What is the the outer boundary of the cell of an animal called?a. Wall
b. Gate
c. Nucleus
d. Membrane

Answers

Answer 1

Answer: D. Membrane. Can also be called cell membrane so you don't get confused with the nucleus's membrane/envelope!

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Missense, nonsense, and silent mutations are examples of which type of mutation?A) substitution B) insertion C) deletion D) replication
The muscular tube near the mouth that aids in getting food is called the
Animal cells contain all of the following structures EXCEPT a A) nucleus. B) cell wall. C) mitochondria. D) Golgi apparatus.
Which of the following statements about biogeochemical cycles is not true?a. Biogeochemical cycles include living and nonliving elements. b. The rock cycle is a biogeochemical cycle. c. Biogeochemical cycles are an important part of the Earth system. d. Carbon, nitrogen, and oxygen cycles are biogeochemical cycles.

A lizard can lose its tail to escape a predator, and the tail will grow back at a constant rate. After 6 weeks, a lizard's tail has regrown to 3(3)/(4) inches long. Find the number of inches the tail

Answers

Answer:

the tail regrows at a rate of 5/8 inches per week.

Final answer:

The tail of a lizard is growing at a rate of 0.625 inches per week. This is calculated by dividing the total length the tail has regrown (3.75 inches) by the total time it took to grow (6 weeks).

Explanation:

The question is about the growth rate of a lizard's tail. We are told that after 6 weeks, the tail has regrown to 3 3/4 inches. So the question basically requires simple division to find out the rate at which the tail grows. The problem is solved as follows:

First, we convert 3 3/4 to a decimal to make it easier, which is 3.75 inches.

Then, we divide the length of the tail (3.75 inches) by the time it took to grow (6 weeks). This gives us the growth rate per week.

So, 3.75 ÷ 6 = 0.625. Therefore, the lizard's tail grows back at a rate of 0.625 inches per week.

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Which of these provides the most creative explanation for why sediments form horizontal and parallel layers? Law of Superposition Law of Unconformities Principle of Uniformitarianism Principle of Original Horizontality

Answers

Answer: Principle of Original Horizontality.

According to the principle of original horizontality all rock layers are horizontal in nature and this is specific to sedimentary rocks. The younger sediments remains in the top layers and older ones remains at the bottom. These sediments accumulate in horizontal and parallel layers and becomes compact to form rocks in the end.

The diploid number of chromosomes in one human somatic cell is: TEST IS TIMED!! 23 pairs of chromosomes 23 pairs of alleles two alleles in a genotype 23 chromosomes 46 pairs of chromosomes

Answers

Answer:

Human diploid cells have 46 chromosomes

Explanation:

Before 1800, most peppered moths in England were light-colored. During the Industrial Revolution, soot and industrial wastes darkened tree trunks. Gradually, the light-colored moths became rare, and the dark-colored ones became abundant. What role did natural selection play? A. Natural selection created the variation in the population, and then acted accordingly.
B. Natural selection acted on the variation that was present in the population.
C. Natural selection acted indiscriminately on both color variations.

Answers

The correct answer of this question is option B. Natural selection acted on the variation that was present in the population. This adaptation was a result from the Industrial Revolution. The dark-colored moths have camouflaged more effectively than the light-colored ones.

Answer:

B. Natural selection acted on the variation that was present in the population

Explanation:

I had this question asked on a test and got a 5/5

Which level of organization is represented by a bone in our body?tissue
cellular
organ
system

Answers

A bone is tissue. It forms a part of the skeletal system which is made up bones, joints, ligaments and cartilage.Cells work together in groups known as tissues. A tissue is defined as a group of similar cells working together to carry out a certain task. Examples are skin, bone, blood.Tissues in turn are grouped together to form organs. An organ is defined as a group of tissues that work together to carry out a certain task . Examples are heart, lungs, liver.

Answer:a) Tissue

Explanation: even though it looks hard, the bone is still a tissue along with ligaments and cartilage

Zygomycota produce _____, which germinate into new hyphae.

Answers

Zygomycota produce ZYGOSPORES which germinate into new hyphae.

Zygospores are thick-walled resting cells that are created by the nuclear fusion of haploid cells or when similar gametes diffuse. These belong to certain groups of fungi and algae. Zygomycota, Ascomycota and Basidiomycota ,they all reproduce sexually.

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