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lukranit [14]
3 years ago
15

Which of the following is not one of the four main layers on earth atmosphere

Biology
2 answers:
worty [1.4K]3 years ago
8 0

Answer:

C Methosphere

Explanation:

Google

vladimir2022 [97]3 years ago
3 0
I Think That Its D)exosphere
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3 years ago
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The students concluded that pea plants grew better in compost than did melon plants. Which of the following best addresses the v
musickatia [10]

Answer:

c. The conclusion is invalid because other variables in the experiment affected the results.

Explanation:

Consider the complete problem:

A group of students designed an experiment to determine the effect of compost on the germination and growth of plants.

The students set up experimental plots by mixing different ratios of soil and compost. They planted 20 pea and 20 melon

seeds in each plot and watered each plot regularly. The students recorded the number of seeds that germinated, and as the

plants grew they recorded the plant length, number and size of leaves, and general health observations.

The following observations were recorded.

 In all treatments, more pea seeds germinated than melon seeds

 There was a week of rainy weather at 3 weeks

 Melon plants developed a fungal growth at four weeks

 Melon plants grew longer than pea plants, but many melon leaves showed signs of yellowing as the weeks passed

The students concluded that pea plants grew better in compost than did melon plants. Which of the following best

addresses the validity of the conclusion made by the students?

a. The conclusion is valid because the independent and dependent variables in the experiment were controlled.

b. The conclusion is valid because the experimental design included a large sample size.

c. The conclusion is invalid because other variables in the experiment affected the results.

d. The conclusion is invalid because the units of measurement were not given in the experimental design.

<em>In order for the conclusion to be valid, all the independent variables should have been controlled. In this case, the independent variables such as the amount of water received by the plants, nutrient requirement of the plants, etc. were not controlled leading to fungal attack on the melon plant.</em>

<em>Hence, the conclusion is invalid because other variables that ought to have been controlled affected the experimental outcome.</em>

<em>The correct option is c.</em>

4 0
3 years ago
Many flowering plants have very colorful petals like the lily seen here. What is the main purpose of these colorful
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Answer:

Many flowering plants have very colorful petals like the lily seen here. What is the main purpose of these colorful petals? A) to protect the plant from predators Eliminate B) to capture sunlight for photosynthesis C) to distract birds from eating the seeds D) to attract insects that pollinate the flower.

Explanation:

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3 years ago
Deadline coming up!!!! Help me please!!!!!!!! Needed desperately!!
TiliK225 [7]
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2c.The information for making a protein is stored in messenger RNA (mRNA)

2d. Ribosomes manufacture protein in cells


3a. The first diagram shows the process of mitosis. The second diagram shows the process of meiosis. Mitosis results in 2 daughter cells whereas meiosis results in 4 daughter cells (as you can see in the diagrams)

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I can't see the rest of the 5th question but I hope I've helped with the rest. I'm happy to answer any other questions you might have :)



7 0
3 years ago
Which of the following are depressions or opening that allows for the passage blood vessels and nerves.
Dominik [7]

Answer:

Foramen - A hole through which nerves and blood vessels pass

I believe this is the answer not a hundred percent though.

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