The pituitary gland secretes a hormone called antidiuretic hormone (ADH) which reabsorbs water in the kidney from the urine
Answer:
When a jogger starts to run, the rate at which his muscles produce CO2 rises sharply. The CO2 in his blood rises only slightly before he starts to breathe faster and his heart starts beating stronger. Soon his increased rate of CO2 production is balanced by an increased rate of CO2 removal. This would be an example of negative feedback because the jogger's circulatory and respiratory systems are systems regulator.
Explanation:
When an organism increases its partial pressure of carbon dioxide in the blood, it generates a decrease in the physiological blood pH that triggers the activation of a large number of enzymes and, as a gas, it increases its internal partial pressure in the body and thanks to this it spreads to the outside (environment by means of the lung exchanging it for oxygen) thanks to the fact that all gases ALWAYS diffuse to areas of higher partial pressure towards areas of lower partial pressure. That is why homeostasis, and gas exchange, occurs.
all cell membranes are made of lipids
Answer:
D. Polymerase chain reaction
Explanation:
PCR is very percise; used to amplify or copy a specific DNA target from a mixture of DNA molecules by:
- two short DNA sequences (primers) are bind to start and end the DNA target
- perform the PCR; DNA templates is added to a tube that contains primers, free nucleotides, and the enzyme (DNA polymearse)
- it is mixed in a PCR machine that increases and decreases the temperature of the sample
- mixture is heated to seperate the double strnaded DNA templated into single strands
- mixture is cooled so the primers can bind to the DNA template
- the DNA polymerase will synthesize to new strands of DNA from the primers
- during synthesis, the end of the first cycle, the DNA molecule will consist of a new and old DNA strand
- PCR continues with added cycles to repeat the steps
- newly synthesized DNA segements serve as templates in later cycles; which can be copied over and over.
Answer:
the new traits would develop only from different parents creating the new offspring and the traits mixing over time that way the traits can better adapt to the environment.
Explanation: