Observing animal tracks is an example of

observation, which is used to estimate population size.

A. mark and recapture

B. indirect

C. sampling

D. direct

Use dimensional analysis to determine the number of kilograms in 74 pounds. (Hint: 1 kg = 2.2 lbs) A.

Which of the following is a chemical property? A. hardness B. flammability C. state

Describe how a scientist using the phenic system would classify an organism.

Which of the following does not occur during mitosis? a. condensation of the chromosomes b. dna replication c. separation of sister chromatids d. spindle formation

An "x"-shaped chromosome is made from two identical chromatids. true false

Paleontologists can definitively conclude whether dinosaurs were endotherms. a. True b. False

What is thethe protein-assembly factories of the cell, are present in prokaryotic cells, animal cells, and plant cells.

Cells harvest the energy in organic compounds to make ATP through a process called

In the 1950s, when Watson and Crick were working on their model of DNA, which concepts were well accepted by the scientific community? Select all that apply. (a) - Genes are made of DNA. (b) - Chromosomes are made up of protein and nucleic acid.

Read the following statements that describe how information flows in the nervous system. What is the correct order in which they occur? 1) Response is carried to glands or muscles. 2) Information is gathered.