a good 1
<span>Like land plants, phytoplankton have chlorophyll to capture sunlight, and they use photosynthesis to turn it into chemical energy. They consume carbon dioxide, and release oxygen. All phytoplankton photosynthesize, but some get additional energy by consuming other organisms.</span>
Answer:
Tetanospasmin toxin; Pulmonary embolism
Explanation:
Clostridium tetani produce a toxin called tetanospasmin. Tetanospasmin is the strong neurotoxin that blocks the motor neurons that control the muscles. Which results in stiffness of muscles.
Tetanus toxin ca cause blockage of lung artery (pulmonary embolism) and thus can cause death by:
- Stopping your breathing
- Pneumonia
- Cardiac arrest
D. Low side pressure is high and high side pressure is low
The human foot has two arches, but the chimpanzee foot has only one.
Answer: c
Explanation: Plants and animals need nitrogen to make proteins but they cannot take it in from the air. Because nitrogen is unreactive as a gas, it has to be transformed into a new molecule. When bacteria in the soil takes nitrogen from the air, it becomes nitrates. Finally, it can move through the food chain in this form.
