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schepotkina [342]
3 years ago
10

Which is not a characteristic of amniotic sac

Biology
1 answer:
Vikentia [17]3 years ago
8 0
<span>is there suppose to be an A) B) C) D)?</span>
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Sunlight is a resource organism can fight over. List 3 other resources organisms may fight over.
sasho [114]

Answer:

water, air and spaces

Explanation:

hope it helps :)

4 0
3 years ago
Which ecosystem service would suffer from the opening of a mineral mine along a small mountain range?
andreyandreev [35.5K]

Answer:

D. Supporting

Explanation:

Ecosystem services include provisioning, regulating, culture and supporting services.

Opening of a mineral mine along a small mountain range will affect the supporting services of ecosystem because supporting services deals with soil formation, provision of habitat and nutrition cycle.

Opening of mineral mine will destroy the tosoil, landscape, forests and wildlife of mountain area which affect the supporting services such as habitat and soil formation.

Hence, the correct answer is "D. supporting".

5 0
3 years ago
If a genetic mistake (i.e., a mutation) occurred during replication, and the new DNA strand has the sequence CAG, what amino aci
erica [24]
The CAG codon codes for Glutamine
3 0
3 years ago
What is the 2nd phase of cellular respiration? what happens?
liubo4ka [24]

The second phage of cellular respiration is transition stage.

Process take place in transition stage:

The transition stage take place in mitochondria. The pyruvate is combined with NAD+ to form NADH and acetyl co-enzyme molecules.

After transition stage, Krebs cycle starts.

5 0
3 years ago
Think about the two words that make up the term reproductive isolation. How do you think reproductive isolation affects the evol
Hitman42 [59]

Answer:

Reproductive isolation refers to the inability of an organism or species to breed successfully with other organism or species.

It may arise from various factors such as:

  • Geographical isolation such as river, mountain, etc
  • Behavioral changes such as mating time or season, mating rituals, mating location etc.
  • Physiological differences such as change in shape of sex organs which causes lack of fit between copulatory organs.
  • Genetic differences.

Reproductive and geographical isolations between two populations (of same species) inhibit the flow of genes among them. Slowly, these isolations increase the variations in the gene pools of the two populations.

These genetic variations keep on increasing with time. In addition, as an adaptation to their surrounding or habitat the two populations would develop different behavioral and physiological changes

With time, these differences will increase up to such an extent that the two populations would not be able breed with each other. Hence, it would lead to the evolution of one or both the populations into new species.  

7 0
3 years ago
Read 2 more answers
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