Answer:
B
Explanation:
Natural selection works by selecting organisms that have unfavorable traits and killing them. However, if all the hydras are identical(from asexual reproduction), then there is no single organism that has a favorable trait over another.
Answer:
Commensalism
It is a +/0 population interaction.
Answer:
<em>The correct option is d) 21 has an extra chromosome</em>
Explanation:
The complete array of chromosomes that an individual possesses is known as the karyotype of the individual. Humans have 46 chromosomes which make up 23 pairs.
In the karyotype shown in the picture, the 21st pair has an extra chromosome. Such a condition is known as Down's Syndrome. In such a person, the mental ability of the person is influenced and he usually suffers from mental disabilities. The facial features of such a person also are different.
Answer:Connective tissue
Explanation: connective tissue are made up of a tissue consisting of living cells and a non-living substance. They are made up of collagen that are proteinous in nature.
Answer:
1. Habitat, 2. Niche, and 3. Tolerance
Explanation:
The tree is a habitat for many organisms such as birds, fungi, and insects in the forest ecosystem as it provides shelter and food. Habitat can be understood as the address of an organism,
Fungi are saprophytic energy that obtains energy from the dead organic matter that presents on the tree, which is the niche of the fungi. Niche is like the job or work of an individual organism.
Fungi can grow in extreme temperature and waterlogging conditions which shows the tolerance of the fungi.