Answer:
The correct answer will be option-true.
Explanation:
Biodiversity hotspots are the regions which can be identified by a high level of endemism and high level of habitat loss. The concept of the hotspot was given by the British ecologist Norman Myers in 1988 when he observed such areas.
Since a region to be established as a biological hotspot fulfils two criteria:
1. Area should have at least 1500 unique vascular plant species found nowhere on Earth
2. Should have lost at least 70% of its native vegetation
Therefore, a scientist identity a hotspot by counting a number of endemic species and option-true is the correct answer.
Answer:
The structure of a DNA molecule is a double helix, like 2 ladders twisting. These helix's are made of sugar phosphate groups, making the backbone of the molecule. On the inner area of the molecule, you have bands. These bands are adenine, thymine, cytosine, and guanine. According to Chargoff's rule, for every pair there is another- specifically, if there's an adenine base, you have to connect it to thymine, and vice versa. If there's guanine, it has to connect to cytosine. These bases are nitrogenous, and the molecule in general is made of nucleotides. Each nucleotide contains a sugar group, a phosphate group, and a nitrogenous base. The order of the bases determines the information in the DNA.
Hope this helps
Explanation:
All cells have cell membranes, and the membranes are flexible. So animal cells can have various shapes, but plant cells only have the shapes of their cell walls. That's nice for plants, because it gives them the ability to grow up and out, where they can get lots of sunlight for making their food.
Illness and disease is the answer
Answer:
True, but not gonna lie, that is my best subject
Explanation: