Answer:
Blood vessels (Veins)
Explanation:
Blood vessels are vessels in the human body that helps in the circulation of blood being pumped from the heart.
There are five types of blood vessels namely:
Arteries: helps in carrying oxygenated blood away from the heart to other parts of the body.
Veins: helps in carrying deoxygenated blood back to the heart.
Capillaries: are tiny vessels that connect the venules to arterioles, they allow nutrients from the blood to pass into the body tissues and also waste products from body tissues pass into the capillaries.
Venules: collects blood from the capillaries and sends it to the veins.
The separation of the sister chromatids occurs during Meiosis II because during Meiosis I occurs the separation of homologous chromosomes.
<h3>What is Meiosis I?</h3>
Meiosis I is the first cell division stage during the meiosis, which is a process that has as objective to generate four daughter cells having half the genetic material.
Meiosis has two successive rounds of cell division which are known as Meiosis I and Meiosis II, and these major stages can also be classified into sequential substages (i.e., Prophase, Metaphase, Anaphase, and Telophase). Before Meiosis, the genetic material is duplicated during the synthesis (S) phase of the cell cycle.
Homologous chromosomes are composed of two sister chromatids that separate during Anaphase II (Meiosis II).
In conclusion, the separation of the sister chromatids occurs during Meiosis II because during Meiosis I occurs the separation of homologous chromosomes.
Learn more about Meiosis here:
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Hello. This question is incomplete. The full question is:
"Drag the terms on the left to the appropriate blanks on the right to complete the sentence. Terms may be used more than once.
1- free water
2- Solute
During osmosis, water diffuses across a selectively permeable membrane from the region of higher _______ concentration and lower _____ concentration to the side with lower _______ concentration and higher _______ concentration
.
Answer:
During osmosis, water diffuses across a selectively permeable membrane from the region of higher free water concentration and lower solute concentration to the side with lower free water concentration and higher solute concentration
Explanation:
Osmosis is a biological process that takes place in cells and allows a substance to pass through the plasma membrane. Through osmosis, the plasma membrane, water can pass into and out of the cell through a gradient of solute concentration, that is, water passes from the place with the lowest concentration of solute to the place with the highest concentration, allowing thus the balance between the inter and extra cellular medium.
Answer:
Evolution occurs about 6 million years ago.
Explanation:
The mammoth evolved from the common ancestor because evolution occurs about 6 million years ago. The modern elephants and woolly mammoths share a common ancestor and they are split into two separate species about 6 million years ago due to change in genetics as well as environment that leads to the evolution in the elephants.
Answer:
DNA is made of chemical building blocks called nucleotides. These building blocks are made of three parts: a phosphate group, a sugar group and one of four types of nitrogen bases. To form a strand of DNA, nucleotides are linked into chains, with the phosphate and sugar groups alternating.
