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castortr0y [4]
3 years ago
11

Help pls luv lol this is science

Biology
2 answers:
ki77a [65]3 years ago
8 0

Answer:

application of chemical fertilizers

Explanation:

...................................

Genrish500 [490]3 years ago
7 0

Answer:

D  Access to water

Explanation:

All living things need water to survive. (which is why it makes answer D correct)

Human use of pesticides are used to destroy plants, not help them grow. Answer A is incorrect.

A plant that produces a chemical that attracts pollinators does not help a plant thrive. B is incorrect.

Application of of chemical fertilizers may help the plant grow, but it is not nessessary for the plant to grow, therefore answer C is incorrect.

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The illustration shows a pedigree with an autosomal recessive mutation.
Doss [256]

Answer:

50%

Explanation:

Sana makatulong

4 0
2 years ago
How is carbon moving between the air and found it decreasing
ratelena [41]

Answer:

Animals and plants need to get rid of carbon dioxide gas through a process called respiration. Carbon moves from fossil fuels to the atmosphere when fuels are burned.

The oceans, and other bodies of water, absorb some carbon from the atmosphere. The carbon is dissolved into the water.

7 0
3 years ago
Colony stimulating factors will result in A. platelet production B. fibrinolysis C. white blood cell production D. the productio
____ [38]

Answer:

(C). white blood cell production

Explanation:

CSFs (colony stimulating factors) are glycoproteins that activate intracelluar pathways and promote proliferation of hemopoietic stem cell to form immune cells (white blood cells).

CSFs are released in response to infection and interacts with blood stem cells to produce new immune cells. These resulting new immune cells create an army of cells to fight against the infection and provide immunity.

Thus, the correct answer is option (C).

7 0
3 years ago
What are the defining characteristics of lobe-finned fishes?
ladessa [460]

Lobe-finned fishes are characterized by lobes in their fins in addition to the basic characteristics of fishes.

<h3>What are lobe-finned fishes?</h3>

Lobe-finned fishes are a group of fish known as Sarcopterygii. They possess the basic characteristics of fishes such as swim bladder, lateral lines, etc.

They are a sister group of ray-finned fishes. In addition, lobe-finned fishes possess the following characteristics:

  • lobed fins
  • enameled teeth

More on lobe-finned fishes can be found here: brainly.com/question/7849168

#SPJ12

3 0
2 years ago
An enzyme contains a catalytic histidine residue in its active site that must release an R group proton to solution in order to
hjlf

Options missing:

a) The pH of the environment should be relatively high.

b) The pH of the environment should be relatively low.

c) The pH of the environment would not matter.

d) The environment should be set to the biochemical standard state.

Answer:

a) The pH of the environment should be relatively high.

Explanation:

For optimal function an enzyme needs a certain environment or condition. As temperature increases, the rate of enzyme activity also increases. As temperature increases toward its optimum point of 37 degrees Celsius (98.6 F), hydrogen bonds relax and make it easier for the hydrogen peroxide molecules to bind to the catalase.

The part of the enzyme where this reaction takes place is called the active site. A temperature that is higher or lower than this optimum point changes the shape of the active site and stops the enzyme from working. This process is called denaturation.

Enzyme pH levels also change the shape of the active site and affect the rate of enzyme activity. Each enzyme has its own optimal range of pH in which it works most effectively. In humans, catalase works only between pH 7 and pH 11. If the pH level is lower than 7 or higher than 11, the enzyme becomes denaturated and loses its structure. The liver sustains a neutral pH of about 7, which creates the best environment for catalase and other enzymes.

General acid catalysis would require histidine to be protonated at pH values (pH 8.0) optimal for enzymatic activity which is relatively high.

3 0
3 years ago
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