How can a scientist know if what he/she is looking at, under the microscope, is in fact a cell? What can mislead us to think we are looking at a cell but in fact we are looking at non-living structures of about the same size?

What determines the genotype of an organism? A. The number of children the organism has B. The foods the organism eats during its life C. The amount of sleep the organism gets D. The alleles that are passed from parents to offspring

Can the depth of a body of water influence what lives there

Each member of a class sampled a piece of PTC testing paper. Thirty people sampled the chemical. Twenty persons were tasters. How many had heterozygous genes? 10 20 0-20 indeterminate

Which of the following is not cited as an environmental drawback to the development of aquaculture worldwide? a. Aquaculture often leads to overexploitation of marine organisms. b.

Retrieve your animal tissue specimens. If you have an Edmentum lab kit, your specimens are frog skin, human cardiac (heart) muscle, and human red blood cells.

A new organism is discovered in the forests of Costa Rica. Scientists there determine that the polypeptide sequence of hemoglobin from the new organism has 72 amino acid differences from humans, 65 differences from a gibbon, 49 differences from a

How can evedince from an experiment be explained in a relationship to the hypothesis

The primary function of basal transcription factors is to

Why is it difficult to find the ideal light intensity if the temperure were very hot or cold?

If a population of deer exceeds its carrying capacity, it is likely that the population will crash. population will become extinct. carrying capacity will increase. birth rate will increase.