Answer:
true
Explanation:
im not quite sure what the answer is but if its true and false then the answer is true
Answer:
an interacting group of various species in a common location
Explanation:
Answer: A. scalp hairs grow constantly throughout life.
Explanation:
Hair is a squamous keratinized epithelium which is consist of multi-layered flat cells. Hair are made up of protein called "keratin".
The statement "scalp hairs grow constantly throughout life" is false because at a particular age or due to several factors scalp hairs stop growing.
Scalp hair growth rate depends on three main factors including sex (female hair grows faster than male), age (hair growth slows with age), and ethnicity (Asian hair grows slower than Caucasian hair).
Scalp hair growth stops because of follicle devitalization when the hair length become two or three feet.
Hence, the correct answer is A. "scalp hairs grow constantly throughout life".
Answer:
The correct answer is - the incorrect separation of this pair of sister chromatids during meiosis II.
Explanation:
Down syndrome is a type of aneuploidy in which the number of the chromosome is not as normal condition as it occurs by inheritance of an extra chromosome. This disorder is usually caused due to an error or in meiosis if the sister chromatids fail to separate during meiosis II in an embryo and leads to three copies of the chromosome instead of two.
This condition is lead to the down syndrome which is one of the most common trisomy case as it results an extra chromosome of chromosome 21.
Thus, the correct answer is - the incorrect separation of this pair of sister chromatids during meiosis II.
