior column medial lemniscus pathway is important as it transmit signals to the cerebrum which is responsible for generating impulse like vibration, touch etc.
  • Thus damage to this column can't be able to transmit signals to different parts of cerebrum and thus impulse like touch, vibration,pressure etc will not generate.

6 0
3 years ago
Find newspaper or magazine articles this week about the United Nations. At the end of the week, write a brief summary about the
nikklg [1K]

Answer:

In addition to maintaining international peace and security, the United Nations protects human rights, delivers humanitarian aid, promotes sustainable development and upholds international law.

Explanation:

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2 years ago
If you pick up a novel object that you've never seen before and run your fingers along it to get a better sense of its shape, yo
Diano4ka-milaya [45]
E because i looked on quizlet idk look up the answer sorry
3 0
3 years ago
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