D. A duck flies to another pond.
The above sentence is an example of emigration. Emigration refers to moving from one area to another for a long or permanent period. In this instance, a duck is leaving the pond it originally resided in (along a population other ducks) in order to reside in another pond. Therefore, it can be said that the duck "emigrated".
False, because a niche is how one animal uses its habitat- many animals use many different niches
A strand of DNA having base sequence as ATG CGA. The complementary strand of DNA will be produced with base sequence as TAC GCT. In the double strand DNA nitrogenous bases paired in a specific manner, A (Adenine) always pair with T (Thymine) with double hydrogen bond or vice-versa and C (Cytosine) pair with G (guanine) with triple hydrogen bond or vice-versa.
The answer to your outstanding question is 3
There would be a much more severe cause of global warming if there is a sudden increase in greenhouses gases. With greenhouse gasses such as carbon dioxide, the heat of the earth cannot be penetrated through the atmosphere and will be trapped, the sunlight also cannot be reflected.