Which plants first developed a circulatory system?

a.

Mosses

c.

Ferns

b.

Worts

d.

Horsetails

Will give brainliest! Every parent parent has 2 alleles for every trait. However, the alleles separate during meiosis and only one allele is passed on to the child from each parent.

Who invented sperm? Asking for a friend

Which of the following is a requirement for a population to be in Hardy-Weinberg equilibrium? A. Immigration must outpace emigration. B. One allele must provide a benefit. C. No mutation can take place. D. The population must be very small.

Euglena use which structure for movement

Which of the following organisms are prokaryotes? plants bacteria animals fungi

What ultimately controls the cell's production of proteins? A. DNA B. RNA C. protein D. allele

10. Briefly explain the secondary structure of a protein.

Which statement regarding fermentation is false? a. Fermentation produces lactate in heavily exercising muscle. b. At least one form of fermentation requires an enzyme with a thiamine pyrophosphate coenzyme. c.

there are four trophic levels in a food chain: Algae, salmon, bears and humans. if algae produce 6500 kj of energy, calculate the amount of energy that is passed on to each trophic level

Animal cells are permeable to water and urea but NOT to sucrose. The inside of a cell contains 1 M sucrose and 1 M urea and the outside 1 M sucrose and 2 M urea. After the system reaches equilibrium, what changes are observed?