Each male and female sex cell has 46 chromosomes in it. The number of chromosomes are reduced to half(23), so that when the sex cells combine, they also add up to 46(23+23). If the chromosomes did not reduce to half, the number of chromosomes would be off balance and the gamete would not survive.
Answer: The location of the ecosystem determines.
Explanation:
Adaptation is the dynamic evolutionary of animals or humans to a better state.
Reasons for changes in ecosystem may include:-
- Conditions of the ecosystem
- Organisms Environment etc.
Take for example, white coat over the hare species will help the population to remain insulated and protected against predators.
Answer:
explain what will happen to a person who lacks of hormone thyroxine in the body?
Insufficient thyroxine causes lots of problems both in young and adult as it affects muscles, memory, weight, infertility among others. Thyroxine is secreted by the thyroid gland which is sent directly into the blood stream
Explanation:
Tidal fluctuations can affect the abundance of aquatic organisms in an ocean environment. Which tide occurs only once per day and would therefore have the least impact on an abundance of aquatic organisms? answer is Neap
The information from the patient's health history is important for the hurse to report to the health care provider about the methotrexate is that the Methotrexate is teratogenic, and the patient should be taking contraceptives during methotrexate therapy. The other information will not impact the choice of methotrexate as therapy.