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3 years ago

Three organelles (cell parts) found in plant cells, but not animal cells?

1 answer:

8 0

1. The Cell Wall.

Plants have a cell wall in order to maintain rigidity and stability. Animal cells do not have a cell wall because they have a different structure, which makes them more flexible and able to move around easier.

2. Chloroplasts

Since plants cannot move, they get their energy from the sun. This energy is made inside of the chloroplasts. Animal cells don't have chloroplasts because their energy comes from other organisms.

3. Central Vacuole

The central vacuole provides structure and holds materials and wastes, and also decomposes those wastes. Animal cells don't have a central vacuole because they have lysosomes and normal vacuoles that do the same function.

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Specialized cells called. <br> cells help move the skeleton and help the heart beat and pump blood.

Novosadov [1.4K]

Answer:

pacemaker cells.

Explanation:

Cardiac muscle tissue works to keep your heart pumping through involuntary movements. This is one feature that differentiates it from skeletal muscle tissue, which you can control. It does this through specialized cells called pacemaker cells.

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3 years ago

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Situations in which there is more than one dominant allele and BOTH alleles contribute to the phenotype when in the heterozygous

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codominance for example blood groups

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3 years ago

On ten acres of native forest there are eight white-tailed deer, seven coyotes, 45 armadillos, and 231 loblolly pine trees. Whic

Natasha2012 [34]

loblolly pine trees

Explanation:

Population density refers to the amount of organisms living in a particular area:

Population density = $\frac{number of organisms}{Area}$

Area of the forest = 10acres

Population densities of:

White-tailed deer = $\frac{8 white tailed deer}{10acres}$

= 0.8white tailed deer/acres

Coyotes = $\frac{7 coyotes}{10acres}$ = 0.7coyotes/acres

Armadillos = $\frac{45 armadillos}{10acres}$ = 4.5armadillos/acres

loblolly pine = $\frac{231loblolly pine trees}{10acres}$ = 23.1loblolly pine trees/acre

The population with the highest density is that of the loblolly pine trees with 23.1 of the trees in an acre.

learn more;

Population brainly.com/question/13181732

#learnwithBrainly

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3 years ago

What is one way that cellular respiration differs from photosynthesis?

Ugo [173]

Answer:O The final product of cellular respiration is electromagnetic radiation.

The energy conversion in cellular respiration takes place in the chloroplast.

The main source of chemical energy in cellular respiration is water.

Explanation:

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2 years ago

John has repeatedly been taking a painkiller for his back pain. one day, his doctor instead gives him a different pill, which co

Kisachek [45]

Answer: Placebo effect

John is experiencing placebo effect where the pill that contains no pain killing medication has given pain relief to John. A placebo is a substance with no therapeutic effect but sometimes improves patient’s condition. This is due to patient’s expectation that the pill they take can help or ease the pain they have even if no active ingredient is present.

Therefore, the effect is more than positive thinking or believing that a treatment will work by creating a stronger connection between the brain and body as they work together.

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3 years ago