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Pachacha [2.7K]
2 years ago
12

What type of molecule makes up most of the cell membrane?

Biology
1 answer:
NikAS [45]2 years ago
7 0

Answer:

Proteins and phospholipids make up most of the membrane structure. The phospholipids make the basic bag, while the proteins are found around the holes and help move molecules in and out of the cell.

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 ___ dating uses radioactive elements to _____ matter such as rocks and ___. As the radioactive elements _____, they turn into
USPshnik [31]

Answer:

Radioactive dating uses radioactive elements to date matter such as rocks and fossils. As the radioactive elements disintegrate, they turn into other elements. Scientist then use the ratio of the two elements to determine how old something is.

Explanation:

3 0
2 years ago
Arrange the symbols to form a DNA molecule.
Julli [10]

The right answers are mentioned in the picture.

A base pair (bp) is the pairing of two nucleobases located on two complementary strands of DNA or RNA. This pairing is carried out by hydrogen bridges. There are four types of nucleic bases: A-T-C-G, these letters for Adenine, Thymine, Cytosine, and Guanine. A with T and C with G.

It is also necessary to take into account the antiparallel character of the DNA strands. If a strand is in the 5 '3' direction, its complete strand is in the 3 '5' direction.

5 0
3 years ago
State the objects in the universe that reflect light from the stars
Makovka662 [10]
The spectrum<span> of </span>electromagnetic radiation<span>, including visible light, which </span>radiates<span> from</span>stars<span> and other hot celestial objects. Spectroscopy can be used to derive many properties of distant stars and galaxies</span>
3 0
3 years ago
It is estimated that animal- or insect-pollinated plants produce 1000 pollen grains for each ovule; wind-pollinated plants produ
Ede4ka [16]

Explanation:

The plants which use animal or insects as pollination vector produce less pollen compared to the wind-pollinated plants.

This could be due to the reason that the chances of pollination by wind are less than the pollination by the animal or vectors.

The chances of pollination in animal pollination are high as the animals to feed on the useful product of plant will go to the other plants but in wind pollination, the chances are less as it depends on the speed and direction of the wind.

Thus, wind-pollinated plants produce high number of pollens.

6 0
3 years ago
Which statement best describes heat and thermal energy?
Leni [432]

B: They represent different concepts.

4 0
3 years ago
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