Answer:
4. p.complement system c.saliva b.sneezing
The pigment that traps energy is Chlorophyll.
Chlorophyll is a green pigment commonly found in almost all
plants, algae and cynobacteria. Leaves appear green because they contain this
pigment. This pigment absorbs the light energy from the sun to complete the
process of photosynthesis or food production of plants. Chlorophyll is said to
absorb light in the long wavelength and blue in the short wavelength regions of
the visible light spectrum. Green light is not absorbed, thus making the leaves
of some plants green. Chlorophyll is found at the plant’s chloroplasts, which
comes to have different structures.
test the hand sanitizers on bacterial colonies that are kept in the exact same environmental conditions, such as temperature and light level
Answer:
E. Two of the statements above are correct i.e. options B and C
Explanation:
Cardiac muscles, also known as myocardium, are one of the three types of muscles found in the heart (the other two being skeletal and smooth muscles). Cardiac muscle cells are striated and branched in structure, with only one nucleus located centrally i.e. mono-nucleated.
Unlike the skeletal muscles, cardiac muscles are involuntary muscles controlled by certain parts of the brain. The cells that make up the cardiac muscles are connected to one another by structures called intercalated discs. Also, cardiac muscle cells contract spontaneously i.e. internally. Hence, options B and C are correct
