Which of the following describes fertilization?(1 point)
Responses
The process of pollen moving from place to place.
The process of pollen moving from place to place.
When a sperm cell and egg cell come together.
When a sperm cell and egg cell come together.
When an animal is attracted to a flower.
When an animal is attracted to a flower.
The changes that occur in organisms over time.
When a sperm cell and egg cell come together.
Which behavior is both territorial and used for courtship?(1 point)
Responses
baring teeth as a sign of aggression
baring teeth as a sign of aggression
sparring or wrestling using antlers or horns
sparring or wrestling using antlers or horns
defending a nest from predators
defending a nest from predators
dance rituals with potential partners
dance rituals with potential partners
dance rituals with potential partners
Why do courtship behaviors usually happen in response to seasonal changes? (1 point)
Responses
to ensure that mating happens in optimal survival conditions
to ensure that mating happens in optimal survival conditions
to ensure that offspring do not interfere with migration season
to ensure that offspring do not interfere with migration season
to ensure that offspring are born in optimal survival conditions
to ensure that offspring are born in optimal survival conditions
to ensure that mating does not interfere with migration season
to ensure that offspring are born in optimal survival conditions
How does hibernation help animals survive? (1 point)
Responses
Hibernation makes access to food easier.
Hibernation makes access to food easier.
Hibernation protects the animal young from predators.
Hibernation protects the animal young from predators.
Hibernation reduces the energy required for survival.
Hibernation reduces the energy required for survival.
Hibernation increases the chances of meeting a mate.
Hibernation reduces the energy required for survival.
You notice a plant in your front yard. The plant’s flowers are bright red and tube shaped. Upon closer inspection, you realize that the plant also contains nectar. What is a likely pollinator for this plant?(1 point)
Responses
a bee
a bee
a hummingbird
a hummingbird
the wind
the wind
an ant
a hummingbird
Which of the following is the overall goal of all territorial behavior?(1 point)
Responses
to impress mates in order to reproduce
to impress mates in order to reproduce
to gain resources to increase success
to gain resources to increase success
to maintain access to a particular type of environment
to maintain access to a particular type of environment
to defend food sources for personal use
to maintain access to a particular type of environment
Birds use courtship behaviors to attract a mate, which improves their reproductive success. Which courtship behavior also improves their chances of survival?(1 point)
Responses
Male sage grouse, normally camouflaged by their dull coloring, dance and call out in the open to attract nearby females.
Male sage grouse, normally camouflaged by their dull coloring, dance and call out in the open to attract nearby females.
Male mockingbirds can sing 200 different songs, mocking sounds around them in order to attract females and defend their territory.
Male mockingbirds can sing 200 different songs, mocking sounds around them in order to attract females and defend their territory.
Male golden eagles dive at nearly 200 miles per hour and catch sticks in midair as an elaborate courtship and territorial display.
Male golden eagles dive at nearly 200 miles per hour and catch sticks in midair as an elaborate courtship and territorial display.
Male birds with bright colors have to preen frequently in order to maintain their feathers and keep pests away so they can attract mates.
Male sage grouse, normally camouflaged by their dull coloring, dance and call out in the open to attract nearby females.
Which statement is true?(1 point)
Responses
Ladybugs have only a few offspring, while humans have many.
Ladybugs have only a few offspring, while humans have many.
Humans expend energy and time to care for offspring, while ladybugs do not.
Humans expend energy and time to care for offspring, while ladybugs do not.
Both ladybugs and humans expend energy and time to care for their offspring.
Both ladybugs and humans expend energy and time to care for their offspring.
Both ladybugs and humans have only a few offspring
Ladybugs have only a few offspring, while humans have many.
9/4 divided by 1/6=
5 3/4 x 1/4=
9/4 divided by 1/6 = 27/2
5 3/4 x 1/4 = 23/16
-2/3x5/6-3/18+2/9
To solve the expression -2/3x5/6-3/18+2/9, we can follow the order of operations, which is typically done as follows:
Step 1: Simplify any multiplication or division from left to right.
Step 2: Simplify any addition or subtraction from left to right.
Let's calculate -2/3x5/6 first:
-2/3 x 5/6 = (-2 x 5) / (3 x 6) = -10/18.
Now let's simplify the whole expression:
-10/18 - 3/18 + 2/9 = (-10 - 3 + 4) / 18 = -9/18 = -1/2.
Therefore, the simplified result is -1/2.