3 years ago

1. only males are fertile. true or false

Biology

2 answers:

Dovator [93]3 years ago

4 0

1. False and that’s all I know

BlackZzzverrR [31]3 years ago

3 0

Answer: 1 false 2 true 3 false

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The electrochemical gradient in a chloroplast can have a concentration of protons 1000 times greater on one side of a thylakoid

Lelechka [254]

The statement above is TRUE.
The electrochemical gradient in the chloroplast is a gradient of electrochemical potential of ions which move across the membrane of the chloroplast during the photosynthesis process. The proton gradient across the thylakoid membrane drives the ATP synthesis during photosynthesis.

5 0

3 years ago

Salmon eggs hatch in fresh water. The fish then migrate to the ocean (a hypertonic solution) and, after several years of feeding

Ray Of Light [21]

Answer:

Letter C

Explanation:

Salmon have a physiological adaptation that allows osmoregulation to occur in two different environments (seawater and freshwater). There are specific molecules in the salmon gills that "pump" and "remove" Na and Cl ions. When at sea these molecules pump the ions out of the salmon's body and into freshwater, the same molecules remove Na and Cl from the water bringing it into the animal's blood.