Organ systems work together to meet the needs of the human body. How is the skeletal system related to the nervous system?

A.The skeleton protects the brain and spinal cord.

B.The brain determines how the skeleton develops.

C.The brain and spinal cord hold the skeleton together.

D.The skeletal system works as a part of the nervous system.

Answers

Answer 1
Answer:

Answer:

C

Explanation:


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How many different gametes can an RRYy parent form?

Answers

An RRYy parent can form four different gametes: RY, Ry, rY, and ry.

What are gametes?

Gametes are reproductive cells that are responsible for the genetic makeup of offspring. In animals, these cells are known as sperm and eggs, and in plants, they are known as pollen and ovules.

Gametes contain half the number of chromosomes as the parent cell, allowing for genetic recombination and diversity in offspring during sexual reproduction.

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A RRYy parent can form two different gametes - RY and Ry.

The transfer of pollen from the stamen of a flower to the pistil is called

Answers

The transfer of pollen from the stamen of a flower to the pistil is called pollination.

This process is known as pollination.

-  Prodixy ☕

A researcher wants to test how diets A and B affect the weight loss of rabbits. She has 20 rabbits to use, but all of the rabbits are different sizes, which might affect how much weight they lose. The researcher decides to group the four smallest rabbits in one group, the next four smallest rabbits in another group, etc., until the final group has the four largest rabbits. Then, from each group she randomly selects two rabbits to have diet A, and the remaining rabbits in the groups have diet B.Select all that apply:
A. This is an example of a block design.
B. This is an example of a completely randomized experiment
C. This is an example of a matched pairs experiment.
D. The treatments are diets A and B.
E. The treatment is how much weight a rabbit loses.
F. The experimental units are the 20 rabbits.
G. The experimental units are diets A and B

Answers

Answer:

A. This is an example of a block design.

D. The treatments are diets A and B.

F. The experimental units are the 20 rabbits.

Explanation:

The randomized block designs are used in experiment when there is only one variable of prime importance but along with it there are several nuisance factors. As in this case, the prime variable is the impact on weight of rabbits when they consume one the given diets. However, several nuisance factors are unequal weights of the rabbit, different class of rabbits, eating habits of rabbit, time of feeding etc.  

Treatment in an experiment is the independent variable that is varied to measure its impact on the subjects of the experiment.  

Here these independent variables are diet type A and B and the subject is the group of 20 rabbits. Subjects are also referred as experimental unit i.e on which the experiment is being conducted

Hence, option A, D and F are correct

Which of the numbered labels is pointing to a transport organelle in the diagram?

Answers

Endoplasmic Reticulum

ER Golgi apparatus, because it packages proteins received from the ER cytoplasm 


The Golgi body are the ones that slightly alter, organize and prepare so-called parcels to be delivered for all the organelles in the cell. They receive these packages mainly in the rough endoplasmic reticulum. These packages that set out by Golgi body are macromolecules that used and synthesized by cells in many operations. If ER is absent then it would only mean that Golgi body would have no use other than simply lysosomes but these macromolecules plays a dynamic role in many organelles –nutrients, ATP and cell metabolism. It'll have a ripple effect if ER is absent in the cell.

For USA test prep it's 6 and 7 :)

From the food web below, which organism is the primary consumer? The picture shows a food web. It consists of phytoplankton (producer), zooplankton (primary consumer), small fish and crustaceans (secondary consumer), large fish (tertiary consumer), and marine mammals and people (quaternary consumers).

Answers

Final answer:

The primary consumer in the food web is the zooplankton.

Explanation:

In the given food web, the primary consumer is the zooplankton. The primary consumers are organisms that consume producers, which in this case are the phytoplankton. Zooplankton are small organisms that eat the phytoplankton, making them the first level of the food chain.

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5 The diagram below represents two processes thatoccur in organisms. A characteristic representedby X is common to both of these processes.ActiveDiffusionXTransportA characteristic that the two processes have incommon is that each process(3) uses oxygen(1) uses ATP(2) requires enzymes(4) moves molecules

Answers

Answer: Move substances

Explanation:

The process of diffusion and active transport are some of the process inside the body which helps in transportation of the materials from one place to another.

The substances move a region of higher concentration to lower concentration  in case of diffusion and with the help of energy the molecules moves from lower concentration to higher concentration.

The correct answer is option D.

diffusion doesnt required energy or atp enzyme, and oxygen. it just need different concentration between two substance and semipermeable membrane if it is diffusion in water that usually we call as a osmosis.

otherwise they both move molecules, certain molecules somtime in transport active