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AleksAgata [21]
3 years ago
10

Choose a mammal in each group, monotreme, placental mammal, and marsupials. Write a paragraph description of each mammal and inc

lude a drawing of the mammal.
Biology
1 answer:
MrRa [10]3 years ago
7 0

Answer:

a primitive mammal that lays large yolky eggs and has a common opening for the urogenital and digestive systems. Monotremes are now restricted to Australia and New Guinea, and comprise the platypus and the echidnas.

Explanation:

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I am pretty sure it is shearing teeth

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3 years ago
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What is mitosis and meiosis?
yuradex [85]

Answer:

There are two types of cell division: mitosis and meiosis. Most of the time when people refer to “cell division,” they mean mitosis, the process of making new body cells. Meiosis is the type of cell division that creates egg and sperm cells. Mitosis is a fundamental process for life. Mitosis is the division of a cell into two daughter cells that are genetically identical to the parent cell. Meiosis is the division of a germ cell into four sex cells (e.g. egg or sperm), each with half the number of chromosomes of the parent cell.  Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for sexual reproduction. Meiosis begins with a parent cell that is diploid, meaning it has two copies of each chromosome. Mitosis gives two nuclei, and hence two cells, while meiosis gives four. Mitosis gives identical cells to each other and to the mother cell, while meiosis leads to genetic variation due to crossing over and independent assortment. Mitosis includes one division, while meiosis includes two.

5 0
3 years ago
Eric and dawn are discussing drug distribution in the body. eric says that a drug travels from the absorption site to the bloods
Nuetrik [128]
Dawn is correct. 

When drugs are absorbed, it goes into the blood stream plasma. From there it will first go into the interstitial fluid. It will accumulate in the interstitial fluid and cross the membrane of the cell, then to the tissues, and lastly the organs. 
7 0
3 years ago
how does the human circulatory system, digestive system, and respiratory system work together to keep cells alive? Answer in com
Anna71 [15]
The circulatory system is mainly made up of the heart and the blood vessels. It is closely related to the respiratory system which is primarily made up of the lungs. The digestive system is primarily made up of the gastrointestinal tract. This simply means your mouth, esophagus, stomach, small and large intestines, and rectum up until your anus. All the cells in the human body are kept alive by these systems working together in harmony.

The heart pumps blood throughout the whole body via the blood vessels. Blood, particularly red blood cells (RBC), carry oxygen and nutrients inside of them and release them to the other cells in the body. Oxygen comes from the lungs in the respiratory system every time we breathe in air. Nutrients come from the digestive system after food has been broken down to small components that can be utilized by the cells in the body.
8 0
3 years ago
Whats their contribution to the Theory of Evolution
Olenka [21]

Answer:

Darwin is the correct answer of it

What is Darwin's Theory of Evolution? ... The theory of evolution by natural selection, first formulated in Darwin's book "On the Origin of Species" in 1859, is the process by which organisms change over time as a result of changes in heritable physical or behavioral

5 0
3 years ago
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