Answer:
The correct Answer is B. Great white sharks have sharp serrated teeth for tearing into their prey.
Explanation:
Answer:
D. Hydropower can harm native aquatic populations.
Explanation:
- Hydropower is the power of water or hydrosphere and is the cheapest and simplest form of energy.
- The hydrosphere is a renewable source of energy and is thus non-polluting but most of the hydropower that is converted into electricity is harmful to the marine and aquatic life forms.
- As it disturbs their habitats and created chemical and physical change in the body of water. Such as depletion of oxygen and enrichment of nutrients.
6CO₂ + 6H₂O = C₆H₁₂O₆(glucose) + 6H₂O
Carbon, hydrogen and oxygen are rearranged.
Answer 1: Option C, heterozygous dominant
Explanation: For example the genotypes of these true breeding white and purple flowers is pp and PP, respectively, then the offsprings would be all Pp. This is a heterozygous genotype and it will express dominant trait only.
Answer 2: Option C, homozygous recessive
Explanation: If the trait is recessive, then it will express only when both the alleles of the genotype are recessive alleles. And this would be homozygous state. For example, 'pp' would be the genotype for white flowers.
Answer 3: Option D, white and red
Explanation: If we want that all offsprings should be heterozygous, then parents should be true breeding, which means homozygous. Here, roan is a heterozygous trait [WR]. So both parents should be homozygous, like RR and WW. Then only all offsprings would be heterozygous.
Bacteria are single-celled organisms, which lack a true nucleus and membrane-bound cell organelles. The bacteria can survive harsh conditions due to:
Energy generating enzymes
Endospores
Cell wall
Cyst
The features of bacteria are:
The primary feature of the bacteria is their ability to develop a cyst, which protects them from unfavorable environmental conditions.
For instance, the prokaryotic organism has a cell wall, which helps them to survive in hypertonic and hypotonic conditions.
Also, the bacteria form endospores that help the bacteria to resist extreme hot temperatures.
The bacteria synthesize cold shock proteins, which help to survive in low temperatures.
Thus, the formation of a cyst, protein synthesis, and endospores are vital for the survival of bacteria in unfavorable conditions.
