Ocean acidification reduces the amount of carbonate, a key building block in seawater. ... Some algae and seagrass may benefit from higher CO2 concentrations in the ocean, as they may increase their photosynthetic and growth rates.
        
                    
             
        
        
        
Answer:
lower
Explanation:
<em>Enzymes are chemical substances or biological molecules that catalyze biological reactions by lowering the activation energy threshold required to start such reactions.</em>
The activation refers to the minimum energy that must be conquered by the reactants in a chemical reaction in order to cross over to the product's side.
Enzymes work by lowering this energy and hence, making the crossing over to the product's side faster than normal. They are not themselves used up in reactions and can always be recovered and reused. 
<em>Correct answer</em>: lower
 
        
             
        
        
        
The action is Fixed Action Pattern.  It is a highly typecasted sequence of behaviors that, once begun, is usually carried to completion. It is triggered by a sign stimulus. The egg outside the nest is the stimulus.b <span>It is performed virtually the same by all regardless of environmental conditions. </span> Even if the egg is removed or slips away, she completes the behavior by returning an "imaginary" egg to the nest. 
        
             
        
        
        
Answer:
B
Explanation:
Emergency Medical Technicians (EMT) are responsible for offering basic care at a scene of incident while the patient is being taken to hospital.
They perform emergency medical assistance such as CPR and wound bandaging.
They are expected to offer quick reaction and and competent care since peoples lives depend on them. 
However since they are not expected to go beyond or above their scope of functions since they are not trained doctors.
 
        
             
        
        
        
Answer;
C. His mother carried at least one allele for that trait
Explanation;
-Men have a single allele of each gene on the X chromosome, inherited from their mother, and a single allele of each gene on the Y chromosome, from their father. 
-A sex-linked trait is a trait that is controlled by a gene or an allele located on the sex chromosome.
-X-linked traits are maternally inherited from carrier mothers or from an affected father. Each son born to a carrier mother has a 50% probability of inheriting the X-chromosome carrying the mutant allele.