What type of joint allows us to turn our head?

Answers

Answer 1

Answer: The atloaxoid joint Which is a type of pivot joint, allows us to turn our head!

Hope this helps!

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By what mechanism does a diploid animal grow after fertilization?mitosis
binary fission
isogamous fertilization
meiosis

Answers

Mitosis. After fertilization, the cells in the zygote divide rapidly (by mitosis) to form a morula, which becomes the embryo after approximately five days. The fetus is present about eight weeks after the fertilization takes place.

it is mitosis because after fertilization the groth of somatic cells stars

Which sediments typically make up the C horizon?

Answers

The correct answer is sand, silt, and clay. These three sediments are the ones who make up the C horizon. This layer is located right below the B horizon and which is known to be a delicate layer since it has a weak pedological development compare to others.

Which can reduce the amount of organic material discarded in landfills? A. biomass energy
B. solar energy
C. water energy
D. wind energy

Answers

Answer: A

Biomass energy can reduce the amount of organic material discarded in landfills.

Which statement is true of a placenta?a. The placenta passes oxygen, nutrients, and other useful substances from the fetus to the mother.
b. The placenta passes oxygen, nutrients, and other useful substances from the mother to the fetus.
c. The placenta mixes blood from the mother and fetus together.
d. The placenta protects the mother from being attacked by the fetal immune system.

Answers

The answer is definitely B

DDT was widely used as a pesticide for 20 years. Its use was banned after studies showed severe side effects were evident in humans, the environment, and animals as a result of DDT. Why were the side effects of DDT so harmful?A. DDT kills insects and other pests.
B. DDT decomposes.
C. DDT was genetically engineered.
D. DDT bioaccumulates.

Answers

Out of the choices given, the side effects of DDT were so harmful because of the DDT bioaccumulates. The correct answer is D.

Answer: D. DDT bioaccumulates

Bioaccumulation is the accumulation of substances or compounds such as pesticides, fertilizers or other chemicals in the body of the organisms. These substances or compounds are toxic and remain undigested in the body of the organisms are transferred subsequently in a food chain, when one organism is consumed by another organism. The highest trophic level is most effected because of the concentration of the toxic substance is the maximum.

DDT (dichlorodiphenyltrichloroethane) is a colorless, odorless and tasteless crystalline chemical compound. It is used as a pesticide to kill pests in agricultural field. DDT is highly toxic chemical compound. It remains undigested in the body of the organism and transferred in a food chain when one organism is consumed by another organism. The effect of DDT is magnified several times in the top most trophic level in the food chain due to bioaccumulation.

Traumatic injuries, such as that suffered by Christopher Reeves (an actor that portrayed Superman years ago) can affect a variety of functions of the body. The dysfunctions are dependent upon the level in the spinal cord the damage occurred and what aspect(s) of the cord is damaged. In this posting, you are to describe the organization schemes of the spinal cord (both anterior-posterior as well as internally).

Answers

The spinal cord is divided into 31 segments with 31 pairs of nerves exiting the cord - 8 cervical, 12 thoracic, 5 lumbar, 5 sacral, and 1 coccygeal nerve.
In respect of internal structure of the cord, there are white matter in the periphery and gray matter inside. In the center there is a thin canal filled with cerebrospinal fluid.

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Ammonia is released from dead plants by(A) denitrifying bacteria. (B) nitrogen-fixing bacteria. (C) bacteria of decay. (D) nitrifying bacteria. (E) none of the above.

What must happen for a solar eclipse to occur?a)The moon must pass behind Earth. b)The moon must be full. c)The moon's orbit must cross the plane of the ecliptic. d)The moon's orbit must not cross Earth's penumbra.

Katherine owns the trendy boutique where Clara works as a shop assistant. Deanne loves the clothes in Katherine's boutique and shops there often. Which of these three people is a consumer? Select one of the options below as your answer:a. Katherine b. Clara c. Deanne

If an electron is gained, the atom has a ? Charge