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gregori [183]
3 years ago
5

Why is rare to find fossils of animals from before the Cambrian period?

Biology
1 answer:
Vesna [10]3 years ago
6 0
The Cambrian explosion. Trilobites were found because of their hard shell, unlike soft bodied creatures.
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A student placed a disk of filter paper in each of the following solutions: disinfectant 1, disinfectant 2, disinfectant 3, and
beks73 [17]
<span>d. Disk soaked in distilled water

Experimentation is a scientific process wherein you test and verify a hypothesis based on its assumption is going to be supported or negated (null hypothesis). Hence experimentation involves the independent and dependent variable, also control variable as a level in the IV. </span>
8 0
3 years ago
The membrane that surrounds a cell acts as a gateway. This helps the cell stay healthy. Why does the cell need a gateway?
guapka [62]
I think it might be C I am not 100% sure though
3 0
3 years ago
Which of the following structures would you expect to find in a single-celled organism?. A) internal organs. . B) legs and feet.
Karo-lina-s [1.5K]

The correct answer is:

C) outer covering

The structure that you should expect to find in a single celled organism is : C. outer covering.Single celled organism still hasn't developed a complex body structure, so it definitely won't have legs, internal organs, or brain.

Explanation:

None of the other answers can happen due to the combined solutions disability to reach the center of the organism, smaller cells in higher numbers are more effective as they can group commonly yet all receive the right amounts of nutrients for its need. multicellular organisms, such as humans can have the other answers in them as cells group collectively to make skin, muscles, and organs. it also provides the body to grow larger.



7 0
3 years ago
Read 2 more answers
Which statement describes Mendel’s hypotheses regarding gametes?
anyanavicka [17]
A. A gamete carries to genes for a trait.
B. A gamete carries one allele for a gene.
C. A gamete can carry multiple alleles for a trait.
D. Some gametes are dominant and some are recessive.
3 0
3 years ago
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To help explain surface tension, use a single water molecule in the template, and draw arrows representing the possible location
kramer

Answer:

The correct representation is attached with the explanation.

Explanation:

In this representation of the surface tension, blue arrows between green water molecules are the possible molecules that can be used as the location for forming hydrogen bonds by a single molecule. Surface tension is the tendency of a liquid surface strectch to neighbouring molecules or ability to shrink in minimum surface area possible. Hydrogen bonds is an intermolecular force or interaction responsible for the surface are of liquide molecules. This bonds is towards every direction where the similar molecule present.

3 0
3 years ago
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