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Tanzania [10]
3 years ago
7

Summarize environmental change! WILL MARK BRAINLIEST!,!

Biology
1 answer:
wolverine [178]3 years ago
4 0
Environmental change is an altercation or disturbance of the natural equilibrium of the environment, which is usually caused by man-made influence and ecological processes such as ecological succession.
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What problems would you expect to observe in an ecosystem without secondary consumers? Be sure to answer this question in paragr
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lots of waste and dead leaves and things like that

dont plagarise ;)

5 0
3 years ago
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A student runs a simulation of resource consumption in which cereal is used to model a resource. the student spends 15 seconds u
NemiM [27]
C. Rate of harvesting
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In a piece of hemoglobin beta chain,how might u look to see an mrna in Ecoli?
hodyreva [135]

Answer:

Hemoglobin is responsible for binding and transporting oxygen in the body. It is a tetrameric protein that is found in high concentration in red blood cells (erythrocytes, red blood cells). Each hemoglobin molecule is made up of four subunits: two of the alpha type and two of the beta type, and each subunit can bind an oxygen molecule through its heme group.

Structure studies have shown that hemoglobin can adopt two conformations, called T (tense) and R (relaxed). Deoxyhemoglobin (in blue) is in state T, and the union of oxygen (in red) causes the transition to state R. The animation shows a close view of the heme group (in white, balls and rods) of one of the subunits of hemoglobin. In the deoxygenated state (T), the iron atom is not coplanar with the rest of the heme group due to its association with the histidine side chain. The union of oxygen displaces the iron atom so that it remains coplanar with the rest of the heme group, which in turn drags histidine, producing a larger-scale conformational change that affects the entire protein.

Hemoglobin can be considered as a tetramer formed by two alpha-beta dimers. The conformational change associated with the transition from T to R mainly affects the relative position of these two dimers (rather than the interactions between the alpha and beta subunits within a dimer). This is illustrated in the last stretch of the animation (drawn in black and white).

5 0
2 years ago
If one drop is 3 ml, how many liters is one drop? (3 points)
Daniel [21]
Given,

3ml = 1 drop
1 ml = 1/3 drop
1000ml = 1x1000/3 drops
1 Litre = 1000/3 drop
1 drop = 3/1000 litre
1 drop = 0.003 litre

Hence, the correct answer is option B.
7 0
3 years ago
What are enzymes used in the body for?
sp2606 [1]
Enzymes are proteins and they control the speed of chemical reactions in your body. Without them, the reactions would happen too slowly to keep you alive. 
Some break down larger molecules into smaller ones and those enzymes are in your stomach. 
8 0
2 years ago
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