Answer:
Factors that cause population growth include increased food production, improved health care services, immigration and high birth rate. These factors have led to overpopulation, which has more negative effects than positive impacts.
Explanation:
I don’t wanna know that I’m sooo weird I don’t wanna know how
Babies typically do not show social smiles
until four to six weeks of age.
Any smiling before that time, it may not be deliberate. It's usually only a sign that the baby is
comfortable, either they just urinated or they just ate.
At
first, the baby smiles at every one but after
several months, most babies save their smiles for people they know.
Ans.
In some organisms, such as crocodiles, lizards, and turtles, gender determination is affected by temperature. In turtles, the eggs become female when the temperature is higher, while eggs become male when temperature is less than that of required by female development.
Thus, to hypothesizes that the gender determination in turtles is affected by temperature, 'the scientist should expose different groups of turtles to different sets of temperatures in a laboratory.'
