Free Printable WorksheetScienceGrade 7Science CurriculumSCI.7.22

7.22 Animal Reproductive Behaviors and Success Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Grade 7 Science worksheet provides structured practice on 7.22 Animal Reproductive Behaviors and Success. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Animal Reproductive Behaviors and Success - Which behavior most likely increases an animal’s reproductive success in the described environment? (NGSS MS‑LS1‑4)

Whether you are an educator preparing classroom handouts, a tutor reinforcing weekly topics, or a parent supporting homeschool learning, this printable resource gives students the deliberate practice required to achieve subject fluency and master state standards.

Grade

Grade 7

Subject

Science

Domain

Science Curriculum

Formats

PDF & DOCX

Sample Practice Problems

Preview the types of problems and questions covered in this worksheet

Below are sample questions representative of the exercises included on this worksheet and related 7.22 Animal Reproductive Behaviors and Success skill assessments:

Problem 1Difficulty: Mastery

In a fish species, eggs develop faster in warmer water but also have a higher risk of deformities if temperatures are too high. Cooler water slows development, increasing time exposed to predators.

Which nesting behavior most likely maximizes reproductive success?

ALay eggs on dry land to avoid temperature effects.

BSelect an intermediate-temperature site that speeds development without causing frequent heat damage.

CAlways choose the hottest possible water regardless of deformity risk.

DAlways choose the coldest possible water even if predators have more time to eat eggs.

Solution & Explanation:Both extreme heat and long exposure can reduce survival. An intermediate environment balances faster development with healthy embryos.

Problem 2Difficulty: Mastery

A bird species has limited nesting cavities. Some males try to attract two females to the same territory (polygyny). When this happens, the second female receives less male help, and her chicks often die. "

Which female behavior most likely increases reproductive success in a cavity-limited environment?,A. Choose the territory with the least food so chicks grow slowly. | B. Prefer males that already have a mate

Aeven if she becomes a second female.

BLay eggs outside the cavity where they are exposed.

CAvoid mating with already-mated males and choose a male that can provide enough care for one nest.,D,If male help is needed

Solution & Explanation:answer choices

Problem 3Difficulty: Mastery

A fish species shows ‘cryptic female choice’: after mating, females can bias which male’s sperm fertilizes eggs. In this habitat, parasite infection varies widely among males.

Which female response most likely increases reproductive success?

AChoose sperm randomly even when parasite differences are clear.

BAlways bias fertilization toward the most infected males.

CPrevent any fertilization so no eggs develop.

DBias fertilization toward sperm from low-parasite males, improving offspring health and survival.

Solution & Explanation:If parasite load affects offspring viability, favoring healthier males can produce stronger offspring. More surviving offspring increases reproductive success.

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Frequently Asked Questions

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QIs this 7.22 Animal Reproductive Behaviors and Success worksheet free for teachers and homeschoolers?

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QWhat grade level and standards does this worksheet align with?

This worksheet is designed specifically for Grade 7 Science students. It aligns with educational standard SCI.7.22 (Grade 7 science practice focused on animal reproductive behaviors and success.).