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Leona [35]
2 years ago
6

Is made to represent a real object or system Map Chart Table Line graph Model

Biology
1 answer:
ad-work [718]2 years ago
7 0
The answer is Model. Hope this helps!!
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Why mosquito is called vector for malaria?
vovangra [49]

Only certain species ofmosquitoes of the Anopheles genus—and only females of those species—can transmitmalaria. Malaria is caused by a one-celled parasite called a Plasmodium. Female Anopheles mosquitoespick up the parasite from infected people when they bite to obtain blood needed to nurture their eggs.

8 0
2 years ago
Why a plant which is left in the dark for a long period of time will test negative for starch?
Zanzabum
When a plant is left in dark for several hours, it does not get sunlight. Isn't it?
When a plant does not get sunlight, it cannot prepare food for itself , i.e, photosynthesis does not take place. When it does not prepare food in the form of starch, it will test negative for it.

hope it helps!
3 0
3 years ago
Birds and mammals have a four-chambered heart, but most reptiles have a three-chambered heart. How does this fact affect the con
eduard

Answer:

The animals present body structure is due to evolution. It is seen in each part including the structure of the heart. The vertebrate heart becomes complex from a simpler form.  

Invertebrates, the heart of fishes is two-chambered having one auricle and one ventricle. The deoxygenated blood gets purified in the gills. They are aquatic and no lungs for breathing. The hearts pump a mixture of oxygenated and deoxygenated blood to the body.  

The amphibians and reptiles have 3 chambered heart as they lead terrestrial mode of life. The gills modified into the lungs.  The left auricle receives pure blood and the right auricle receives deoxygenated blood. The blood purified in the lungs and in the ventricle, both types of blood get a mix. The ventricle pumps the mixed-blood throughout the body.

In the case of birds and mammal, the heart is 4 chambered and the oxygenated and deoxygenated blood are separated. These two are higher vertebrates. No mix of pure and impure blood, the body receives only the oxygenated blood.

This shows to construct the phylogenetic tree of vertebrates - the fishes should be in the bottom, and above it amphibians, reptiles, then, mammals and birds on the top branch of the tree. As the chambers and structure of the hearts modified one after another.

6 0
3 years ago
Please answer someone
Nana76 [90]

Answer:

thats true brooooooooooooooooo

8 0
2 years ago
Read 2 more answers
Why is it important for some reactions to be reversible?
Anuta_ua [19.1K]

Answer:

The binding of oxygen and hemoglobin is also an important reversible reaction. Its how oxygen is carried around the blood to the cells of your body

Explanation:

A reversible chemical reaction is one that can go in both directions; reactants can turn into products, and products can turn back into reactants.

6 0
3 years ago
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