During times of sexual arousal, the sperm leave their storage area and travel into long tubes called the

erectile tissue

seminal vesicles

vas deferens

fallopian tubes

Prenatally, how many nerve cells were formed in your brain per minute?

A biologist originally marked 40 butterflies in Wilson Park. Over a month-long period butterfly traps caught 200 butterflies. of those 200, 80 were found to have tags.

Which of the following components is NOT part of the modern cell theory? A) All cells arise from preexisting cells. B) Bacteria are examples of eukaryotic cells. C) All living organisms are made up of one or more cells.

Habitat separation in the ecosystem due to human development is called A. habitat degradation. B. habitat destruction. C. habitat fragmentation. D. habitat loss.

Why are the terms dominant and recessive misleading?

What best describes the alternation of generations? 1. meiosis produces a diploid zygote 2. a gametophyte is a diploid phase 3. a gametophyte is a haploid phase

Along with plants and algae, in which organisms can photosynthesis occur?

In asexual reproduction, the offspring are similar, but not identical, to the parents. True False

All of the following are pyrimidine nucleic acids except: A. Thymine B. Guanine C. Cytosine D. Uracil

How studying a footprint of an animal that living long ago can tell us more about the animal?