The placenta forms from the combination of fetal tissue and tissue from what structure?

When was the yeti crab first discovered? A. 1794 B. 1862 C. 1933 D. 2005

Two heterozygous white (brown fur is recessive) rabbits are crossed. List the parent genotypes, draw and fill in a punnett square, and list the offspirng genotypes and phenotypes

What animals live in photic zone?

Animals that have been exposed to hazardous materials present no danger to people. a. true b. false

In what aquatic zone does organic matter accumulate? A. Aphotic zone B. Benthic zone C. Photic zone D. Twilight zone

In a plants stem the vascular tissue is A. is always arranged in rings of vascular bundles B. is continuous from the roots to thel leaves C. carriers nutrients up the stem but not down D. plays a role in photosynthesis and storage.

During which stage of sex cell formation does the number of chromosomes decrease from diploid (2n) to haploid (n) ? a. prophase 1 b. prophase 2 c anaphase 1 d. anaphase 2

What would most likely interest an environmental scientist

Do you believe you have a personal responsibility to protect the environment

What happens to the total charge of the compound after the ions bond together?