The cells that develop to form the outer lining of an animal's body make up the _[blank]_.

blastula

endoderm

ectoderm

mesoderm

What is the role of the gizzard in bird digestion? a. to store food for easy means of regurgitation to offspring b. to chemically digest food c. to store gastroliths that physically grind up food d. to produce saliva to start the digestive process

If an organism diploid 8 chromosomes how many chromosome do it haploid cell contain

Which ocean has the greatest average depth

A region with a variety of organisms like tiger, fish, rabbits, birds, insects, etc., have a high level of genetic diversity species diversity ecosystem diversity none

When stopped at railroad crossing with multiple tracks cross?

The taxonomic classification category that contains the least number of different organisms is __. family species kingdom domain Biological Taxonomy is the science of a.) naming everything b.) comparing the molecular clocks between organisms c.

Tyrrell wanted to measure the growth of tomato plants in response to different types of fertilizer. Which tool would be most accurate?

In guinea pigs, black fur is dominant and white fur is recessive. A homozygous dominant black guinea pig is bred with a homozygous recessive white guinea pig. The dominant allele is represented by F, and the recessive allele is represented by f.

Is Antares or vega hotter than the sun

How do levels of acid rain and so2 emissions relate to each other