Biology, 13.06.2021 03:20 nessross1018
Read through the experiment below and answer the questions that follow:
Scarification is a process that scratches up the surfaces of seeds that pass through the guts of birds. A student wanted to see if scarified seeds grew better than those that were not scarified. He simulated scarification by rubbing 20 cherry seeds with sandpaper. Another set of 20 cherry seeds were left alone. The student planted each of the seeds into separate pots and gave them the same amount of water daily. The pots were placed in a location with a constant temperature of approximately 25 degrees C. The number of seeds that germinated each group was recorded daily for three weeks.
Which is the control group?
Which is the experimental group?
What is the independent variable?
What is the dependent variable?
Name at least one controlled variable?
Was quantitative or qualitative data collected?
Answers: 3
Biology, 21.06.2019 15:30
Sammi is studying the interaction of the digestive and circulatory systems in the human body. she has listed various processes that occur in each of the systems. put the processes in order to describe the interaction between these two systems. tiles nutrients diffuse through the villi of the small intestine.digestive processes break nutrients down in the mouth, stomach, and small intestine.blood is pumped through the circulatory system to deliver nutrients to other organs.nutrients are ingested at the mouth.nutrients enter the capillaries of the circulatory system. sequence
Answers: 2
Biology, 22.06.2019 07:30
Which locations on the map are low-pressure areas? a b c d e
Answers: 1
Biology, 22.06.2019 13:30
During the process of blank and molecules such as a glucose must use a protein channel to cross through a cell membrane
Answers: 1
Biology, 22.06.2019 21:00
True or false: the ribosome reads the sequence of codons in mrna.
Answers: 2
Read through the experiment below and answer the questions that follow:
Scarification is a process...
Mathematics, 23.05.2020 10:58
Mathematics, 23.05.2020 10:58
Mathematics, 23.05.2020 10:58
Mathematics, 23.05.2020 10:59
Mathematics, 23.05.2020 10:59
Mathematics, 23.05.2020 10:59