Why is it important for egg and sperm cells to join in fertilization? Why can't an egg or a sperm cell alone develop into a new individual?

Azotobacter is a genus of bacteria that live in soil and have the following characteristics: a. They are bacilli. b. They are gram-negative. c. They are obligate aerobes. d. They can fix nitrogen.

Why preservation of animals in sea is best as compared to preservation in land?

This element is found in all living things. It is recycled when organisms die. It is transformed from one form to another through photosynthesis and cellular respiration. That element is

The energy input into an ecosystem can come from a. sunlight b. chemical compounds C. soil d. A and B

The cell cycle a. includes mitosis as an event. b. includes only the stage G1, S and G2. c. is under cellular, but not under genetic, control. d. involves proteins but not chromosomes

All energy is any ecosystem starts as

This earth layer forms the solid tectonic plates

Explain how conversion of a normal somatic cell into a malignant one requires multiple mutations.

When a limp piece of celery is placed in pure water, the celery becomes crisp and stands upright. Which process explains what happens to the celery? OA. Osmosis OB. Active transport OC. Facilitated diffusion OD. Endocytosis

In humans, having freckles is dominant over not having freckles. Neither Maya nor her husband Rich has freckles. What is the probability that their daughter will have freckles? 100% 75% 25% 0%