Explanation

 In cyclic photophosphorylation, electrons from the primary acceptor of Photosystem I (PSI) return to the cytochrome complex, specifically the cytochrome b6f complex, via ferredoxin (Fd)

.This process also involves plastoquinone (PQ) and plastocyanin (Pc) before the electrons return to PSI. 

Explanation

A person climbing a hill bends forward in order to increase stability.

 Increase the stability of an object by lowering its center of gravity or increasing the width of its base

SH5-8-2023

Explanation

Poxviruses are DNA viruses, while poliovirus, measles, and mumps are all RNA viruses. 

Explanation

 The last structure that urine passes through before exiting the body is the urethra. 

Explanation

The signal from a remote control to the device operated by it travels at the speed of Light. 

Explanation

A magnitude that has zero magnitude is called a zero vector or null vector.

This type of vector has a magnitude of zero, and its direction is considered arbitrary or indeterminate. 

Explanation

 A · A = |A||A|cos(0) = A² (since cos 0 = 1)  

   - This gives the magnitude squared of the vector.  

Explanation

 Alkali metals are found in Group 1 of the periodic table.

Potassium (K) is located in Group 1, making it an alkali metal. 

Explanation

Atrichous bacteria are bacteria that lack flagella, and Bacillus is a rod-shaped bacteria that is classified as atrichous. 

Explanation

pH is directly proportional to the oxygen-carrying capacity

Meaning that as pH increases, the ability of blood to carry oxygen also increases.