Explanation:
Seed formation without fertilization in flowering plants involves the process of ---
A) APOMIXIS
In certain organisms, like humans, there are two morphologically distinct types of gametes: (1) the male gamete (i.e. sperm cell) and (2) the female gamete (i.e. ovum). The male gamete is smaller in size and motile whereas the female gamete is several times bigger and non-motile. The haploid condition of the two gametes is essential so that at fertilization during sexual reproduction the integrity of the chromosomal number is maintained throughout generations.
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The answer is Lionfish
are native to the tropical Pacific. There are no natural water routes of warm
water between the Pacific and Atlantic oceans.
Invasive species is a species that colonizes an environment
in which it is not a native species and tends to upset the natural balance of that environment. Lionfish are naturally
found in the indo-pacific, which is their
native environment. However, their presence
in the eastern United States has have threatened
the ecosystem of the region. The fish has decimated fisheries and reef
ecosystem since they also don’t have natural predators in the region. Therefore,
their population explodes unchecked.
Answer:
The ventricles of the heart have thicker muscular walls than the atria. This is because blood is pumped out of the heart at greater pressure from these chambers compared to the atria.
Explanation:
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Answer:
The options are
A. Delta
B. Watershed
C. River
D. Lake
The CORRECT ANSWER IS A
A. Delta
Explanation:
Delta fan is a low lying vegetation that consists majorly of stream –the river accumulates borne sediments at its mouth. It occurs when a river flows to a body of standing water, taking with it soil and minerals as it flows into the body of standing water to form a fan shape or triangle as seen in the attached image.
