Living Things
A student grouped a dolphin, jellyfish and crab together because they all a. live in the water b. are fish c. lay eggs d. are warm-blooded
a. live in the water
A gene or trait that appears or expresses itself over a recessive trait is called a/an a. influential gene b. mutation c. dominant gene d. chromosome
c. dominant gene
Some organisms require only one parent to make a clone of themselves. What is the name for this type of reproduction? Describe their DNA in comparison to its parent's DNA.
asexual reproduction: it will be an EXACT copy of DNA from the parent
In which form of reproduction will the offspring differ most from the parent?
sexual reproduction
Julia saw a robin raising 2 blue jay chicks. Julia now thinks that it is possible for a robin to be a biological parent to blue jays. Is Julia's assumption correct? a. No, it is not possible because a robin can only pass robin genes on to its offspring. b. Yes, it is possible for one species of animal to give birth to another species. c. No, it is not possible because robins do not like blue jays. d. Yes, it is possible if the robin's mated with a blue jay.
a. No, it is not possible because a robin can only pass robin genes on to its offspring.
in a living organism, a group of similar cells that perform a common function is called _________. a. organs b. tissue c. platelets d. nerves
b. tissue
Does a genetic mutation guarantee that there will be a genotypic change? What about a phenotypic change? Why or why not?
Genotypic: Yes, a letter will be mistakenly copied or deleted, which changes the gene letters in our DNA.
Phenotypic: No, a 1-letter difference may still result in coding for the correct protein, which would not change anything phenotypically. Another reason: many parts of the DNA are never actually read or do anything-- if the mutation happens there, it does not affect anything Phenotypically.
In a certain breed of cats, having black hair is the result of 2 dominant alleles for hair color (HH). The heterozygous genotype (Hh) produces a cat that has black and white spots. Having 2 recessive (hh) genes results in a white-haired cat. The Punnett square below shows the results of a cross between which 2 cats? a. a black cat and a spotted cat b. 2 spotted cats c. 2 black cats d. a spotted cat and a white cat
a. a black cat and a spotted cat
Which type of fossils are found only rarely? a. Complete skeletons b. Teeth c. Bones d. Tracks
a. Complete skeletons
Arial's home is sprayed with a pesticide to control an insect pest. She didn't see any of the insects for a long period of time, but eventually she begins to see insects again. The next time the exterminator sprayed her house, they used the same pesticide, and it had no effect on the insect pest. What is the best way to explain this change in survivorship of the pests' population? a. The original insect population did not pass on their genes to their offspring. b. The insects learned to avoid the pesticide. c. The insects with pesticide-resistant traits survived and reproduced. d. The original insect population ws not very diverse.
c. The insects with pesticide-resistant traits survived and reproduced.
Many organisms, including most animals, are able to move around from place to place. The ability to move around is called locomotion. What advantages does locomotion give to an animal? a. The ability to find food and reproduce b. The ability to reproduce and grow c. The ability to grow and digest food d. The ability to escape danger and find food and shelter
d. The ability to escape danger and find food and shelter
All of these can be inherited by people EXCEPT a. height b. eye color c. blood type d. language
d. language
Both of Tim's parents have brown eyes, but Tim has blue eye. How is this possible? a. The characteristic (blue eyes) is carried in a recessive gene b. Eye color is not a genetic trait. c. This characteristic (blue eyes) must be carried in the dominant gene. d. all of these.
a. The characteristic (blue eyes) is carried in a recessive gene
Widespread use of chemical pesticides has been linked to harmful mutations in many wild chipmunk populations. For a mutation to affect the next generation of chipmunks, it must have altered the genetic code in the chipmunk's a. skin cells b. cardiac cells c. muscle cells d. reproductive cells
d. reproductive cells
Just like animals, plants are made of cells, tissues, and organs. Most plants have all of the following organs EXCEPT a. roots b. leaves c. heart d. reproductive organs
c. a heart
When we breathe-in to sing in music class, our abdominal areas expand, causing air to fill our lungs. Which structure causes our abdominal area to expand? a. pancreas b. trachea c. esophagus d. diaphragm
d. diaphragm
In people, brown hair (B) is dominant over red hair (b). If a husband is Bb and his wife is bb, what is the probability that their first baby will have brown hair? a. 100% b. 50% c. 75% d. 25%
b 50%
The trait or gene that is only expressed when two genes are present is called a/an a. influential gene b. mutation c. recessive gene d. dominant gene
c. recessive gene
How does a warm-blooded animal maintain homeostasis? How is this different in a cold-blooded animal?
warm-blooded: sweating or creating body heat
cold-blooded: cooking down in water/dirt or basking in sun
In a living organism, what is a cell?
the smallest unit of life!
It is the smallest thing that can carry on the activities of life. It is also a building block of all organisms.
Arteries are a major part of which system? a. The Immune system b. The Nervous system c. The Respiratory system d. The Circulatory system
d. the Circulatory system
In some animals brown eyes (B) are dominant over blue eyes(b). Which of these genotypes will complete this Punnett Square? a. bb b. B c. BB d. Bb
d. Bb
A chart that shows the genes in a cross between two organisms is called a/an a. bar graph b. dichotomous key c. punnett square d. cladogram
c. Punnett square
The environment of a particular species of rabbit is becoming colder over time. Rabbits with wich of the following traits will best be able to survive and reproduce? a. shorter legs b. thicker fur c. longer ears d. longer whiskers
b. thicker fur
What happens in march to deer's antlers?
Deer antlers shed every year in march