The Endocrine System. As noted earlier, the endocrine system is not a part of the nervous system, but it is still essential to communication throughout the body. This system is composed of glands, which secrete chemical messengers known as hormones.
Answer: Option B
Explanation:
A non native species is greatest threat to biodiversity. The species that are not present in the particular place and are introduced in the biodiversity by any means whether it is intentional or unintentional is known as invasive species or non native species.
The non native species of bees is introduced to prey on the fire ants can be a threat to biodiversity as it can use the resources available for the native species.
The effect of the non native species on the native species is not predictable on the species that is already present there.
Darwin and Wallace are the scientist whose ideas on geology influenced the theory of evolution during the 1800s.
Answer:
Explanation:
20 chromosomes.
gametes recieve half number of chromosomes.
Answer:
Air pollution is known to cause irritation in the eyes, lungs, nose, and throat. It creates respiratory problems and exacerbates existing conditions such as asthma and emphysema. When continually exposed to air pollution, humans become at higher risk for cardiovascular disease.
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