Answer:
The correct answer is - 2) density-independent limiting factor.
Explanation:
Density-independent limiting factors are the factors that cause a change in the size of the population without getting influenced by the density of the population.
Density-independent limiting factors include biotic or abiotic factors with catastrophic conditions such as natural disasters such as floods, earthquakes, drought, fires, and many more.
Drought affects the size of the population by increasing competition in the ecosystem for resources.
Answer:
The correct answer is d. IgG
Explanation:
During pregnancy the fetus is attached to the mother body by placenta and IgG is the only antibody which can cross the placenta and reach the fetus. This antibody is very important for an infant to get protection from infections.
Measles is a viral disease that usually infects infants who are not vaccinated against it. Until the vaccination is done the infant is protected by the passive immunity given by his mother through passing the IgG antibody.
This maternal antibody is capable of protecting infants for the first six months of life after which vaccination is required to protect the infant from measles.
The correct answer is cell organelle -Lysosome
Lysosome is small, round, membrane bound cell organelle that contains cluster of digestive enzymes which are capable of break down large food particles such as protein, carbohydrates and lipids into smaller ones. Lysosomes function as the digestive system of the cell. Thus, lysosomes recycle nutrients for the cell.
Explanation:
Kelp forests are the anchor of nearshore ocean wildlife communities across the U.S. West Coast and northeast, sustaining marine biodiversity by providing shelter, habitat and even food for an array of fish and invertebrates.
Answer:
Be reflected back to space.
Explanation: