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tiny-mole [99]
2 years ago
12

1. Sharks appear.

Biology
1 answer:
ra1l [238]2 years ago
4 0

Answer:

3 1 2

Explanation:

simple organisms apeared first insects would be less complicated than fish the came sharks as they are more complex organisms also insects were first to be food for fish and fish food for sharks

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What animals or parts of animals were used to make glues
Serhud [2]

Answer:

Particularly horse hooves and bones. In fact, the word “collagen” comes from the Greek kolla, glue.

Explanation:

5 0
3 years ago
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What does it mean to say that double-stranded nucleic acids are<br> antiparallel?
Elanso [62]

Answer:

DNA is the genetic material of all the living organism except some viruses. The structure and the characteristics of the DNA was well explained by Watson and Crick.

DNA is a double stranded molecule in which nitrogenous bases are linked together. Watson and crick explained that DNA strand are antiparallel. The antiparallel nature of the strand means one DNA gas a polarity of 5' to 3' direction whereas the another strand of the DNA gas polarity of 3' to 5' direction. These two strands has opposite polarity and runs in anti parallel directions. Thus, the DNA strand known as antiparallel strands.

4 0
3 years ago
hey help if you know this please, it doesn't have lines indicating to where so I'm confused, also need help with number 7 please
Olegator [25]

Answer:

6.

The attached image contains the correct labels.

7.

a. 1

b. 6

c. 3

d. 10

e. 8

f. 4

g. 2

h. 7

i. 9

j. 5

Explanation:

7.

The entire cardiac cycle is as follows:

  1. Deoxygenated blood enters the right ventricle from the superior and inferior vena cava.
  2. The right atrium pumps the deoxygenated blood to the right ventricle.
  3. From the right ventricle, the deoxygenated blood moves to the lungs via the pulmonary artery.
  4. After gaseous exchange, the oxygenated blood returns to the heart into the left atrium via the pulmonary vein.
  5. From the left atrium, blood moves to the left ventricle.
  6. Oxygenated blood is pumped by the left ventricle into the aorta which supplies blood to all parts of the body.
  7. Deoxygenated blood, collected from the body again enters into the right atrium via the vana cava.

5 0
3 years ago
Can some please answer this 4 questions!!!!!!!!!!!!!!! <br><br> Giving brainliest!!!!!!!
Finger [1]
1. CAUG 2. UUAGGC 3. ACAUCG 4. CGAACAU
3 0
3 years ago
Select the structures and functions of the large intestine from the choices below
grin007 [14]

Answer:

Structure of large intestine: Large intestine is the part of digestive system which comes in the end. It consist of four parts. Large intestine length is 150 cm and width is 5 cm.

Function of large intestine: It performs two main functions.

1) Large intestine helps in the absorption of water and nutrients from the food which cannot be digested in the stomach.

2) It removes the waste material from the body in the form of feces.

6 0
3 years ago
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