Nosepiece: The upper part of a compound microscope that holds the objective lens. Also called a revolving nosepiece or turret.
The true statements are:
1) Catabolism is the process in which complex substances are broken down, yielding a net output of energy.
Catabolism reactions break down macromolecules (lipids, proteins, nucleic acids and sugar) into smaller units that can be used for further reactions, for energy, for the synthesis of new polymer molecules or be simple waste products.
2) Metabolism is an integrated system in which many of the same reactions participate in degradative (catabolic) and biosynthetic (anabolic) pathways.
Metabolism combine all chemical reactions of an organism. Functions of metabolism include: providing energy form food molecules, synthesis of building blocks of the cell, elimination of the waste products.
3) Anabolism involves the synthesis of polymeric biomolecules and complex lipids from monomers such as fatty acids and nucleotides.
Anabolic reactions are opposite of those in catabolism: these reactions require energy (endergonic processes) for the synthesis of necessary molecules for the cells. That energy is the product of catabolic reactions.
I think the answer is A) their leaves
It is a mating in which an individual showing a dominant phenotype is crossed with an individual showing its recessive phenotype. In a test cross, the unknown individual must be of a dominant phenotype because if the phenotype is recessive the genotype will have to be homozygous recessive.
RISK: The combined pill can cause headaches
BENEFIT: It is free
RISK: The Male condom is the least effective as it can split or leak
BENEFIT: Is inexpensive and often free
RISK: Requires an operation. (However, it cannot be reversed, so if they are planning to have a family in the future, they cannot)
BENEFIT: Is 100% effective
ANSWER TO Q:
The man and woman should not consider sterilisation as a method of contraception as although, it is 100% effective, they cannot have a family in 5 years time as it is irreversible. Instead, a better alternative would be a male condom as it is free and inexpensive. But, it could lead to unwanted pregnancy as it is not always effective because there is a chance it will split or leak. An even better method is the combined pill, as it is more effective than condoms and is free from a GP. However, it could cause headaches