Answer:
It needs the spines for protection
Explanation:
The cactus would develop the spines as a form of protection to protect itself from being consumed and to survive longer.
Answer:Answer:
For 1: The correct answer is Model 1, 2, and 4.
For 2: The correct answer is Option 1.
Explanation:
For 1:
An element has 3 subatomic particles: electrons (E), neutrons (N) and protons (P).
Atomic number is defined as the number of protons or number of electrons.
Atoms having same number of protons are same. From the given models, Model 1, 2 and 4 have 2 protons with different neutrons. Hence, these models belong to same element.
For 2:
A compound is defined as a substance in which two or more types of elements combine in a fixed ratio. For Example: is a compound made out of atoms of carbon and oxygen.
Hence, the correct answer is Option 2.
Answer:
Match the items of column 'A' with those of column 'B':
Turbidity
Reduces the light in the water column
Natural pollution
Choose
Nitrates and phosphates
Air pollution
Biochemical demand for oxygen
Contaminants into a natural environment
Chemical fertilizers
Pollution
Floating materials
Industrial wastes
Emissions pollution
Reduces the light in the water column
Concentration of hydrogen pH
Eutrophication
CFCS
New species invasion
Temperature
Harmful algal blooms
Oils fats, and foam
Please answer all parts of th Hypertrophication
Toxicity
Volcanic
In crude oil affect eggs and larvae of fish a
Atomic number
a. Hydrocarbon
Genetically modified organisms are those organisms in which certain gene is inserted to get the desired beneficial results.
Explanation:
A genetically modified organism is an organism or plant altered for beneficial traits which would not have been possible by the traditional mating process or recombination techniques.
Genetic engineering is the technique involved for the construction of gene of interest and inserting them in the host species for getting expressed.
Many fruitful results have come out like a tomato of long shelf life k/a flavr savr.
Apart from molecular techniques used for cloning, CRISPR is the recent innovation which had made it very simple.
The GMOs can solve the food problem of the world as Single-cell proteins and longer shelved life food.
Disease resistant plants can be formed for better yields.
Nutrition level of food can be increased.
Example of GMO are canola, corn, papaya, soy and many animals are also on the list.
Answer:
Increase
Explanation:
When there is enough food there is always excelling Reproduction
