What is the difference between prokaryotic and eukaryotic cells?A.
Organisms with eukaryotic cells are always multicellular, but organisms with prokaryotic cells are not.
B.
Eukaryotic cells do not have membrane-bound organelles, but prokaryotic cells do.
C.
Prokaryotic cells do not have a nucleus, but eukaryotic cells do.
D.
Prokaryotic cells always have cell walls, but eukaryotic cells do not.

Answers

Answer 1

Answer: C. Prokaryotic cells do not have a nucleus, but eukaryotic cells do.

Answer 2

Answer: C- bc a nucleus and other membrane-bound organelles are only present in eukaryotic cells.

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Which is not an example of matter and energy cycling through living things? A. Trees growing B. Plants absorbing carbon dioxide? C. Salmon eating shrimp. D. A drop of water falling through the sky?
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Which equation correctly shows the reactants and products of photosynthesis? A C6H12O6 + 6CO2 --> 6O2 + 6H2O B C6H10O6 + 6O2 --> 6CO2 + 6H2O C 6O2 + 6H2O --> C6H10O6 + 6CO2 D 6CO2 + 6H2O --> C6H12O6 + 6O2

Answers

The right option is D 6CO2 + 6H2O --> C6H12O6 + 6O2

This equation shows that carbon dioxide and water are used with light energy to produce glucose sugar and oxygen gas.

Photosynthesis is a process by which plants and other autotrophs use energy from sunlight to produce nutrients from carbon dioxide and water. Plants absorb water through the roots, carbon dioxide from the air, and light energy from the Sun, to produce glucose and oxygen.

Final answer:

The correct equation for photosynthesis is 6CO2 + 6H2O --> C6H12O6 + 6O2. In this complex process, carbon dioxide and water are transformed into glucose and oxygen with the help of sunlight.

Explanation:

The correct equation that represents the reactants and products of photosynthesis is option D: 6CO2 + 6H2O --> C6H12O6 + 6O2. In this process, carbon dioxide (CO2) and water (H2O) are the reactants which, when exposed to sunlight, get transformed into glucose (C6H12O6) and oxygen (O2), which are the products. While the equation seems simple, it represents a complex multi-step process that plants use to convert light energy into chemical energy.

Learn more about Photosynthesis here:

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When the temperature of the air is 25°C, the velocity of a sound wave traveling through the air isapproximately

A. 332 m/s.
B. 347 m/s.
C. 357 m/s.
D. 320 m/s.

Answers

A. 332 m/s.

When the temperature of the air is 25°C, the velocity of a sound wave traveling through the air is approximately 332 m.s.
NOT:
B. 347 m/s.
C. 357 m/s.
D. 320 m/s.

Several hours following death the muscles of the body stiffen, a condition commonly referred to as rigor mortis. What is the cause for the stiffened muscles?Myosin heads are not attached to actin filamentsMyosin heads are attached to actin filamentsActin degenerationMyosin degenerationBuild up of ATP due to lack of circulation

Answers

Answer:

Myosin heads are attached to actin filaments

Explanation:

During the process of muscle contraction, myosin heads are attached to actin filaments. ATP is necessary for their release and for the muscle relaxation.

In rigor mortis, myosin heads continue binding with the active sites of actin proteins. This occurs because after death, there is no production of ATP and consequently, the muscle is unable to relax until further enzyme activity degrades the complex.

What pigment makes plants green

Answers

its called pigment chlorophyll

plants are green because their cells contain chloroplasts which have the pigment "chlorophyll" (it absorbs deep red and blue light) and the rest of the sunlight is being reflected causing the plant to look green

Which is NOT an important step in pollination? A. An insect drinks nectar from a plant B. Pollen sticks to the insect’s legs C. The insect travels to another plant to deliver the pollen.

Answers

Answer:

A. An insect drinks nectar from a plant

Explanation:

Even though this is a bit important its really not, all its doing is just drinking which the pollen sticks to them as they move to a different flower .

Why do cells undergoing mitosis require one set of divisions, whereas those undergoing meiosis require two sets of divisions? what is the end result of meiosis?

Answers

Mitosis, you see, is somatic (body) cell division, and the DNA in the nucleus during Interphase can replicate by doubling the chromosomes before the actual mitosis or cell division process of splitting into TWO identical cells (and they function the same with the same number of identocal chromosomes too! So they are called Diploid cells with 46 chromosomes!)

Meiosis is sperm/egg division and must divide twice to produce FOUR sperm or egg cells. Sperm goes through I- PMAT just like mitosis, but goes through PMAT again after that! They create four Haploid gametes (sex cells) with 23 chromosomes so that when an egg and a sperm unite in sexual reproduction, the zygote (fertilized egg) will have exactly 46 chromosomes like the normal number of chromosomes in a somatic cell. ^^

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The Punnett square predicts the ratio of genotypes in the offspring based on the genotypes of the parents. Which Punnett square represents a cross between a mom who is heterozygous for dimples and a dad who is homozygous for no dimples?A Punnett square is shown. The columns are labeled Upper D and Upper D. The rows are labeled d and d. Clockwise from upper left the boxes contain: Upper D d, Upper D d, Upper D d, Upper D d.A Punnett square is shown. The columns are labeled Upper D and d. The rows are labeled d and d. Clockwise from upper left the boxes contain: Upper D d, d d, d d, Upper D d.A Punnett square is shown. The columns are labeled Upper D and d. The rows are labeled Upper D and d. Clockwise from upper left the boxes contain: Upper D Upper D, Upper D d, d d, UpperD d.A Punnett square is shown. The columns are labeled Upper D and Upper D. The rows are labeled Upper D and Upper D. Clockwise from upper left the boxes contain: Upper D Upper D, Upper D Upper D, Upper D Upper D, Upper D Upper D.

The presence of an epiphyseal plate indicates that _______ the bone is broken. the bone is dead. the bone is increasing in diameter. the bone is lengthening. the bone is no longer lengthening.