Answer:
The chlorophylls, a and b, are the pigments of photosynthesis. They are produced in chloroplasts in the photosynthetic tissues of the leaf. The chlorophyll molecules are very water repelling, partly because of the long phytol tail in the molecule.
Two diverse species<span> naturally breed an offspring, and selective pressures favor </span>new<span> traits in a given environment, (they evolve). hope this helps</span>
<span>The
difference in structure of the antennae and antennules is their size or length.
Antennae are long sensory organs while antennules are short or small sensory organs. These
organs are connected to the head of an insect, crab, or other animal and they
are used for taste, balance, smell, touch, air motion and vibration</span>
Answer:
B. Atoms are made of particles that have a negative charge.
Explanation:
Thomas is a chemist which performs an experiment using cathode ray tube. In this experiment he observed that all atoms contains electron which has negative charge. He concluded that most of mass of atom is present in the nucleus of an atom. In nucleus, proton and neutron are present which are a heavy particles and most of the space around the nucleus is empty.
The answer is c. 0.42.<span>
If:
p - the frequency of dominant allele P,
q - the frequency of recessive allele
p,
the frequencies of the genotypes are:
p² - for PP genotype (dominant homozygote without the disease),
<span>2pq - for Pp genotype (heterozygote for disease),
q² - for pp genotype (recessive homozygote with the disease).
It is given:
p = 0.3
2pq = ?
Since p + q = 1 </span></span>⇒ q = 1 - p
q = 1 - 0.3 = 0.7
Knowing p and q, we can calculate <span>the frequency of people heterozygous for this disease (2pq):
2pq = 2 </span>· 0.3 · 0.7 = 0.42
Therefore, <span>the frequency of people heterozygous for this disease is 0.42</span>
