Which of the following is considered a megaspore in heterospory?

1. Female Gamete

2. Male Gamete

3. They are the same size

4. None Of The Above

What type of bonds link nucleotides together? ...

Define what a model that shows the feeding relationships between organisms in an ecosystem is

If an athlete takes a direct blow to the head, neck or back during an event, practice or game and becomes unconscious you should always:

Which option correctly describes the function of the different regions in the alimentary canal? A. Mouth - Ingestion Stomach - Digestion Small intestine - Digestion Large intestine - Absorption and egestion B.

Most fertilizers contain ammonia (NH3). Ammonia forms when hydrogen reacts with nitrogen. Which equation correctly represents the chemical reaction that forms ammonia?

What led to the conclusion that single-celled prokaryotic organisms evolved in the absence of oxygen

What happens when you touch something too cold?

It is important for a plant to make a hormone that keeps its seeds dormant. what do you think is the reason?

Explain how traits can be affected by inheritance and the environment?

Do any of the proteins in your plasma come from food proteins