BIOLOGY HIGH SCHOOL

Parasitism is whenOne organism benefits from another without it being affected
Both organisms benefit from a relationship
One organism feeds off another, making it weak or killing it
Both organisms are hurt from a relationship

Answers

Answer 1
Answer: Parasitism is when- one organism feeds off another, making it weak or killing it.
Answer 2
Answer: It would be when one organism feeds off another making it weak or killing it.

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The connection between the mother and the embryo that provides the embryo with oxygen and nutrients and waste disposal is the ______.A.) amnion
B.) cervix
C.) fallopian tube
D.) placenta

Answers

The correct answer among the choices listed above is option D. The connection between the mother and the embryo that provides the embryo with oxygen and nutrients and waste disposal is the placenta. Hope this answers your question. God Bless.
D. Placenta (Through the umbilical cord)

20. Which of the following accurately describes carbon atoms? A. Carbon atoms are only found in two of the four main macromolecules. B. Carbon atoms only have three electrons available for bonding. C. Carbon atoms can bond to other carbon atoms. D. Carbon atoms can only form triple bonds with other carbon atoms.

Answers


C. Carbon atoms can bond to other carbon atoms.

Carbon stored in plants reaches the atmosphere via cellular respiration. Cellular respiration is the set of metabolic reactions that allows plants to convert the energy from nutrients into ATP (adenosine triphosphate) and then release the waste products. The energy from the glucose molecules is broken down into ATP. Water and carbon dioxide are also required to convert the nutrients into ATP. In our case, carbon and oxygen are waste products so they are released into the atmosphere via the pores underneath the leaf of a plant or tree.


A student poses the question: How does the presence of dissolved salt affect the freezing point of water? To answer this question, the student set up two conditions. In the first condition, the student added salt to water in a container and referred to this condition as the variable. In the second condition, the student did not add any salt to water in a second container and referred to this condition as the control. The student took both containers and attempted to freeze the water at various temperatures to assess the freezing point. Would this be a valid experiment? A. Yes, because there is more than one variable.
B. Yes, because there is one variable and a control
C. No, because there is not more than one variable
D. No because there is only one variable and a control

Answers

Answer:

The correct answer is option B. yes because there are one variable and a control.

Explanation:

The validity of experiments can be tested by the four components of experiments. These four components are control, dependent variable, independent variable, and constants. All of this basic component is the validity of the experiments.

In this experiment there is the control where experiment is performed within controlled and there is also one variable.

Thus, the correct answer is option B. yes, because there are one variable and a control.

Answer:

The correct answer will be option-B.

Explanation:

A scientific experiment must contain three variables: independent variable (which can be manipulated), dependent variable(which can be tested) and control (which is kept constant).

Experimental samples must be divided into two groups: an experimental group in which variable to be studied is tested and a control group in which the independent variable does not influence the experiment.

In the given question, since experimental design contains variables and the experimental as well as the control group which act as a reference group to the experiment.

Therefore, Option-B is the correct answer.

Resistance of the skin to invading organisms is __________.a. acquired immunity
b. humoral immunity
c. cellular immunity
d. innate immunity

Answers

The correct answer is (d.) innate immunity. The resistance of the skin to the invading organism is innate immunity. The innate immunity is comprising of the cells and mechanism for defending the body from pathogens. The cells recognize and respond to the pathogens that is acting to enter the body.

What three systems supply most of the world's food?

Answers

Answer:

Croplands, range lands, pastures

Explanation:
Croplands,rangelands, pastures

8. Unlike weather, climate A. describes the average conditions and atmospheric patterns of a region over time.
B. describes the day-to-day condition of the atmosphere of Earth.
C. involves variations in precipitation.
D. involves variations in temperature.

Answers

Unlike weather, climate describes the average conditions and atmospheric patterns of a region over a period of time. Weather is the day-to-day atmospheric conditions. It includes windy days, sunny, rainy, cloudy and etc. Weather then describes the state of an atmosphere at a place and time to its heat, dryness, sunshine, wind, rain. Climate on the other hand is the prevailing conditions of an area over a period of time, for instance, tropical climate.
It is climate (A) that describes the average conditions and atmospheric patterns of a region upon the Earth, over a period of time. It is distinctive from the weather which describes the specific meteological activity taking place at a specific time and in a specifc location upon the Earth.
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Which statement describes a limitation of the kinetic-molecular theory for a gas?a. The theory assumes that particles do not experience intermolecular forces. b. The theory states that pressure is inversely proportional to volume. c. The theory assumes that particles are in random and continuous motion. d. The theory states that pressure increases with temperature.
Only _____ of forests still exist from when Europeans first arrived in the continental US, creating a need for forest conservation.a. 10% c. 15% b. 20% d. 5%