Answer:
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"a" is the most probable answer but needs some elaboration.
Spiders eat their food through a process called external digestion. The gut, intestine and esophagus of a spider are designed to take in mostly liquids. The spider regurgitates digestive fluids onto the prey to digest it working more or less as a tenderizer. Once the prey begins to liquefy, it is chewed with the jaws (chelicerae) and the fluid is sucked back into the mouth together with some liquefied "'meat" from the prey.
The spider repeats this process as often as necessary to digest and ingest all but the inedible hard parts.
Answer:
Touching, Smelling.
Explanation:
Touching will be useful to detect stimuli like coldness and hotness.
Smelling on the other hand will help to make observations on smell and change in smell. These two are among the five senses that we use to make observations as we record what we see, hear, touch and feel, smell and taste.
Answer:
The HYPOTHESIS
Explanation:
In an experiment, the formulation of the hypothesis is a critical part of the scientific method. The hypothesis is testable explanation given after making an observation in an experiment. In other words, an hypothesis is a predictive statement given that is subject to testing via experimentation.
The essence of formulating an hypothesis is to relate the effect of a possible solution on an observed problem. The "hypothesis" section of a laboratory report is usually identified by the use of an IF and THEN phrases in the statement. IF represents the cause, while THEN represents the effect. For example, a hypothesis can read; If plants are placed under white light (cause), then they will grow faster in height (effect).
Answer:DNA has three types of chemical component: phosphate, a sugar called deoxyribose, and four nitrogenous bases—adenine, guanine, cytosine, and thymine. Two of the bases, adenine and guanine, have a double-ring structure characteristic of a type of chemical called a purine.
Explanation: