Answer:
In the given case, the most appropriate step to be taken by Brian in order to formulate the hypothesis is to visit other households with cats. In the given case, Brian has to confirm that whether he is allergic to cats or not, and for this, he must go on to find if a similar sneezing reaction is experienced when he is around other cats apart from aunt's cat.
It can be a case that some other environmental elements may have been resulting in the condition. Thus, wearing a mask would not help the cause straightforwardly as it would not confirm that Brian is allergic to cats.
D. wbc are not made in lymph nodes, wbcs are typically made in bone marrow and the thymus gland
Answer: 1. a video that shows a large river that has penguin populations on both sides.
Explanation:
Reproductive isolation is a phenomena which occurs when members of the same species becomes separated due to a geographical, physical or behavioral barrier. The members of the same species after separation adapt to changes and this is the basis of speciation or development of new species.
Option 1 is the correct option as the river is the geographical barrier, between the two separated penguin populations.
<em><u>Question</u></em><u>:</u> The process by which electrons from the quinone pool are forced against the thermodynamic gradient to reduce nad+ to nadh is called reverse
<em><u>Answer:</u></em> Reverse Electron Flow
<h3>^^Hope this helps and have a wonderful day^^</h3>
