Answer:
DNA, RNA, ATP, and the phospholipids that form all cell membranes
Explanation:
B. In maternal effect, an offspring will have the genotype of their mother.
C. In a reciprocal cross, if an offspring has the mother's phenotype for both crosses, cytoplasmic inheritance is responsible.
D. The direction of shell coiling in Lymnaea peregra is influenced by the orientation of the first cleavage division.
E. It is safe to say that a maternal effect is caused by the genotype, not the phenotype, of the parent producing the egg.
Answer:
Answer is D.
Explanation:
The first cleavage division can be explained or described as the series of first cellular division of the zygote after fertilization.
In this case, the process of recoiling of the shell of the snail can not be categorized as one of the examples at this stage.
Answer:
1- The immune system develops antibodies to the disease so that it cannot make you sick again.
2- Immunization describes the actual changes your body goes through after receiving a vaccine.
3- Immunization is the process whereby a person is made immune or resistant to an infectious disease.
4- Vaccines stimulate the body’s own immune system to protect the person against subsequent disease.
5- Immunity is the capability of multicellular organisms to resist harmful microorganisms from entering their cells.
6- Immunity is the ability of an organism to resist a particular infection or toxin by the action of specific antibodies or sensitized white blood cells.
7- Immunization is the action of making a person or animal immune to infection.
8- Vaccines strengthen the immune system.
Rain gauge
Wind vane
Anemometer
Barometer
b. tests experimental and control groups in parallel.
c. is repeated many times to make sure the results are accurate.
d. keeps all variables constant.
The correct answer is B. Tests experimental and control groups in parallel
Explanation:
In science, a controlled experiment is a type of experiment in which scientist intervene or manipulate variables. This often implies scientists use a control group in which the variable is constant and an experimental group that has a different treatment or changes in the variable studied. This allows scientists to evaluate the effect of the variable by comparing the results of both groups and thus confirm or discard a hypothesis. Therefore, a controlled experiment can be defined as on that "tests experimental and control groups in parallel".
A controlled experiment is one that tests experimental and control groups in parallel, with all other variables kept constant. This enables the scientist to observe the impact of a single variable.
A controlled experiment is one that can be defined as an experimental set up in which the scientist keeps all variables constant, except for the one being studied. The correct option here would be option 'b'. Such an experiment tests experimental and control groups in parallel.
This methodology allows the researcher to observe the effect of one variable on the study subject while ensuring that all other conditions remain the same. For example, if you were to experiment with plant growth, you might keep factors like sunlight, water, and type of soil constant while changing the type of fertilizer used.
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