These are the correct answers to the following questions:
<span>1. Barney and Betty are about to have their first child. They both have "normal" feet but Barney's father has flat feet and Betty has a child from a previous marriage who has flat feet, meaning they are both heterozygous for the trait. What is the probability that they will have a boy with flat feet(recessive trait)?
A.25%
B.50%
C.100%
D.75%
2. humans, the ability to roll the tongue is a dominant trait. The inability to roll the tongue is a recessive trait. If two individuals homozygous recessive for this trait have a child, what is the chance that the child will be able to roll his tongue?
A.100%
B.0%
C.50%
D.25%</span>
Answer:
skin acts as a protective barrier, therefore it does not secrete hormones
Answer:
The water plant
Explanation:
According to this question, Mason performs an experiment where he places a water plant in a test tube of water and turns it upside down in a rack by a sunny window. However, the next day, he observed that there were bubbles in the water as well as in the top of the tube.
These bubbles were actually OXYGEN GAS produced as a result of a metabolic process carried out by the water plant called PHOTOSYNTHESIS. In photosynthesis, which is the process whereby plants synthesize their food in the presence of sunlight, OXYGEN gas is given off as a waste product. The oxygen gas is what was observed by Mason as bubbles. Hence, the bubbles were produced by the WATER PLANT.
The energy from sunlight comes in the form of photons, and this energy is used in the light dependent reactions of photosynthesis. The first function carried out by the photons in energizing electrons in the chlorophyll. The energized electron travels through the electron transport chain and subsequent steps are carried out to utilize this energy to form ATP.
It was probably when the earth was still Pangaea. whatever had those bones came to that spot, and so happen to die there. then others came and died and kept going.<span />