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7th grade science 8

暂无描述。系统推荐的高质量记忆内容，适合每天坚持背诵学习。

卡片总数: 8 张•内容版本: v3•公开卡包•更新时间: 8/1/2026

卡片预览 (8 张)

#1
正面 (问题)

Embryology

背面 (解答)

The study of embryos and their development

#2
正面 (问题)

Homologous

背面 (解答)

Body parts that are similar in origin and structure

#3
正面 (问题)

Radioactive elements

背面 (解答)

An element that gives off a steady amount of radiation as it slowly changes to a nonradioactive element

#4
正面 (问题)

Sedimentary rock

背面 (解答)

Rock in which most fossils are found; formed when layers of sand, silt, clay, or mud are pressed and cemented together, or when minerals are deposited from a solution

#5
正面 (问题)

Vestigial structures

背面 (解答)

Structures that do not seem to have a function

#6
正面 (问题)

Hominids

背面 (解答)

Humanlike primates and left about 4,000,000 to 6,000,000 years ago and were different from other primates

#7
正面 (问题)

Homo sapiens

背面 (解答)

Direct ancestors of humans

#8
正面 (问题)

Primate

背面 (解答)

Group of mammals to which humans, monkeys, and apes belong