Hi there!
A prezygotic isolating mechanism is a mechanism that causes something to happen, not allowing the organisms to breed before fertilization. I'll explain each one for you.
A - That is postzygotic because the organisms were not stopped before fertilization. The result is a sterile organism.
B - Again, that is postzygotic because the organism was produced.
C - This is prezygotic! The sperm dying shows that something is in action to prevent fertilization, meaning that it cannot happen.
D - Fertilization was successful, so it is postzygotic.
ANSWER:
C - the sperm dies when it reaches the female tract
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The presence of some water body like oceans, seas, or large lake in an area affects the climate such that it moderates the weather so that highs and lows are less extreme.
Climate is a type of weather that remains in an area for a very long-time. A specific kind of weather is the identity of any area and is called climate. In general, the average time period for a climate to remain the same of over 30 years.
Weather is the short term condition of any smaller area that can change at any instant. It can be of different varieties like cloudy, windy, rainy, dry, etc. Th presence of water bodies affects the weather because the water allows a region to cool down to heat up quickly.
To know more about weather, here
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Answer: Option A.
Decreased urine volume.
Explanation:
The direct result of antidiuretic hormone is decreased urine volume because it is the hormone secreted by the hypothalamus of the the brain and stored pituitary gland which control blood pressure and make the kidneys to release less water, as little water is released by the kidneys, there will be little amount of urine produced.
This hormone reduce the urine volume or amount of urine produced.
Answer:
The higher biodiversity in an ecosystem means that there is a greater variety of genes and species in that ecosystem.
Explanation:
Answer: a membrane containing a larger proportion of unsaturated fatty acids
Explanation:
