Answer:
Epinephrine binds to receptors on some smooth muscles (ex: around arterioles) → Ca++ released from ER → intracellular Ca++ up → stimulates contraction. c. Epinephrine binds to receptors on some smooth muscles (ex: around bronchioles) → phosphorylates protein needed for response to Ca++, preventing response.
Answer:
The levels, from smallest to largest, are: molecule, cell, tissue, organ, organ system, organism, population, community, ecosystem, biosphere.
Explanation:
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One of the major problems of monoculture farming is the variety of species. If there are no varieties in the producer level in the food chain all other organisms within the ecosystem would be affected.
Answer:
1. P
2.P
3.R
4.R
.5.R
6.B
7.R
8..P
9.P
10..P
11.R
12.P
13.P
14.R
15.R
16.N
17.N
18.P
19.R
20.B
21. R
Explanation:
Photosynthesis is a process in which carbondioxide gas react with oxygen in the presence of solar radiation produces oxygen and glucose. oxygen is released in the atmosphere while glucose s stored in different part of plant body while on the other hand in respiration, glucose is broken down in the presence of oxygen produces carbondioxide, water and energy in the form of ATP.
Answer:
Co-dominance
Explanation:
Considering the allele for red pigment as C<em>R</em> and that for a white pigment C<em>W</em>, a pink flower will equally express both the pigments in its phenotype and will thus have a genotype of C<em>R</em> C<em>W</em>.
Crossing CR CW × CR CW you'll get,
25% C<em>R</em> C<em>R</em> - red flowers
50% C<em>R</em> C<em>W</em> - pink flowers
25% C<em>W</em> C<em>W</em> - white flowers
