There are ____ elements that can be found to occur in nature.a.20
b.118
c.112
d.92

Answers

Answer 1

Answer: There are 92 natural elements that can be found in nature the rest on the periodic table is man made.

Answer 2

Answer: There are 112 elements in the nature

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If all green plants in the world were distroyed which atmospheric gas will increase
Animals contribute to soil formation through decomposition of organic material. Please select the best answer from the choices provided T F
How did Watson and cricks model of DNA incorporate the research of other scientists ?

Most medicines have secondary symptoms called side effects.

Answers

True, most drugs have side effects which are usually undesirable to the user.

A hydrangea plant has blue flowers when grown in acidic soil, but has pink flowers when grown in basic soil. A clone of the pink-flowered plant is grown in acidic soil and produces blue flowers. This change in flower color is most likely due to:_____a. sexual reproduction in the plants
b. resulting in variationasexual reproduction in the plants
c. resulting in variationgenes being expressed in different ways due to environmental conditions
d. a gene mutation that occurred after the clone was produced

Answers

Answer:

Option C, resulting in variation genes being expressed in different ways due to environmental conditions

Explanation:

Several genetic traits are affected by both internal and external environmental conditions. Some common examples are – height , color of eye, hair color, skin color, and even some genetic diseases.

The internal environmental factors include – gender, temperature etc.

While the external environmental factors include drugs, chemicals, temperature, and light.

Hence, the external environmental condition i.e pH of soil is producing different color of flowers in a given plant

Hence, option C is correct

Which two parts of the Earth make up the lithosphere? inner core and mantle? inner core and outer core? mantle and outer core? crust and outer part of the mantle?

Answers

Answer: The crust and the outer part of the mantle

Explanation:

Answer:

The answer is: crust and outer part of the mantle

Explanation:

I took the test on k12 and when I reviewed it, it said this was the correct answer:)

. In fruit flies, normal wings are dominant and short wings are recessive. Construct a Punnett square wherein both parents are heterozygous for normal wings. Which of the following is the correct genotypic ratio for the F1 generation of this cross?25% of the offspring are homozygous for normal wings. 50% of the offspring are heterozygous for normal wings. 25% of the offspring are homozygous recessive for short wings.
75% of the offspring have normal wings, and 25% of the offspring have short wings.
50% of the offspring are heterozygous for normal wings. 50% of the offspring are homozygous recessive for short wings.
75% of the offspring are heterozygous for normal wings. 25% of the offspring are homozygous recessive for short wings.

Answers

Answer:

25% of the offspring are homozygous for normal wings. 50% of the offspring are heterozygous for normal wings. 25% of the offspring are homozygous recessive for short wings.

Explanation:

Let dominant allele be A and recessive allele be a

Parent 1: heterozygous normal wings = Aa

Parent 2: heterozygous normal wings = Aa

Parent 1 X Parent 2 :

A a

A AA Aa

a Aa aa

Genotype of progeny will be as follows:

1/4 or 25% = AA = homozygous dominant for normal wings

1/2 or 50% = Aa = heterozygous normal wings

1/4 or 25% = aa = homozygous recessive for short wings

Normal wings = WW
Short wings = ww

The Parents = Ww x Ww

A. 25% are homozygous dominate, 50% are heterozygous, 25% are homozygous recessive.

What is the cerebral cortex?

Answers

The outer layer of the cerebrum. *Psychology* it's the grey bit. It's what makes us human, because of it's connection to consciousness and stuff like that.

Which type of waves can be used to clear a blockage from small tubes in the kidneys? A: Sound waves and visible light B: X-rays and radio waves C: Radio waves and sound waves D: Visible light and X-rays

Answers

The types of waves that can be used to clear a blockage from small tubes in the kidneys are Sound waves and visible light.

What do you mean by Kidney?

The Kidney may be defined as a pair of bean-shaped organs on either side of your spine, below your rib, and behind your belly.

The sound waves and the visible light works in an optimum wavelength and bounce back from the kidneys or any other organ when they are focussed and return to the transducer for analysis.

Therefore, the types of waves that can be used to clear a blockage from small tubes in the kidneys are Sound waves and visible light.

To learn more about Kidneys, refer to the link:

brainly.com/question/26062461

#SPJ2

Answer:

A. sound waves and visible light

Explanation:

found on quizlet

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What are 3 adaptations that frogs have that make them amphilbians

All of the following are a part of the excretory system except the __________.