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3 years ago

Which terms complete the sentence given below?

Biology

1 answer:

Paha777 [63]3 years ago

7 0

Predators are the keystone species because they limit the population of prey.

<h3>Explanation:</h3>

Predators are those species which hunt for other animals to consume them as food and live. Where prey are those animals who are being hunted and killed by predators.

Keystone species are those species whose absence or removal from a ecosystem will greatly reduce the diversity from the ecosystem to a huge extent.

Now, if a predator like lion is eliminated from the ecosystem, then the prey like deer, goats etc in the ecosystem will live and reproduce at a very high rate, which will greatly increase the population density of these species. So the food for them will be killed at a very high rate, decreasing the plant varieties and population. So the overall diversity in the ecosystem will be highly reduced.

So the predators like lions, tigers, etc are the keystone species of an ecosystem.

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What is Chlamydomonas?

saveliy_v [14]

Chlamydomonas is a unicellular algae. It occurs in many Varieties .Most of these are free floating,fresh water green algae.

<h2>More information</h2>

the plant body is unicellular and biflagellate.
the cell is spherical or cylindrical in shape .
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3 years ago

Fred notices that all of his friend's brothers and sisters have dark hair. What is the most likely explanation for this characte

Ksenya-84 [330]

Answer:

They have identical genes.

Explanation:

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3 years ago

In what type of asexual reproduction are seeds produced even without the joining of sperm and eggs?

dem82 [27]

This type of asexual reproduction is called apomixis.
Apoximis is reproduction by special generative tissues without fertilization. It includes parthenogenesis in animals, in which the new individuals develop from unfertilized egg, and apogamy in certain plants in which the generative tissues may be the sporophyte or the gametophyte.

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3 years ago

Who is Thomas Malthus and what were some of his theories?

Oliga [24]

Answer:

Thomas Robert Malthus (born 1766) was a British Reverand and Scholar,. He was nfluential in Political Economy and Demography. Between 1798 and 1826 Malthus published six editions of his famous treatise. THOMAS wrote a book called "AN ESSAY ON PRINCIPAL OF POPULATION." He became known for his theories on population and factors on population growth.

Explanation:

3 0

4 years ago

Read 2 more answers

Which staternent is one of the three parts of cell theory

DerKrebs [107]

Answer:

The Cell Theory:

Explanation:

1.cells are the basic human of structure and function of all living things

2. cells are the smallest part of a living that that is alive a keeps the organism alive

3. all cells from from other cells

4. cells are damaged or destroyed, so they need replacing

hope this helps

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3 years ago