Answer: C. A brood chamber is made by bees, but comb foundations are built by humans.
Explanation:
The brood chamber is a natural part of the beehive where the bee workers made cells where these works lay eggs. Here, development of the larvae and pupae takes place. The cells of the brood chamber holds the pollen, nectar and honey which is used to feed to develop the larvae.
Comb foundations are the artificial creation made by humans is a place made from wax which forms the base of the honeycomb. It is used to give the support to the beehive.
B. Stems absorbed water and minerals from soil
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Answer and Explanation: Nondisjunction occurs when sister chromatids are not pulled apart at anaphase II. This will cause both sister chromatids/ homologous chromosomes to be pulled to just one pole of the cell.
Since the anaphase I stage in Meiosis I occurred without errors, this would result in four haploid gametes being produced.
However, two of these gametes will be normal, will have the normal number of chromosomes. The other two gametes would have an abnormal number of chromosomes and be aneuploid. One would have n+1 number of chromosomes, and the other would be n-1.
The correct answer is A.
Animal cells do not have a cell wall.
A cell wall is the rigid, outermost covering of plant cells and is made up of cellulose. It is absent in animal cells. The cell wall is visible under a light microscope.
Animal cells are instead covered by a cell membrane. It is made up of lipids, proteins, and small amounts carbohydrates. It is a thin and delicate structure that can only be seen using an electron microscope.
