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Biology
A man who is heterozygous for tongue rolling and has a normal vision and a woman who cannot roll her tongue and is heterozygous for colorblindness have a child. What is the probability that it will be able to roll his/her tongue and have normal vision? Tongue-rolling is due to a dominant allele. Color Blindness is caused by an X-linked recessive gene. ...?
Humans have _____. an exoskeleton jointed appendages segmentation no coelom
Which of the following best describes how a cell's DNA can change through mutations? Segments of DNA from degraded prokaryotic cells are taken up and incorporated into the DNA of living cells. A virus transfers a DNA segment from one bacterial cell and inserts it into another. A bridge-like connection forms between two prokaryotic cells, allowing genetic information to be transferred. Changes in a cell's DNA sequence occur during replication and are passed on to daughter cells.
Why would it be pointless for reptiles to incubate their eggs by sitting on them like birds? Reptiles are ectotherms and cannot increase their body temperature above the surrounding environment. Moreover, reptile eggs are not amniotic and lack a shell, so sitting on them could crush them. Additionally, reptiles lack feathers to cushion the eggs and prevent them from bumping into each other. Lastly, reptiles have teeth to defend their eggs from predators, eliminating the need to hide them.
Explain how groundwater can become polluted
When there is a lower concentration of water outside of a plant cell rather than inside a plant cell, the plant will tend to — A: grow toward the sun B: lose water and wilt C: gain water and become rigid D: increase its rate of photosynthesis
What type of rock results from cementation of sediment.
2. Wegener’s idea that tidal forces might cause continental drift was shown to be impossible when it was ____. A. determined that Earth’s magnetic field was too strong B. shown that the tidal forces needed to move continents would stop Earth’s rotation C. determined that Earth’s density was too low D. shown that no tides occurred 200 million years ago
Give an example of a limiting factor that determines the turtle population
Question 121 ptsSome mammals, such as the giraffe, eat plants. Other animals, such as the leopard, eatmeat. Still other animals, such as these monkeys eatO AnimalsNone of the abovePlants and animalsPants
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