SC.912.L.16.1 DNA and Reproduction
During which phase does dna replication occur?
The S phase. N.A
When a species environment changes and its adaptations are no longer sufficient, the species is most likely to:
Become extinct. I.F
If you wanted to know about how your ancient ancestors look like, what would you study?
Old bones. R.M
What is the smallest unit of life that can exist on its own?
Cell. I.F
A fertilized ovum is called a:
Zygote. I.F
In humans, a cell produced through mitosis contains how many chromosomes?
46. I.F
True or False. Evolution is the way the organisms are able to change their traits and evolve.
True. N.A
What is key evidence for human evolution?
Fossils. R.M
A person shivers when they are cold to maintain a stable body temperature. This process is known as:
Homeostasis. I.F
What is another term for early development?
Embryogenesis. N.A
What is the primary advantage of asexual reproduction?
It allows for rapid population growth. I.F
A cactus storing water in its stem Is an example of:
An adaptation. R.M
Why is mitochondria DNA used in evolution studies?
Inheritance rapidly changes from mother. R.M
Why do organisms need to intake sunlight and food?
To get energy. N.A
Which structure does the blastocyst implant to develop a fetus?
Uterus. R.M
What is the purpose of dna replication?
To produce an identical copy of DNA to each cell before its division. N.A
What must be true for natural selection to occur?
There must be a variation in heritable traits . I.F
Which process was responsible for the heat in Earth‘s early history?
Radioactive decay, meteorite impacts, and gravitational contraction, and volcanic activity. I.F
Polar bears having thick fur is an example of a(n):
Adaptation. N.A
Where does fertilization typically take place in the female reproductive system?
Fallopian Tube. R.M
What holds base pairs of DNA?
hydrogen bonds. N.A
Why is variation important in a population?
It allows individuals to better survive. R.M
What was the composition of the earliest atmosphere on Earth?
Carbon dioxide, water vapor, nitrogen, and little to no oxygen. I.F
Which characteristic of life is demonstrated by a plant growing towards sunlight?
Response to stimuli. N.A
Which structure is responsible for storing sperm while they were mature?
Epididymis. R.M