Petri Dish pH of Solution In an investigation to determine the effects of environmental pH on the
germination of dandelion seeds, 25 dandelion seeds were added to each of five
petri dishes. Each dish contained a solution that differed from the others only in
its pH, as shown. All other environmental conditions were the same. The dishes
were covered and observed for 10 days. Using one or more complete sentences,
state the variable in this investigation. Write your answer in ink in the space
provided on your answer paper.
State the dependent variable in this investigation
State a constant in this investigation
State a hypothesis in this investigation.
State a conclusion that can be drawn from this investigation.

Will mark brainliest i only need the ! 1.use ten beads and a centromere of one color to construct the long chromosome. use ten beads and a centromere of a second color to construct the second chromosome in the long pair. make a drawing of the chromosomes in the space below. 2. for the second pair of chromosomes, use only five beads. 3. now model the replication of the chromosomes. make a drawing of your model in the space below. part b: meiosis i during meiosis i, the cell divides into two diploid daughter cells. 4. pair up the chromosomes to form tetrads. use the longer tetrad to model crossing-over. make a drawing of the tetrads in the space below. 5. line up the tetrads across the center of your “cell.” then model what happens to the chromosomes during anaphase i. 6. divide the cell into two daughter cells. use the space below to make a drawing of the result. part c: meiosis ii during meiosis ii, the daughter cells divide again. 7. line up the chromosomes at the center of the first cell, one above the other. separate the chromatids in each chromosome and move them to opposite sides of the cell. 8. repeat step 7 for the second cell. 9. divide each cell into two daughter cells. use the space below to make a drawing of the four haploid cells

Which of these parts of the membrane large moecules pass through it ?

Which is an example of a vestigial structure? a. tail of a monkey b. fin of a fish c. flower of a plant d. tailbone of a human