Scientists suspect that human language evolved around 150000 years ago.
<span>the human language is linked to the Homo Sapiens who lived around 150,000 to 200,000 years ago in eastern or perhaps southern Africa</span>
The reason why scientists suspect this is <span>by evidence of abstract and symbolic behaviour in the early modern humans, taking the form of engravings on red-ochre.
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B. The Hubble Space Telescope
The plant contains vascular tissue and has an alternation of generation. But, it lacks seeds. So, the plant is a Pteridophyte.
- Vascular tissues are absent in thallophytes and bryophytes. They are found in pteridophytes, gymnosperms and angiosperms.
- The sporophyte and gametophyte generation is common in bryophytes and pteridophytes.
- Seeds are produced in plants that come under the group gymnosperms and angiosperms. The presence of seeds is the main characteristic of these groups.
- Thallophytes, bryophytes and pteridophytes lack seeds. The reproduction in plants that comes under these groups occurs with the help of spores.
Thus, the recently discovered species of the plant should be classified based on the presence of vascular tissues, gametophytes and sporophytes. As pteridophytes contain vascular tissues, sporophytes and gametophytes and lack seeds, the plant is a pteridophyte
Learn more about pteridophytes here:
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Answer:
A response is a _reaction to a stimulus. • A stimulus is anything that can cause an individual to respond or react. • Stimuli can be _internal or external.
Explanation:
A change in the cellular make up of an organisms due to response or reaction to a stimulus is called a response. This response can be due to a stimulus inside the body , or due to effect of an external ( stimulus) object on the body-stepping on a sharp pin.
In either cases, the stimulus is receive by the receptors, which transfer the stimulus through the sensory neuron to the inter neuron in the CNS, for the motor neuron to bring an effective response at the effectors.
Answer: farmers would choose animal traits by making them breed with each other making the baby a good source of help got the farmers and they can give them traits that will be used to give them specific jobs to do.
Explanation:
