Answer:
Ginkgos and Cycads
Explanation:
Gymnosperm plants such as Ginkgos and Cycads have flagellated sperm.
Answer: False.
Explanation:
Nitric oxide(NO) is a signalling molecule synthesised by NO synthase which is a a transmitter in the nervous system. Once it is produced, it diffuses out of the cell and act on nearby cells.
NO have a life time of few seconds and it is extremely unstable and highly reactive, it action is restricted.
The blood vessels uses it to signal the surrounding smooth muscle to relax.
B. An oak tree grows from the seed material in an acorn
There are a few key methods to calculate the rate of photosynthesis. These include:
1) Measuring the uptake of CO2
2) Measuring the production of O2
3) Measuring the production of carbohydrates
4) Measuring the increase in dry mass
As the equation for respiration is almost the reverse of the one for photosynthesis, you will need to think whether these methods measure photosynthesis alone or whether they are measuring the balance between photosynthesis and respiration.
Through air in much the same way as water waves travel through water. In fact since water waves are easy to see and understand they are often used as an analogy to illustrate how sound waves behave.
