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nalin [4]
4 years ago
9

Help! What's the answer?THANKS! :)

Biology
1 answer:
Andrej [43]4 years ago
6 0
Letter a is the answer i think
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Table salt is the result of a(n) _____.<br><br> covalent bond<br> ionic bond<br> hydrogen bond
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It would be an ionic bond because it includes the ionic compound sodium chloride NaCl. I hope this helps!
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4 years ago
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O fitoplâncton é a base das cadeias alimentares marinhas ,estando presente apenas na zona fótica . Vc concorda com a afirmação j
gayaneshka [121]

Answer:

El fitoplancton se basa en la cadena alimentaria marina. Sin embargo, el fitoplancton significa mucho más porque forman la base y la base de la cadena alimentaria marina. Se les conoce como fitoplancton porque dependen de la luz para el crecimiento y el sustento de la vida fuera del hábitat marino. Se sabe que son responsables del 50% de la fotosíntesis de la Tierra, por lo tanto, son cruciales para la supervivencia humana. Las algas son un grupo importante de fitoplancton. Otros ejemplos incluyen cianobacterias y diatomeas.

Explanation:

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3 years ago
How are catastrophism and gradualism different
Elza [17]

Catastrophism is associated with major changes that occurs once at a time in a species while gradualism is associated with tiny changes that occurs over a period of time that finally contributes a bigger evolutionary change.

<u>Explanation:</u>

The events that are sudden, short-lived, violent occurring worldwide thereby changing the shape of the Earth is Catastrophic. This process is opposite to contrast to  gradualism which is also called as uniformitarianism. This process is associated with slow and also incremental changes. Erosion is the best example for this process.

The formation of major mountain chains and great floods are some of the examples of Catastrophism. Both are associated with the changes that occurs in a species by the time taken for the changes determines whether it is Catastrophism or gradualism.

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3 years ago
When enzyme action stops due to a build up of end product, this control is called..?
Papessa [141]
This control is called negative feedback. Mechanism of negative feedback. Each metabolic reaction or process is regulated by several enzymes. These enzymes control the rate of these reactions and thus are fundamental in maintaining homeostasis. In a negative-feedback pathways, the end product of  a pathway binds to the allosteric site of the first enzyme, closing its active site and blocking the rest of the reactions.
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4 years ago
Give one reason why some people do not approve of using contraceptives. [1]
Rashid [163]

Answer:

Reasons for failure to continue to use contraception include the following: for some, the risk of producing an unwanted pregnancy adds flavor to the sexual act; some women rationalize their sexual activity, and this usually leads to discontinuation of contraceptive use; failure to change the contraceptive when needs

Explanation:

8 0
3 years ago
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