A child has a genetic disease, but neither of the child's parents have that disease. How did this child get the disease?
Both parents have a recessive gene that is responsible for the disease.
An animal has long sharp teeth. What does it most likely eat?
meat: because sharp teeth can cut through the meat
What kind of feet would a bird most likely have if it swims in the water?
Webbed
What is an adaptation?
A change a plant or animal makes in order to survive.
What is reproductive success?
Being able to produce offspring who can survive to adult hood.
What gene pairs can create an offspring with a dominant trait?
Two dominant genes DD
One dominant and one recessive genes Dd
What is the difference between sexual and asexual reproduction?
sexual = 2 parents and offspring variations
asexual = 1 parent and cloned offspring
Monarch butterflies and some Canada geese spend summers in Canada and in the Northern United States. When the weather changes, they fly to the Southern United States and Mexico. This is an example of which type of adaptation?
Migration
Why do cactuses have sharp needles?
to stop animals from eating it
Give examples of a male courtship behavior.
Bright coloring, fighting other males, special moves/dances, special sounds, etc.
Draw a Punnett square with 1 parent being PP, and the other parent being pp.
If a bird needs to crack open a hard shell in order to eat a seed, what type of beak would it need?
strong and pointy beak
Why do some birds have similar beaks?
They feed on the same foods.
What type of adaptation keep animals from being seen?
camouflage
Why do male Zebras fight and how does it affect their reproductive success?
They fight for the right to mate with a group of female zebras and for the winner it increases their reproductive success.
Describe the genotype of the PARENTS if 1 parent has brown hair, and 1 parent has blonde hair, and they have 3 children. Two of their children have brown hair, and 1 has blonde hair. Brown hair is dominant, and blonde hair is recessive.
1 parent is Bb, the other is bb
How do long, flexible stems help a plant survive in a pond?
it allows them to move and bend with the current of the water.
Seeds have hard coverings, but berries are soft. If the plants that make berries don’t grow well one year, which individual mockingbirds are most likely to survive?
those with the strongest beaks because they will have to eat seeds with hard coverings
When an environment changes and an animal can no longer find the food or shelter it needs in that location, what can it do to enable its species to survive?
Move/Migrate
Why would a seed be covered in sticky spikes?
To stick to furry animals that walk by, so that the seed can travel and spread the success of the species.
What is the probability of an offspring having crooked teeth if T=straight teeth, and t=crooked teeth?
25%
If the soil in a forest becomes less nutritious for the trees, what will happen to the forest?
The size of the forest will decrease to allow fewer trees to get the full nutrition from the soil.
Plants have various adaptations for survival. Some adaptations protect plants by discouraging animals from eating the flowers. What is an adaptation that protects a rose from animals?
Sharp thorns protect the roses from being eaten.
What is the most important reason for a population to have individual differences?
Differences ensure that some individuals may be able to survive if the environment changes.
Sponges reproduce by budding, how will their offspring compare to the parents genetically?
The parent and offspring should be genetically identical, because this is asexual reproduction.