Answer:
A dam that could allow fish to still pass through is a fishway/fish pass its a "fish ladder" that is structured on or around artificial or natural barriers to allow for fishes natural migration and the movement for potamodromous species.
The abiotic factors that play an important role in the tropical forests are the rain, to give the animals and plants the water they need to grow, the sunlight, it gives the plants and trees the energy they need to perform certain tasks like photosynthesis, which gives animals air to breathe.
Global warming affects the spread of animals because different areas will become suitable for different species, so they spread out. This can cause diseases to spread, as the animals may bring them with them. This can also happen in the opposite direction, where the climate change causes less habitats to be suitable for animals, so they become more sparse
Answer:
Explanation:
DNA guides the formation of an organism’s structures. DNA helps organisms function by telling them how to function.
DNA plays a role in the growth and reproduction of organisms.
The nitrogenous bases placed in between the DNA double helix strands, like rungs on a ladder, are positioned there because of the hydrophobic effect and are stabilized by hydrogen bonding. The stability of DNA also relies on the interactions between the hydrogen bonds between bases, hydrogen bonds between bases and surrounding water, and base interaction between neighboring bases.
Hydrogen bonds are able to stabilize the DNA double helix by pairing up with their complementary base pairs (guanine with cytosine and adenine with thymine)
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