2 years ago

ITS AQUATICS SCIENCE Help me please

Biology

1 answer:

valina [46]2 years ago

6 0

Answer:

I'm not completely sure but my best guess would be the 3rd one

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Question 1 (2 points)

solniwko [45]

Answer:

DNA

Explanation:

RNA is not a double helix

Uracil is on the RNA, this is a picture or DNA. Uracil is just one of the nucleic bases

This is not a monomer; it's actually a polymer

It is DNA because it is a double helix structure held together by the four nucleic bases.

7 0

2 years ago

explain why it is possible to see the detailed structure of a prokaryotic cell with an electron microscope but not with a light

max2010maxim [7]

A microscope is to see smaller things that you can’t see and it is a really good tool.

4 0

2 years ago

What tissue has lacunae, calcium salts, and blood vessels? Select one: a. fibrocartilaginous tissue b. areolar tissue c. bone (o

kipiarov [429]

Answer:

c. bone (osseous tissue)

Explanation:

The extracellular matrix of the bone tissue consists of an organic component and an inorganic component.

The organic component includes Collagen , proteoglycans and glycoprotiens, While the inorganic component contains calcium and phopsphorus. The cells are present in the lacunae situated betwen the lamellae and contain a number of oblong spaces.

It also contains blood vessels as a typical long bons is supplied by a nutrient artery , periosteal vessels and epiphyseal arteries.

Hence C is the right answer.