Answer: Antibiotics targets the synthesis of protein, nucleic acid, folate and cell wall.
1. Synthesis of protein; antibiotics binds to either 30s or 50s ribosomal subunits blocking the polypeptide from the exiting the tunnel thus inhibiting a full completion of protein expression or production.
2. Nucleic acid synthesis; Antibiotics also act by inhibiting genetic expression, DNA transcription and replication where DNA makes exact copies of itself, as well as RNA molecules preventing bacterial growth.
3. Cell wall synthesis; Inhibition of cell wall synthesis in microorganisms will prevent it from replication and growth.
4. Folate synthesis; Folic acid also known as vitamin B9 helps in DNA replication and cell division. Folate antagonists such as aminopterin kills bacteria by preventing folic acid production required for DNA replication.
Answer:
The producers-Sea weed-Perform photosynthesis.
The filter feeders- sponges, chiton-eat floating planktons.
Grazers -Snails,mussels feed on- floating planktons.
Carnivores such as sea stars feeds on snails
Explanation:
- The producers are placed at the bottom level in energy pyramid and are prime factor in the aquatic eco system which provides energy and perform photosynthesis with the help of water,sunlight and chlorophyll.
- The filter feeders are those that feeds upon small particles that are present in the water.
- Grazers are those organisms that feeds on producers like phytoplanktons.
- Carnivores are those organisms that feeds on herbivores.
Nitrogen is from the atmosphere is converted into nitrates by nitrogen fixing bacteria such as rhizobium which is found in the root nodules of leguminous crops
Answer:
Primary consumers
They eat the majority of prey
Answer:
C.
Explanation:
Ferns can grow taller than mosses because ferns are vascular plants and mosses are non-vascular. Most plants are vascular, which means they have a system of vessels that transport water and nutrients throughout the plant. For this reason, vascular plants can grow very tall; their vascular tissue moves needed molecules, such as water, all the way to the top of the plant or tree. Mosses, by contrast, are lacking this internal transport system and therefore cannot grow to be tall. They must rely on absorbing moisture directly from their environment and so must remain low to the ground where water is accessible. Mosses must live in moist, damp environments for this reason. Ferns are also found in shady, damp areas because like mosses, they use spores as their method of reproduction. Spores travel through water to unite and reproduce
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