The correction option is B. The plants that belong to phyllum anthophyta are heterosporous, that is, they produce both male and female reproductive organs separately. Fruits grow when the male gamete fertilizes the female ovary. Their fruits are always fleshy with seeds inside them. A good example of a plant that belong to this phylum is pawpaw.
They observe it, run tests on many different things, and do expirments
Answer:
No. They will need to repeat their experiment several times, since the weather and times were different both days.
Explanation:
When a scientific experiment is conducted, one independent variable shall be changed in each experiment at a time so that the results of the experiment are authentic and we can easily determine which independent variable caused a change in the dependent variable.
If more than one independent variable is changed in the same experiment, then it will be difficult to interpret that which variable caused the change.
<u><em>Similarly, Maria and her brother need to repeat their experiment several times with just changing one variable at a time. </em></u>
José probably doesn't feel any pain because his body, during and after exercise released endorphins which are endogenous opioids. This endorphins promote a sense of satisfaction and pleasure, and make pain and discomfort feel irrelevant.
B Nature selection for traits the allow for increased rates of reproduction and survival over traits that don't, is correct.
A is also correct
