Answer:
Because each subject in an experiment has to have equal conditions to ensure the most accurate results. And water temperature is known to impact plant growth. An experiment using different water temperatures is a terribly inaccurate experiment.
<u>Answer</u>: Cystic fibrosis is a genetic disorder that causes thick mucus secretions.
<u>Explanation</u>:
- <em>Cystic fibrosis</em> is a genetic disorder caused by mutations in a gene that makes a protein called CFTR (cystic fibrosis transmembrane regulator).
- The CFTR protein normally functions as a channel for transport of chloride ions in cells responsible for mucus production.
- A person suffering from cystic fibrosis produces abnormal CFTR protein or no CFTR protein at all.
- This is the reason that thick, sticky mucus is produced instead of the thin, watery kind.
<span>Protected left turns are areas for turning that are controlled by a traffic signal or traffic sign. The traffic sign may be light.</span>
A green light means you may turn left. while <span>a red light means you must stop. Opposite to this, non protected left turns are not controlled by traffic sign.
</span>
Answer:
D
Explanation:
Co-dominance is when both alleles combine to form an intermediate phenotype. It's like crossing a red and white flower and getting a pink flower.
Its B since the lower leaves need sunlight to make food (photosynthesis)
