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nikitadnepr [17]
3 years ago
9

How many electrons does calcium have

Biology
1 answer:
Veronika [31]3 years ago
8 0

Answer: 20 electrons

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An elephant has a long, powerful trunk. According to the ideas of Lamarck, how did the trait of long, powerful trunks develop in
Lubov Fominskaja [6]

Answer:

Gradually, as generations of elephants continued to selectively use and develop their trunks.

Explanation:

Jean-Baptiste Lamarck was  famous French Naturalist. He was a soldier, a biologist and an academic. He gave an early theory of evolution known as the theory of Lamarckism.

It was Lamarck who first believed that elephants earlier had small trunks. But eventual when there was scarcity of food and water, the elephants stretched out its trunk to reached out for food such as trees and also water. And as a result their offspring inherited long and powerful trunk.

In his theory of Lamarckism, he believed that the species passes on its traits to the offspring which they acquired through their use in their lifetime. In this case, the elephants might have used their trunks in such a way that they became long and strong over time and they passed tis trait to their babies.

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3 years ago
Carlos is heading a student council project to improve cafeteria meals. He surveyed all students who eat cafeteria
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A.) He should total the votes for each of the options and plot these five values in a chart.

Explanation:

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4 years ago
Why do sexually reproducing organisms need gametes? Why don’t asexually reproducing organisms need them?
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Gametes are reproductive cells that unite during sexual reproduction to form a new cell called a zygote. Sexual reproduction needs zygotes to reproduce that is why gametes are needed. Asexual reproduction doesn’t need gametes because there is only one parent and there is no fusion of gametes.
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3 years ago
Below is an inaccurate (false) statement. Explain two distinctly different reasons why it is incorrect. Be specific, and use rel
Alisiya [41]

Answer:

The given statement is false, as some of the fruits like a banana do not contain seeds as they get propagated through the offsets. The development of banana takes place without fertilization, that is, via the procedure of parthenocarpy. All the fruits are also not sweet in taste like lemon is a fruit, which is sour in taste. Thus, all the fruits are sweet is also incorrect.

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What are key markers for the identification of Bacteria?
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The key markers for the identification of bacteria are special RNA polymerase, peptidoglycan in cell walls. ester-linked fatty acids.  

Explanation:

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3 years ago
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