Answer:
three evolutionary lines
Explanation:
The Hox genes are master developmental genes found in animals, which are involved in the regulation of development by specifying the body plan of an embryo along the head-tail axis. Recently, several research groups studied the assortment of the Hox genes in three different marine organisms: 1- a priapulid worm (an unsegmented marine worm), 2- a brachiopod (phylum Brachiopoda), and 3- a polychaete worm (related to earthworms). Then, these research groups combined their research efforts to compare the assortment of the Hox genes observed in these species to those observed in previously studied animals including, among others, mice, fruit flies and sea urchins. From this combined study, researchers concluded that the animal kingdom can be divided into three primary evolutionary lineages.
Answer:
An atom makes up everything in the universe
Explanation:
The first answer Is A and the second answer is also A
Amount of carbon dioxide
Explanation:
The dependent variable in this experiment is the amount of carbon dioxide CO₂ produced by yeast during the experiment.
- The independent variable is the cause in an experiment. It is the variable that causes the change we are measuring. In this experiment, the yeast is the independent variable. The yeast is producing the carbon dioxide.
- The dependent variable is the effect in the experiment. It the variable changing in an experiment.
- The amount of carbon dioxide production is the dependent variable in this experiment.
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Experiment brainly.com/question/5096428
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