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Vsevolod [243]
3 years ago
12

If a mammal gives birth to live animals, how is a monotreme a mammal if it lays eggs? This has been confusing me for the past 30

minutes
Biology
1 answer:
natka813 [3]3 years ago
8 0

Answer:

In some ways, monotremes are very primitive for mammals because, like reptiles and birds, they lay eggs rather than having live birth. In a number of other respects, monotremes are rather derived, having highly modified snouts or beaks, and modern adult monotremes have no teeth.

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how do oxygen and carbon dioxide cross from the alveoli through the capillary walls and into the blood?
Fofino [41]

Answer:

The concentration gradient of oxygen in your lungs wants to flow toward homeostasis and oxygen is bound on red blood cells by hemoglobin, along with the attraction of oxygen to hemoglobin. The concentration gradient from carbon dioxide from the capillary to the lungs. There is more oxygen in your lungs (alveoli) than there is carbon dioxide and everything want to reach homeostasis, or level amounts on both sides.

Explanation:

6 0
3 years ago
Si al pesar una tierra en un envase obtenemos un peso de 6.6 gramos. Si el envase vacío pesa 3
maksim [4K]

Answer:

3.6 gramos

Explanation:

a 6.6 le restamos 3 que es el peso del envase para poder solo calcular el de la tierra.

6.6-3=3.6

Espero estar bien y que te haya servido en algo.

7 0
3 years ago
True or false sedimentary rock can form for metamorphic rock that has been uplifted
Hitman42 [59]
False
Sedimetary rocks can be formed from changes in igneous rock, and igneous rock can be from changes in sedimentary rock.
4 0
3 years ago
The contracting and relaxing of the heart is known as the?
kipiarov [429]

Answer:

Cardiac Cycle

Explanation:

Contracting= Systolic

Relaxing=Diastolic

5 0
3 years ago
PLZ HELP ME Question 3
Flauer [41]

Answer:

It's impossible to predict the phenotype of the offspring by only observing the parents because DNA from their grandparents can affect the offspring as well.

Explanation:

DNA is combined from the parents to create offspring. When that offspring reproduces their children not only possess DNA from their parents but from their grandparents as well. Mixing together two separate DNA's from two different family trees can result in rare genetic mutations which results in the offspring looking different from their parents but showing resemblance to their grandparents. This is why you have to look at the phenotypes of more then just the two parents because there are more possibilities, including what their grandparents looked like.

8 0
3 years ago
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