Many cacti, such as saguaros and barrel cacti, have large stems and no leaves. what function of leaves is taken on by the stems of such cacti?

How are bones part of the circulatory system?

A geologist finds a fossil in a rock layer. the fossil has been dated and the approximate age of the fossil has been placed at 10,000 years old.

Serratia marcescens cells produce a red pigment at room temperature. The red color of the colonies is an example of which of the following? genotype phenotype change in DNA base composition adaptation to the environment

The hysrosphere includes all of the following except. A.) Seas B.) Rivers C.) Gases D.) Groundwater

Describe one limiting factor for the moose population

The visible part of the ear has the ability to stretch significantly, and then recoil back to its original position. Which protein fiber must be present?

Which cellular process takes place in the ribosome that are bound to the endoplasmic reticulum

How are the order of codons determined? The DNA sequence determines the order. The RNA sequence determines the order. The number of genes determines the order.

The emt is appropriately sizing the airway when she measures:

Breeding stock can receive implants true or fakse