Enzymes are biological catalysts. Catalysts lower the activation energy for reactions. The faster the rate enzymes speed up reactions by lowering activation energy
Sexual reproduction occurs in the flower of flowering plants. Male gametes are produced in anthers of the flower and are found in pollen. Female gametes are produced in the flower’s ovary and are found in ovules.
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Answer:
How Much does the earth weigh?
5.972 × 10^24 kg
How far away is the sun?
92.351 million mi
What is a black hole?
A black hole is a place in space where gravity pulls so much that even light can not get out.
How do airplanes fly?
Four forces keep an airplane in the sky. They are lift, weight, thrust and drag. Lift pushes the airplane up. The way air moves around the wings gives the airplane lift.
How are rainbows made?
A rainbow is caused by sunlight and atmospheric conditions. Light enters a water droplet, slowing down and bending as it goes from air to denser water. The light reflects off the inside of the droplet, separating into its component wavelengths--or colors
Explanation:
Answer:
D.
Explanation:
When an arrow points from a seal to a shark it means the shark is recieving energy from that seal. (By eating it.)
Answer:
biological process by which new individual organisms are produced
