Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Topic 4: Content

QuestionAnswer
Asexual reproduction allows an animal to reproduce fairly quickly. It does not need a mate (member of the opposite sex). This produces identical offspring that cannot tolerate changes in the environment very well.
Sexual reproduction requires sperm and egg to join together, producing offspring with a combination of genetic material from their father and mother. The offspring will not be identical to either of their parents resulting in a greater genetic variation in the offspring.
Inherited Traits eye color and fur color
Acquired Traits language and behaviors
Sexual Reproduction: Due to the greater genetic variation in the offspring, they will have a better chance of adapting to changes in the environment.
Gymnosperms have cones and unprotected seeds
Angiosperms produce flowers and fruit that contain seeds
Pollination When the male sperm cells (called pollen) are transferred to the female reproductive structures.
Gymnosperms are pollinated by the wind.
Some angiosperms are pollinated by wind, but most rely on animals called pollinators.
Color and pleasantly scented petals will help attract pollinators.
Fertilization occurs when the pollen and the egg cell join, which later grows into a seed
Often the scent and color of fruit attract animals to the plant. Animals eat the fruit and deposit the seeds in their droppings in a new location.
It is important that seeds get dispersed in new locations so that they do not compete with each other, thus increasing their survival rate.
Germination occurs when the seed begins to sprout.
Plants can also reproduce asexually. A single plant can grow from the roots, leaves, or stems of a parent plant, producing many exact copies of itself.
The way an organism reacts to changes in its internal conditions or external environment is behavior.
External fertilization occurs outside the female’s body
internal fertilization occurs inside the female’s body
During external fertilization, many eggs and sperm cells are released so there is a greater chance of more potential offspring.
Mating systems Some animals have a single mate for a period of time, while others have multiple mates at one time
Communication Using sounds, scents such as pheromones, and body movements to attract mates
Competition Using aggression or territory to keep mates.
Parental investment Some species have no contact with their offspring, while others spend many years caring for them until they can be independent. *More advanced animals have longer parental investments.
Cooperative behaviors When species live and work together in groups, which is especially effective to protect their young from predators.
Migratory behaviors Some species migrate to increase their chances of finding a mate
Environmental conditions: Access to resources, size of living space, and exposure to diseases.
Environmental conditions example: the size of a fish tank will affect the size of the fish
Genes: The genes an offspring inherits from its parents are a major factor in how it develops and grows.
Genes example: taller animals will generally have taller offspring
Hormones Produced in animals' bodies and can affect females and males differently
Hormones example: increased production of testosterone in male animals results in males being larger than females
Instinct A response to a stimulus that is inborn and that an animal performs correctly the first time
Instinct example(s): fish swimming, birds building nests, baby turtles going to the ocean after hatching
Created by: mrsbaert
Popular Life Science sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards