Biology Questions & Answers

k kannst erklären, dass alle Lebewesen Luft zum Atmen brauchen. Gust hauphächlich besteht.

a) Los cambios o transformaciones en la naturaleza suelen ir acompañados de cambios de energía.

3. Which prediction best shows what the population could look like after many generations? What caused \( i \) Prediction 1 is best. Two hummingbirds with short or medium beaks had a baby with a mutation in for the long-beak trait. Because long-beak hummingbirds are more likely to survive, that baby surv enough to pass on its mutation, so the long-beak trait became more common over generations. Prediction 1 is best. Hummingbirds with long beaks are more likely to survive, so hummingbirds with and medium beaks began to have offspring with a mutation in its genes for the long-beak trait so tha offspring would have a better chance to survive. Prediction 2 is best. A hummingbird could have been born with a mutation in its genes for the long-be and lived for a little while. Because long-beak hummingbirds are more likely to die, it would have been likely to die before it had any offspring, so the final population will only have medium or short beak hummingbirds.

For her experiment, Orane places 1,100 bacteria in a petri dish, and the logarithmic equation \( t=8 \log _{2}\left(\frac{P}{1,100}\right) \), where \( t \) represents time in hours and \( P \) represents number of bacteria, Orane estimates that the number of bacteria will reach 6,500 in about 20.5 hours. Determine if Orane's estimation is reasonable. Option \#1: reasonable Option \#2: extraneous (1 point) The best response is Option \#

A rare species of fish has been found in the Everglades. Scientists have relocated the fish into a protected area. The population, \( P \) of the school of fish \( t \) months after being moved is given by: B. What will the population be after 5 years? Round your answer to the nearest hundred fish.

Una población inicial de bacterias es de 200 y se 25 puntos duplica cada 3 horas. ¿Cuál será la población después de 9 horas? 800 1600 1200 1000

A rare species of fish has been found in the Everglades. Scientists have relocated the fish into a protected area. The population, \( P \) of the school of fish \( t \) months after being moved is given by: \[ P(t)=75\left(\frac{1+0.5 t}{2+0.01 t}\right) \] A. How many fish were found initially?

Which of the following changes takes place during the first trimester of a woman's pregnancy? A. The fetus begins rhythmic breathing movements. B. The fetus develops toenails, lips, and eyelashes. C. The placenta attaches to the mother and nourishes the growing fetus. D. The mother feels the fetus move for the first time.

Crecimiento exponencial de \( { }^{*} 25 \) puntos una célula: Una célula se divide cada 4 horas, empezando con 1 célula. ¿Cuántas células habrá en 12 horas? 4 8 16

Due to biomagnification, a pollutant becomes more concentrated within the tissues of organisms at higher trophic levels. True False