Question

circle the words or phrases that correctly complete the sentence.

1. carolina saw a picture showing fish in a group, and as she looked at the image, she realized what was occurring as shes recently learned about it in class.

this image is an example of {survivorship / courting behavior / external fertilization / internal fertilization}, where the eggs that get fertilized will {have a few that survive / all grow to adulthood / develop outside the females body / develop inside the females body}.
use the information below to answer questions 5 and 6.
daniel reads about survival and reproductive strategies of animals. he is surprised at the complexity of behaviors different kinds of animals practice. he is especially interested in the musk ox.
circle the words or phrases that correctly complete the sentence.

1. a group of musk oxen protects their young by forming a cirice around them. the adult oxen stand with their heads outward to face an enemy. the young remain protected within the circle.

this is an example of a {migratory behavior / cooperative behavior / fertilization strategy / herd instinct} in which the musk oxen help protect the {habitat / mates / offspring / food} of the other group members.

Explanation:

• For question 4:
• External fertilization: In external fertilization, eggs are fertilized outside the female's body. Fish often release eggs and sperm into the water for fertilization.
• Develop outside the female's body: This is a characteristic of external fertilization.
• For question 5:
• Cooperative behavior: The musk oxen working together (forming a circle) to protect their young shows cooperation.
• Offspring: The young (offspring) are the ones being protected within the circle.

Answer:

1. external fertilization, develop outside the female’s body
2. cooperative behavior, offspring