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user100 [1]
3 years ago
8

Explain the characteristics scientists use when

Biology
1 answer:
Law Incorporation [45]3 years ago
5 0
Answer: Classification of organisms is done while considering many factors such as:
Cell type- whether the organism is prokaryotic or eukaryotic
Cell structure- This includes both the presence and composition of the cell wall
Body type- whether the organism is multicellular or unicellular
Mode of nutrition- the method through which the organism achieves its nutritional requirement, by consuming other organisms (heterotroph) or making its own food (autotroph)

Hope this helps (:
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Why does the liver have a hepatic portal vein and a hepatic vein?
gregori [183]

Answer:

The liver have a hepatic portal vein and a hepatic vein for blood flow and transport of nutrients.

Explanation:

Hepatic portal vein is also known as portal vein that carries blood from the organs (gastrointestinal tract, pancreas and gallbladder) to the liver. The nutrients are also transfer by the hepatic portal vein.

Hepatic vein: This vein carry deoxygenated blood into the inferior vena cava from the liver. Total three hepatic veins brings deoxygenated blood from right, left and middle part of liver.

5 0
3 years ago
A true-breeding plant that produces yellow seeds is crossed with a true-breeding plant that produces green seeds. The F1 plants
nadya68 [22]

Answer:

The phenotypic ratio will be 3:1

Explanation:

As per this question there are two phenotypes for seed color, yellow and green. Both the parents are true breeding that means they are homozygous for this trait. Also, all the F1 plants have yellow seed color which clearly indicates that yellow seed color is a dominant trait while green is recessive trait.

The cross of true breeding plants as mentioned above is depicted as under:

Parents                             YY    x   yy

                                          /   \       /   \

F1 generation                Yy   Yy  Yy   Yy

So, as per the law of dominance because of the presence of Y allele, all these progeny will be yellow in color.

Next, when these F1 plants will be crossed, the result will be as under:

F1 generation                    Yy   x    Yy

                                         /   \         /   \

F2 generation               YY   Yy   Yy   yy

The genotypic ratio of F2 generation is 1:2:1

The phenotypic ratio of F2 generation is 3:1

It simply means that in F2 generation, 3 progeny which have allelic combination YY & Yy will be yellow colored while 1 progeny which has allelic combination yy will have green color.

8 0
3 years ago
What causes sudden feeling of sadness and anxiousness ?​
AlexFokin [52]

Answer:

One possible cause of persistent sadness could be depression

Explanation:

8 0
3 years ago
Read 2 more answers
Explain how a nutrient can be a limiting factor in an ecosystem.
11111nata11111 [884]

Answer: Since nutrients are needed to build life tissues and carry out essential life functions, a limiting nutrient (scarce nutrient) will limit organisms' growth in an ecosystem.

6 0
3 years ago
Read 2 more answers
The direction that an ocean current travels can be altered by the movement of the Earth's rotation on its axis. This is known as
ollegr [7]

The direction that an ocean current travels can be altered by the movement of the Earth's rotation on its axis. This is known as the Coriolis effect.

<h3>What is Coriolis effect in simple terms?</h3>

Coriolis effect is the result of Earth's rotation on weather patterns and ocean currents. The Coriolis effect makes storms swirl in the clockwise direction in the Southern hemisphere while on the other hand, storms counterclockwise in the Northern Hemisphere. This effect can cause change in the direction of the ocean current due to the rotation on its axis.

So we can conclude that the direction that an ocean current travels can be altered by the movement of the Earth's rotation on its axis. This is known as the Coriolis effect.

Learn more about ocean current here: brainly.com/question/1145641

#SPJ1

4 0
2 years ago
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