The head of a sperm contains the genetic material and species specific enzymes so that it can break down the eggs barrier to fertilize it. It’s flagella(whip like tail) of course helps with its ability to move. It also has mitochondria on its mid piece, which is right between the head and tail, which gives the sperm energy to move.
Answer:
<u>Fibrous joint</u>
Explanation:
Fibrous junctions represents the junctions which cannot move and are securely positioned. There are 3 kinds of fibrous junctions and suture is one of them. Sutures associates in positioning the shape of our face and are vividly known to occur in the cranium.
Suture is a type of rigid fibrous junction that allows very little motion and is most commonly found in the cranium. Sharpey's fibres join together the bones in the suture.
Answer and Explanation:
During an experiment, data from an experimental group are compared with the data of a control group. These two groups are identical in all aspects except for the independent variable that the researcher changes in the experimental group to observe how they affect the individuals. This variable keeps constant in the control group.
- The experimental group is the one that receives the experimental procedure, with changes in the independent variable. There can be several experimental groups. In the exposed example, the experimental groups are the different types of food.
- In the control group, the variable measured keeps constant, not influencing the results. This isolates the effect of the independent variable on the experiment and helps to find alternative explanations to the different results. The control group corresponds to the normal dry food.
- Manipulated variable: Refers to all the variables in an experiment that provoke a response in another variable. They are also known as independent variables. The researcher can change these variables to see what changes it implies in an object, process, trait, or anything that depends on them. In the exposed example, the researcher manipulates the type of food he gives to the cat.
- Responding variable: Refers to the dependant variable, which response depends on any change in the independent variable. A change in the dependent variable might be proportional or inversely proportional to the change in the manipulated variable. In the exposed example, the dependent variable is the response of the cat to the change of food.
- constants Feeding time with each type of food (one week per food)
Sassy being healthy
Sassy being picky
Answer:
Plankton use carbon to make carbonate (CO3) shells in the ocean. The shells sink and accumulate into layers of sediments and eventually rocks. Rocks are pushed deep into the earth and melt at subduction zones, dissolving the carbon. Volcanic eruptions release carbon dioxide into the atmosphere.
Explanation:
Answer:
Two nonmetals form a covalent bond
Explanation:
Because its a chemical bond that involves the sharing of electron pairs between atoms.
