BIOLOGY MIDDLE SCHOOL

Which of the following structures would normally be found in a plant cell but not in an animal cell?A. cell membrane
B. vacuoles
C. nucleus
D. cell wall

Answers

Answer 1
Answer:

Answer:

D. Cell Wall

Explanation:

Plant cells have both a cell membrane and a cell wall, animal cells however, only have a cell membrane.
Answer 2
Answer:

Answer:

cell its correct because I got straight A+ in learning about that stuff

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Diego is studying compost. He conducted an experiment to see how moisture levels affect the breakdown of organic materials in compost piles. Diego found that adding 1 L of water per 10 kg of dry matter caused the compost to break down at the fastest rate, but adding more than 1 L caused decomposition to slow down. Which of the following questions do these results lead to? I. Why does adding more than 1 L of water per 10 kg cause decomposition to slow down? II. Does this ratio of water to dry matter hold true for all organic materials being composted? III. Why should anybody want to start a compost pile? A. I, II, and III B. I only C. I and II only D. II and III only

Answers

Answer:

Option C , I and II only

Explanation:

The study conducted is done only for people or organisations that either started a compost pile or who want to start a compost pile. Thus result III is not at all a valid question for the study conducted.

However, there can be question related to the result of experiments clarifying  the quantity of additives used in the experiment for  example why only 10 Kg of dry water, why not to add more than 1 L of water , why only water is to be added why not some other solvent etc. Thus question I is a valid question.

Also , question II is valid as it asks about expanding the scope of experiment from one type of organic material to all other type of organic matter in the compost.

There fore both question I and II are valid question and thus option C , is correct.

The lion-tailed macaque is a species of Old World monkey. Which of the following will the lion-tailed macaque reproduce with? A.
other lion-tailed macaques

B.
other macaques

C.
any Old World monkeys

D.
any monkey species

Answers

A.
other lion-tailed macaques

Answer: A. other lion-tailed macaques

If the relationship between the manipulated variable and the responding variable is a direct proportion, what will a line graph of this relationship look like?A) a straight line
B) a curved line
C) a jagged line
D) none of the above

Answers

I think B. A curved love is the answer.
Th answer is B, a straight line

Equal to the number of electrons______.

Answers

Answer:

protons

Explanation:

when the atom is neutro, the number of protons is the same at electrons. the charges are in equilibrium.

Which of the following is a relatively new disease? a. polio, b. smallpox, c. west nile virus, d. all of the above

Answers

the answer is c. west nile virus in about year 2012 it appeared and in 1937 there was a outbreak in africa.

What type of glands are the gastric glands?A. Endocrine glands release contents into the bloodstream

B. Exocrine glands release contents into the bloodstream

C. Exocrine glands release contents into ducts

D. Endocrine glands release contents into ducts​

Answers

Answer:

B

Explanation:

The secretions of the exocrine gastric glands - composed of the mucous, parietal, and chief cells - make up the gastric juice. The products of the endocrine cells are secreted directly into the bloodstream and are not a part of the gastric juice
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