A smooth, egg-shaped hill left behind by a glacier is called a drumlin.
<span>Drumlins are </span>approximately 250 to 2000 meters long and 300 to 600 meters wide. D<span>rumlin is glacial landform composed primarily of glacial </span>till (unsorted glacial sediment), so <span>internal composition of a drumlin is stratified sand, unstratified till or bedrock.</span>
Answer:
it depends on changes in gene expression
So option B (hybrids have lower fitness than either parent population) is the correct answer.
What is Reinforcement?
Reinforcement is a consequence used in behavioral psychology to strengthen an organism's future behavior when that activity is preceded by a specific antecedent stimulus. This strengthening impact can be quantified as a higher frequency of behavior, a longer duration of behavior, a greater volume of behavior, or a shorter latency.
To learn more about Reinforcement
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I'm pretty sure the answer would be A. Chromosomes contain one or more genes.
Answer:
B. Base pairing occurs within an RNA molecule to give RNA the three-dimensional shape needed for specific functions.
Explanation:
Ribonucleic acid, known as RNA, is a type of nucleic acid found in living systems. In opposition to the other type of nucleic acid (DNA), RNA is a short single stranded molecule. Both DNA and RNA are made of nucleotides, composed of a phosphate group, nitrogenous bases and a pentose sugar.
The presence of ribose sugar and Uracil base in RNA instead of deoxyribose sugar and thymine base respectively structurally differentiates the molecule from DNA. However, base pairing occurs within the RNA molecule to form the three-dimensional shape of the RNA, which is key to the specificity of its function.
