Answer:
maternal inheritance
Explanation:
the differing levels of expression of the mutant phenotype in different progeny
Answer:
C and D
Ocean acidity was greater in 2010 than in 2000.
Heart disease is the major cause of death in the United States.
Explanation:
just took the question and those are the only two that are correct.
The LITHOSPHERE is the rocky outer part of the earth , is is made up of the brittle crust an top of the mantle.
Energy is lost at each trophic level.
The correct answer is D. Abstinence
Explanation:
A contraceptive method or birth control method refers to a method used to avoid pregnancy or reduce the probability of getting pregnant. From antiquity, there have been different contraceptive methods but only in the last decades, methods have been designed based on science and its effectiveness has been studied.
Because of this, nowadays there are many contraceptive methods such as pills, condom, and implants that are about 80% to 95% effective, sterilization that is a around 98% effective and natural methods that have a lower percentage of effectiveness. But the only method that has been proven as completely effective or 100% effective is abstinence because by avoiding any type of sexual intercourse it is virtually impossible an egg can be fertilized by a spermatozoid.
