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3 years ago

Why is a shell considered to be biotic

1 answer:

6 0

Shells are considered biotic because they come from living things. Biotic describes something living or use to be living such as plants and animals. So shells are considered biotic because they come from a living organism.
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What is the elevation of point B

Alika [10]

Answer: c. Point B has an elevation less than 2750 feet.

Explanation:

The lines drawn on the map are known as contour lines and they are used to measure elevation. Point B is on a river and rivers are only able to flow at a lower elevation than the area around them.

Point B is therefore lower than the area around it and as the closest contour line to it puts the area at an elevation of 2,750 feet, that must mean that Point B is lower than 2,750 feet.

5 0

2 years ago

For the carbon cycle and the nitrogen cycle to function properly, which organisms must always be present?

soldi70 [24.7K]

Answer:

Decomposers

Explanation:

3 0

3 years ago

HELP

Tanzania [10]

Answer:

Photosynthesis produces: glucose and $O_{2}$

...from $CO_{2}$ , energy (light) and $H_{2} O$

Respiration produces: energy (ATP), $CO_{2}, H_{2} O$

....from glucose and $O_{2}$

Explanation:

These end products, namely $O_{2}$ and glucose are then used in respiration...

Using energy in the form of solar energy, plants, phytoplankton, algae, and other microorganisms produce chemical energy via photosynthesis. This complex mechanism is central to these species.

They combine light energy from the sun, water, and carbon dioxide.

6 $CO_{2}$ + 6 $H_{2} O$ + (energy) → $C_{6} H_{12} O_{6}$ + 6 $O_{2}$

In the mechanism of cellular respiration, organisms extract energy from food. Sugars in the form of glucose are broken down into carbon dioxide and water during aerobic respiration in mitochondria to produce energy in the form of ATP (adenosine triphosphate).

<h3> $C_{6} H_{12} O_{6} + 6 O_{2} _{\to \$ $6CO_{2} + H_{2} O + energy (ATP)$ </h3>

The waste products, $CO_{2}$ and $H_{2} O$ , result from respiration, these are used as reactants in the photosynthetic process. In turn, its products are the reactants $O_{2}$ and $C_{6} H_{12} O_{6}$ in respiration.

4 0

3 years ago

He transfer of pollen from the male reproductive structure to the female reproductive structure is called

yarga [219]

The answer is pollenation

5 0

3 years ago

Which diagram correctly shows how heterozygous alleles are found on homologous chromosomes?

LenKa [72]

Answer:

the chromosome are found in the nucleus of a body cell in pair

6 0

2 years ago