Transcription makes a complementary _______ strand of the DNA. a. RNA b. DNA c. peptide d. none of the above

Answers

Answer 1

Answer: A. RNA

Transcription is the process of copying a code of DNA to a RNA strand.

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Which was one of the first animals to develop a true body cavity?

The distance from the top of the outer core to the bottom is?

Answers

Is there a diagram or options, this is hard to answer without knowing some sort of information or variable.

I'd be happy to answer once I get more information :)

List and describe two ways that scientists can date fossils found in the earth.

Answers

Answer:

relative and absolute dating

Explanation:

Two methods of dating fossil fuels are -

a) Relative Dating and b) Absolute Dating

a) Relative Dating - In this method, unknown age of fossil A is determined by comparing it with the known age of fossil B via correlation . Such " fossils B" are known as index fossils. These index fossils belong to a specific age group.

Some common example of index fossils are -

brachiopods,

trilobites, and

ammonites

b) Absolute Dating - In this method, the age of rock is determined through radiometric dating methods. Here, instead of dating the fossil itself, the rock or volcano layer above and below the fossil is dated for determining a rage of date.

First, they can describe how old fossil is by just looking at the layer where the fossil remain, the deeper the fossil, the longer the time way back that organism has live.

Second, Radiometric Measuring, is how they calculate how the fossil has been decays over time.
Hope this help.

Describe how our bones move

Answers

So. Take your arm for instance.
.
Everything... everything, even how you think of the Question of the Ultimate Purpose of Life, begins with the brain. The brain sends a signal through the body through nerves (NERVOUS SYSTEM) whose signal is connected to the muscle (MUSCULAR SYSTEM). Then, since the muscle is attached to the bone, (SKELETON), the muscle contracts. The arm then pivots on the elbow joint.

Hope I helped!

3. Prokaryotic cells have membrane enclosed cell structures.
O
True
O
False

Answers

Prokaryotic cells lack membrane enclosed cell structures.

What are the characteristics of prokaryotic cells?

Prokaryotes are single-celled organisms belonging to the domains Bacteria and Archaea. Prokaryotic cells are much smaller than eukaryotic cells, have no nucleus, and lack organelles.

Examples of prokaryotes are blue-green algae, bacteria and mycoplasma. Among prokaryotes, bacteria are the most common and multiply very fast.

They lack a nuclear membrane. Mitochondria, Golgi bodies, chloroplast, and lysosomes are absent. The genetic material is present on a single chromosome. The histone proteins, the important constituents of eukaryotic chromosomes, are lacking in them.

Learn more about prokaryotic cells:

brainly.com/question/29771587

#SPJ2

Answer:

False

Explanation:

Prokaryotic cells lack a membrane enclosed nucleus and organelles.

What is the function of a chloroplast?O A. Gamete production
O B. Photosynthesis
O C. Fermentation
O D. Cellular respiration

Answers

Answer:

Photosynthesis

Explanation:

Chloroplast contains chlorophyll which absorbs sunlight and let photosynthesis happen.

Answer:

photosynthesis

Explanation:

Chloroplasts are found in plant cells its function is the process by which energy from the Sun is converted into chemical energy for growth. Also called photosynthesis.

what happens to the thickness of the uterine lining when the level of progesterone reaches its highest level?

Answers

Answer:

Becomes thick with blood vessels passing through

Explanation:

Progesterone levels are the highest in the middle of the luteal phase i.e at the eighth or ninth day of menstural cycle. it is the hormone which is released after ovulation. It is produced by the corpus luteum (an area created by the collapsed follicle) which consists of ovulated egg. At this stage the uterus lining gets thick and also estrogen is at high level. If the conception does not takes place the level of progesterone falls as the corpus luteum starts to break.

What happens at that point is that the lining sheds through the vagina otherwise known as the menstrual cycle which occurs if the egg has not been fertilized.

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Which of these make up the vascular tissue