Answer:
A) XX
Explanation:
Each human cell is diploid (2n) and possesses 23 pairs of chromosomes. Out of 23 pairs, 22 pairs are autosomes and 1 pair is sex chromosomes. Sex chromosomes are designated by alphabet X and Y. In human females, each cell has two XX chromosomes, whereas males have one X and one Y sex chromosome.
The first land plants appeared around 470 million years ago, during the Ordovician period, when life was diversifying rapidly. They were non-vascular plants, like mosses and liverworts, that didn't have deep roots
Equation: sunlight + Carbon Dioxide (6CO2) + Water (6H2O) = Glucose + Oxygen
Reactants: Sunlight + Carbon Dioxide + Water
Products: Glucose and Oxygen
Phrenology is considered a pseudoscience because it lacks quality experiments. Since phrenology is the study of the brain by looking at the size and the shape of the skull, there is no biological proof through experiments.
Answer: it lacks qulality experiments
Credit to: @SociometricStar
+ = <3
Answer:
B - Repeating the experiment gives the same results.
Explanation:
For more reliable results in an experiment it must be repeated multiple times to see if the data is accurate.
Hope it helps! :D
