Answer:
16. Carbohydrates
17. Lipids
18. Carbohydrates
19. Carbohydrates
20. Lipids
21. Lipids
22. Carbohydrates
23. Lipids
Explanation:
Carbohydrates are organic molecules composed of carbon, hydrogen and oxygen. Carbohydrates can be classified into three types: monosaccharides (e.g. glucose), disaccharides (e.g., lactose), and polysaccharides (e.g., starch). Cellulose is a carbohydrate where many glucose rings chain together, while chitin is a polysaccharide consisting of chains of modified glucose molecules.
Lipids represent a diverse group of organic molecules that include, among others, fats, waxes, oils, hormones, etc. Lipids play a role by insulating (and protecting) the body. For example, there is a layer of fats beneath the skin which enables to maintain body temperature relatively constant. In animals, lipids constitute about 50% of the mass of cell membranes. These membrane lipids are mainly phospholipids, glycolipids and cholesterol. There are hormones that derive from lipids such as steroid hormones, which derive from cholesterol. Some examples of steroid hormones are testosterone, estrogen and cortisol.
Answer:
D. All of the above
Explanation:
Like all living organisms, plants use deoxyribonucleic acid (DNA) as their genetic material. The DNA in plant cells is found in the nucleus, the mitochondria and the chloroplasts. The latter two organelles are descendants of bacteria that were captured by a eukaryotic cell and have become endosymbionts.
The answer is semiconservative replication. Semiconservative meaning that half of the original molecule (one of the two strands in the double helix) is conserved in the new molecule. Replication is the process by which double stranded DNA molecule is copied to produce two identical DNA molecules. It is one of the most basic process that occurs within a cell. Each time a cell divides, the two resulting daughter cells must contain exactly the same genetic information, or DNA, as the parent cell. To accomplish this, each stand of existing DNA acts as a template for replication.
Answer:
Asteroid-small,rocky objects that orbit the sun
Axis-a real or imaginary line that something rotates on
Comet-cosmic balls of frozen gasses,rocks,and dust that orbit the sun
Diameter-a straight line that runs from one side of a figure and passes through the middle
Gravity-an invisible force that pulls objects towards each other
Kuiper Belt-an icy ring of frozen objects just outside of the planet Neptune’s orbit
Latitude-the measurement of distance north or south of the equator
Orbit-a regularly repeated path that one object in space takes around another
Revolution-the action of a celestial body going around in an orbit;the time taken by a celestial body to make a complete orbit;the rotation of a celestial body on its axis
Rotate-the process/act of turning or circling around something
Rotation-the action/process of rotating on/as if on an axis or center
System-a group of related things that work together as a whole
Theory-a plausible or scientifically acceptable principle/body of principles offered to explain something
