Can you include the following substitutions??
Generally, 10% of total available energy is transferred to the next trophic level in any food chain. Rest about 90 % of the stored chemical energy is lost as heat, a by-product of respiration. Let’s assume a 10% transfer rate, starting from producer (100%), primary consumer (10% ), secondary consumer 1%) and tertiary consumer have (0.1%). Therefore, quaternary consumers will have less than 0.1% of energy. Thus, statement is true.
Answer:
D. The total energy of a system can increase only if energy enters the system
Explanation:
According to the law of Conservation of Energy, energy can neither be created nor destroyed but can be transformed or converted from one form to the other.
A system has the same energy until there is an addition of energy externally. When energy is added, it will lead to an increment in energy. So, when work is done to the system or the system heated, energy increases.
Answer:
C) All DNA has the same structure, so the modeled DNA could be found in any living organism.
Explanation:
The DNA is the abbreviation for deoxyribonucleic acid. all the living organisms have DNA as their hereditary material. The DNA is consist of nucleotides. The nucleotide are the combination of deoxyribose sugar, nitrogenous base and phosphate ion. The nucleotide unit is same in the DNA of all the organism including bacteria. The bases adenine, cytosine, guanine and thymine is present in all type of organism. The sequential arrangement of the bases determine the character of the organism.
The birth control patch prevents pregnancy by stopping sperm from meeting an egg (which is called fertilization). Like most birth control pills, the patch contains the hormones estrogen and progestin, which are similar to hormones our bodies make naturally. You wear the patch on certain parts of your body, and the hormones are absorbed through your skin.
The patch stops your ovaries from releasing eggs (called ovulation). No ovulation means there’s no egg hanging around for sperm to fertilize, so pregnancy can’t happen.
The patch’s hormones also thicken the mucus on your cervix. Thicker cervical mucus makes it hard for sperm to swim to an egg — kind of like a sticky security guard.
