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forest cut down by a logging company</span>
Populations have a genetic variation among individuals and that is important to the populations ability to survive in different situations that have an affect on the natural selection. There are different factors which can increase or decrease the genetic diversity, and influencing natural selection. These factors can include an environmental factor, one of the major factors, which can cause changes in the genetic variation of a population and influence the natural selection. A famous and important example of the environmental factors affecting natural selection was made during the industrial revolution when many more gray moths made up the moth population. This was so that they could blend in with the soot from factories to avoid predators.
C:<span>Cellulose is the primary structural carbohydrate found in plant cell walls. Only a few animals have a limited ability to digest cellulose. However, </span>the fiber in the structural carbohydrates stimulates the animals' digestive systems<span>, so stools stay softer and move more quickly through the intestinal tract. This helps to prevent constipation and encourages regular defecation.</span>
Warm air mass advances on a cold air mass, causing rain.
Answer:
choanoflagellates and sponges are sister groups
Explanation:
The choanoflagellates are small unicellular organisms belonging to the Protista kingdom. These microorganisms are collared flagellates morphologically similar to the choanocyte cells of animal sponges, which have a central flagellum surrounded by a collar of microvilli. In consequence, it has been suggested that choanoflagellates may represent the closest living relatives of primitive metazoans (i.e., they are sister groups to sponges). This hypothesis has recently been supported by both molecular phylogenetic and comparative genomic analyses.