Name______Period______Date______
Week 24 DCA Review Sheet
Cellular Organization
1. Which type of cell has a nucleus and many organelles?
EUKARYOTIC
2. Which body system regulates hormones and growth?
ENDOCRINE
3. Which two systems allow for movement in the human body?
MUSCULAR AND SKELETAL
4. Which is the third system to allow for movement in the body?
NERVOUS
5. All living things are made up of what?
CELLS
6. Which cell organelle produces energy?
MITOCHONDRIA
7. What is made during cellular respiration?
ENERGY FOR CELL PROCESSES ARE RELEASED
Genetics
8. What are traits?
A NOTABLE CHARACTERISTIC, QUALITY OR FEATURE ON A LIVING ORGANISM
9. A DNA molecule contains what set of instructions?
THE INSTRUCTIONS THAT TELL WHAT A LIVING ORGANISM WILL LOOK LIKE. CONTAINS THE GENES.
10. Having a physical trait that is like your parents is inherited or acquired?
INHERITED
11. Which living organisms have mechanisms, or the ability, to transmit, or pass on, genes?
PLANTS AND ANIMALS
12. What type of genes do identical twins possess?
IDENTICAL OR THE SAME GENES
13. Chromosomes hold what information?
THE INFORMATION FOR HEREDITARY TRAITS
14. How many chromosomes are in the human cell?
46
15. How many chromosomes are given by each parent to a human offspring?
23 FROM EACH PARENT
16. What are different forms of genes called?
ALLELES
17. Remembering the bird beak lab, how did having the beak given to you benefit you or make things more difficult?
DEPENDING ON WHAT TYPE OF BEAK YOU HAD, YOU WERE ABLE TO EAT DIVERSE FOODS OR YOU COULD ONLY EAT CERTAIN FOODS BECAUSE THAT IS WHAT YOUR BEAK ALLOWED YOU TO PICK UP. THE BIRDS WHO COULD EAT DIVERSE FOODS WOULD BE ABLE TO SURVIVE BETTER.
18. What determines what an organism will look like?
THEIR GENES
19. When an organism has two recessive alleles for a trait, what trait will show?
THE RECESSIVE TRAIT
20. Sometimes, offspring will look more like one parent from sexual reproduction, because…
THE CHILD GETS TRAITS FROM BOTH PARENTS, SO THEY MAY GET THEIR MOM’S NOSE, BUT THEIR DAD’S CHIN.
21. Breeders of dogs breed to get smaller sizes, like teacup poodles. Explain selective breeding:
TEACUP POODLES STARTED OUT AS REGULAR SIZE POODLES AND THEN THE SMALLEST WERE SELECTED TO BREED, THEN THEIR OFFSPRING’S SMALLEST WERE SELECTED TO BREED, THEN THE PROCESS CONTINUED UNTIL THE “TEACUP” SIZE POODLE WAS BRED. THIS IS SELECTIVE BREEDING.
22. What are the three types of genetic traits?
PHYSICAL, BEHAVIORAL, PREDISPOSITION TO MEDICAL CONDITIONS
Reproduction
23. Sexual reproduction means they _SHARE__ DNA.
24. Asexual reproduction means they _COPY_ DNA.
25. Sex cells, such as sperm and egg meeting result in which type of reproduction?
SEXUAL REPRODUCTION
26. What is the function of the reproductive system?
TO CONTINUE THE SPECIES
27. Sexual Reproduction leads to what type of offspring?
DIVERSE OFFSPRING AND MORE BIODIVERSITY WITHIN A POPULATION.
28. Asexual reproduction leads to what type of offspring?
OFFSPRING ARE IDENTICAL TO THE PARENT, LIKE THE SPIDER PLANTS.
Biodiversity
29. What should humans do with natural resources to make sure that they are not overused?
HUMANS NEED TO DEVELOP METHODS IN WHICH NATURAL RESOURCES ARE USED IN A WAY THAT DOES NOT DECREASE OR DESTROY THEM.
30. What is sustainable use?
A WAY TO CONSERVE NATURAL RESOURCES BY NOT DESTROYING THEM
31. What would happen if the shark population of the ocean increased to too high of a level (carrying capacity), and there weren’t enough food resources?
EVENTUALLY, AT THAT LEVEL THERE WOULD BE TOO MANY SHARKS SEARCHING FOR FOOD AND NOT ENOUGH FOOD TO MAINTAIN THEM SO THEY WOULD DIE OR HAVE TO GO SOMEWHERE ELSE.