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denis-greek [22]
3 years ago
6

An old house was torn down. Small plants and grasses grew in a vacant lot. Over the next few years, bushes and tree seedlings be

gan to grow is this primary or secondary ?
Biology
1 answer:
anygoal [31]3 years ago
7 0
This is secondary succession
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Destruction of tundra vegetation will likely result in _____.
Nezavi [6.7K]
Okay. The destruction of tundra vegetation will not really freeze the soil or deepen the active zone much. Therefore, A and C are eliminated. The destruction of the vegetation can actually melt permafrost, which contributes to global warming. The answer is D.
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4 years ago
In one to three sentences, describe what happens during the reduction stage of the Calvin cycle
Marizza181 [45]

Answer:

  1. ATP and NADPH facilitate the reduction of 6 molecules of 3-PGA  (formed in carbon fixation)to six molecules of the simple sugar glyceraldehyde 3-phosphate (G3P).
  2. In the reduction process ADP and NADPH+ are made, when ATP releases energy and loses its terminal phosphate,  and NADPH loses energy and a hydrogen atom.
  3. ADP and NADPH+ return to the light-dependent reactions for re-use.

Explanation:

Sugar biosynthesis in plants, called photosynthesis produces glucose from the reactants;  it uses energy from sunlight, along with carbon dioxide and water. In chloroplasts, this occurs in the light-dependent and dark reactions. In the light- dependent reaction, solar energy stimulates photosystems, formed from pigments like chlorophylls.

In the light-independent reaction, products of the light reaction are used to make sugars. Here, in the Calvin cycle, the enzyme, RuBisCO, catalyzes the fixation of CO2 with Ribulose 1,5-bisphosphate (RuBP).  Organic molecules are reduced and RuBP is regenerated.

3 0
3 years ago
Read 2 more answers
How can one set of parents produce 19 children who all look different and unique but yet have some similar characteristics or tr
arsen [322]

Polygenic inheritance. The characteristics of a person aren't controlled completely by a single gene, but rather several genes that generally only make a small contribution to how the child turns out in the outcome. At one point there was a study that showed over 400 genes were linked to height, so imagine any other characteristics of a person. Environmental effects also serve a large purpose in how a child is to turn out. These children may all be growing up in the same environment, however that's not to say they all grow up the same. They could all be treated the same way and react differently to it, this counts both for physical and mental traits. All human's features such as eye colors, hair color and height are determined by several different genes. As an example, there are around 2 major eye color genes, however there are also around 14 different genes that actually contribute in determining a person's exact eye color. Some are bound to look the same, as they have the same parents, however, just because they have the same parents doesn't mean they all will look exactly alike.

5 0
3 years ago
A patient who has had two recent seizures underwent a 3-hour eeg study. what cpt® code is reported?
allochka39001 [22]
<span>The Current Procedural Terminology code would be 95813. This code would be used when a person has a routine EEG procedure performed as a way of checking the mechanisms behind the epilepsy. The code 95813 also shows that the test lasted for longer than one hour, in this case three.</span>
4 0
4 years ago
The temperature of the water is about 5°C, while the temperature of the air is about 21°C.
inna [77]

Answer:

the temp of the water is gonna rise to 21 C

Explanation:

i dono what ur asking :)

8 0
3 years ago
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