20. In a main sequence star, equilibrium is reached when matter pulled inward by the gravitational force is pushed outward by (1 point)
convection of stellar material from the core
O immense pressure created by energy in the core
O coronal mass ejections originating from the core
endothermic cooling of hydrogen fuel in the core

Agene with the original sequence of atgtt—tact underwent substitution mutation to form atatt—tact after a few generations. tact is a part of a muscle protein encoding region, and atgtt codes for a digestive enzyme. what will be the effect of this mutation? a. the production of muscle protein will be affected. b. the production of digestive enzymes will be affected. c. the production of both the protein and the enzyme will be affected. d. the production of neither the protein nor the enzyme will be affected.

Would really appreciate it, i have an idea but not completely sure

Which of the following is an example of competition that could be found in a forest? question 14 options: deer eat berries and their droppings seed new areas creating more berry bushes two fox populations utilize the same rabbit population as their main food source two hawk populations utilize the same scorpion population as their main food source lack of sunlight due to changes in the seasons restricts the growth of certain plants