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olya-2409 [2.1K]
3 years ago
5

The most primitive true animal belongs to the phylum ____.

Biology
1 answer:
VMariaS [17]3 years ago
6 0

Answer:

Porifera or Sponges

Explanation:

Porifera is the phylum of the simplest multicellular marine animals. Their body is composed of  two cell layers (something like tissues) and mesophyl between them. The body is in direct contact with surrounding water through the large number of pores and channels. What makes Sponges so simple is that their cells are unspecialized and that they  don't have nervous, digestive or circulatory systems.

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Assume that the mutation rate for a given gene is 1 × 10−6 mutations per generation. For that gene, how many mutations would be
sertanlavr [38]

Answer:

500

Explanation:

Mutation rate is largely known as changes that occur in the frequency of a particular gene over an extended period of time

So given that;

the  mutation rate of a particular gene = 1 × 10⁻⁶

The expected mutations after 500 million sperm are examined will be:

= (1 × 10⁻⁶)×(500,000,000)

= 500

Thus, The expected mutations  = 500

5 0
4 years ago
The process of passing an electric current through water is known as electrolysis. During electrolysis, the electric current dec
posledela

Answer:

An electric current is used

Explanation:

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3 years ago
Despite the fact that the various protists observed in this exercise belong to different
motikmotik

Complete question: This can be seen in the attached file below. It's contains the various protists observed in the exercise.

Answer: For a eukaryotic organism to possess a plantlike characteristics shows its ability to manufacture its own food through the process of photosynthesis.

Explanation:

Protists are single- celled or unicellular organisms. They are made up of eucaryotic cells in which the cell structure is complex with a well - defined nucleus. Typical example if protists includes the following:

--> Volvox

--> Spirogyra

--> Euglena

--> Diatoms

--> chlamydomonas

Some protists are said to be plant like and are known as protophyta. Example of such includes Euglena, Spirogyra and chlamydomonas. This is because they have organelles called chloroplasts. This contains chlorophyll which enables them to make their own food through the process of photosynthesis. Photosynthesis is the process by which energy for sunlight is converted to high energy containing organic compounds such as glucose.

5 0
3 years ago
What is the scientific name for phytoplankton
hoa [83]
The answer is zooplankton
7 0
3 years ago
Read 2 more answers
Mention many ways to change how we use water, Which way do you think is the best and explain why.
sergij07 [2.7K]

Answer:

The easiest way to monitor the usage is to manage the water flowing into the home. (If you have a slow flow in your home now, you have much more incentive to watch your use!) - Take baths that consume ten times less water instead of taking a bath.

Explanation:

Ways to save the water:

  • Switch off the tap while your teeth are cleaned
  • Insert your toilet cistern displacement unit to minimize the amount of water that is used with each flush
  • Get a shorter tub. Short shower.
  • Always use the laundry and dishwasher for maximum loads.
  • Remove a drop tap.
  • Build a drainage pipe with a water butt and water the plants
  • Water the lawn instead of a pipe for watering.
4 0
3 years ago
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