Producers are living organisms that enables the production of food or is able to produce their own food through the photosynthetic mechanism of their structures which has helped many organisms survive.
This is because there is not enough sunlight and air which are needed for the producer to make food.
Answer:
A praise for lysosomes is that they are responsible for participating in the action of the lysosmic enzymes that they contain within, these enzymes before the destruction of phagocytosed microorganisms by the antigen presenting cells.
Explanation:
In other words, they are a perfect machinery to trigger an ideal immunological response to a specific pathogen, since thanks to them they are destroyed inside macrophages, so that they present a characteristic molecule to the lymphoid chain, that is, to the cell chain with immunological memory.
Answer:
To reach and fertilize an egg, sperm must move — wriggling and swimming through a woman's cervix, uterus and fallopian tubes. This is known as motility. You're most likely to be fertile if at least 40% of your sperm are moving.
Explanation:
The main difference between vascular and nonvascular plants is that a vascular plant has vascular vessels to carry water and food to all the different parts of the plant.
Crossing over (exchange of genetic information between regions of non-sister chromatids in the tetrad) occurs in the prophase I stage of meiosis.
<h3>WHAT IS MEIOSIS?</h3>
Meiosis is the process whereby a single cell produces four daughter cells that are genetically different from one another.
Meiosis is able to ensure genetic diversity in the daughter cells due to a process called Crossing over.
Crossing over is the exchange of genetic material between the non-sister chromatids of homologous chromosomes. It occurs in the prophase I stage of meiosis.
Therefore, crossing over (exchange of genetic information between regions of non-sister chromatids in the tetrad) occurs in the prophase I stage of meiosis.
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