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3 years ago

Why is cohesion of water important to life on this planet?

1 answer:

7 0

Water molecules stick to the cell walls of plant's thin veins which helps prevent the water from falling backwards due to gravity.

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Why do some species demonstrate seasonal dimorphism? What environmental triggers stimulate these physical changes? What physiolo

Irina18 [472]

The main environmental factors that play inevitable role in seasonal dimorphism are temperature and the length of the day.

Seasonal dimorphism is a process by which a species of organisms change their look and appearance, especially in their size and color following the change in the seasons. The main environmental factors inevitable in this type of dimorphism are temperature and the length of the day. In simple words, the phenomenon with one species having differently looking images at different times of the year is called seasonal dimorphism.

Summer drought stress and winter cold stress in a specific area are the environmental triggers that stimulate these physical changes.

Seasonal dimorphism is considered from the anatomical viewpoint. Significant differences can be observed between winter and summer leaves obtained from the same individuals.

Learn more about dimorphism here : brainly.com/question/4316806

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6 0

2 years ago

These periodic changes on Earth are a result of the five major history that have occurred throughout Earth's

shepuryov [24]

Changes sea level by 100 meters

Exposure of continental shelf

Changes in continental shelf composition

Mass extinctions of species in certain areas

Changes in the water cycle

Changes in landscape

Changes in topsoil characteristics

Answer:

A. Ice Ages

Explanation:

These periodic changes on Earth are a result of the five major ICE AGES that have occurred throughout Earth's history

The five major Ice Ages that throughout the Earth's history we're the following:

1. the Huronian: this occurred around 2.4 billion years ago

2. Cryogenian: this followed Huronian age, and it occurred around the period of 850 million years

3. Agondean-Saharan: this major ice age occur around 460 million years ago.

4. Karoo this is a period of about 360 million years

5. Quaternary is the present age, and it has been in existence since about 2.6 million years ago till the moment

Hence, in this case, the correct answer is Ice Ages

8 0

3 years ago

Type of bond that forms to join monomers into polymers

solmaris [256]

Bond covalent. monomers are joined together by a dehydration reaction in which two molecules are covalently bonded to each other through the loss of a water molecule

5 0

3 years ago

Transcription results in complementary strands of mrna whereas translation results in?

blsea [12.9K]

Transcription creates complementary strands of mRNA. This is basically copying a portion of the DNA molecule. Translation is then used to synthesize proteins. After the mRNA is 'copied' it is read by enzymes and the protein that is encoded in its nucleotide sequence is then synthesized.

7 0

2 years ago

Liverworts, hornworts, and mosses are grouped together as the bryophytes. besides not having vascular tissue, what do they all h

adelina 88 [10]

The choices can be found elsewhere and are as follows:

A) They are all wind pollinated.
B) They are heterosporous.
C) They can reproduce asexually by producing gemmae.
D) They require water for reproduction.

The correct answer would be option D. Besides not having vascular tissue, they require water for reproduction. Their flagellated sperm must swim through water to reach the egg. Hope this answers the question.

6 0

3 years ago