BIOLOGY MIDDLE SCHOOL

Which of the following statements is true? (T.M.)a. Continents are plates that sit on top of another plate.
b. Continents are the thinnest part of the plate.
c. Continents are the thickest part of the plate.
d. Plates and continents are located on separate plates.

Answers

Answer 1
Answer: I pretty sure it’s C. good luck bud

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Why is reaching activation energy necessary?

Answers

Activation energy is the minimum amount of energy that reactants must absorb before a chemical reaction will start. Activation energy is required to activate atoms or molecules of the reactants to a state that they can undergo chemical transformation to form products.
Activation energy is required to activate atoms or molecules of the reactants to a state that they can undergo chemical transformation to form products

What would happen if fertilization no longer occurred in a species that reproduces sexually?

Answers

Answer: The species would decrease in number and eventually die off.  

If there is no fertilization in the sexually reproducing species for a longer period of time, then none of the female in the species would be able to  give birth to the offspring, because the male and female gamete are not able to meet any more.

Therefore the no of species would ceased and then after some the species would extinct from the population or die off, As there are no any youth to replace the old people.
The species would decrease in number and eventually die off.

What are two non living things, cheetahs interact with?

Answers

Anything from the environment, so rocks, dirt, air, water, and light all work.

Which of the following is true of a prokaryotic cell?

Answers

Answer: Prokaryotic cells do not have nuceles or membrane-bound organelles. That’s something true at least

Explanation:

The original population of salamanders migrated southward from the north of California. They avoided the Central Valley because it was too dry and hot for them to live there. As they moved south, the eastern and western salamander populations evolved and by the time they got together again in Southern California, they could no longer interbreed and had become two new species of salamanders.Identify the main mode of isolation of eastern and western salamanders in Southern California.

A. The populations evolved separately because they were temporally isolated.
B. The populations evolved separately because they were behaviorally isolated.
C. The populations evolved separately because they were geographically isolated.
D. The populations evolved separately because they were reproductively isolated.

Answers

Answer: Option C

Explanation:

Geographical isolation is a term that refers to a population of plants or animals that are separated from mating with the other organisms of the same species.

This is due to the separation of the organism because they are geographically isolated from one another. Here some members of the same species are isolated from the other members of the same species.

The eastern and western salamanders are isolated by each other because of geographical isolation.

1)How many years of history separate 1200 B.C. and A.D. 450?a) 850
b) 750
c) 1650
d) 800

Answers

C 1650 Because you have to factor in the difference of BC and AD. you must get 1200 BC to 0 first, and then go to 450, therefore getting 1650 
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