Answer:
Bipedal posture allowed arms to be free to develop and use tools.
Explanation:
Answer:
Mosses and liverworts are lumped together as bryophytes, plants lacking true vascular tissues, and sharing a number of other primitive traits.
Their flagellated sperm must swim through water to reach the egg. So mosses and liverworts are restricted to moist habitats.
Explanation:
Retinol is the form of vitamin A that causes the greatest concern for toxicity.
Hope this helps!
Answer:
The null hypothesis is a general statement that states that there
is no relationship between two phenomenons under
consideration or that there is no association between two groups.
A hypothesis, in general, is an assumption that is yet to be proved
with sufficient pieces of evidence.
