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blondinia [14]
3 years ago
6

What is the BEST indicator of when a child is old enough to safely use a seat belt in a car?

Biology
1 answer:
Xelga [282]3 years ago
7 0

Answer:

The child requests to be allowed to use the seat belt.

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Cells are ____ for their function
julia-pushkina [17]

Answer:

Explanation:

Basic building blocks of all living things

8 0
3 years ago
Read 2 more answers
What accounts for the decrease in the length of an entire muscle?
bonufazy [111]

Answer:

Combined decrease in sarcomere length.

Explanation:

Sarcomere is the functional unit of the striated muscle tissue. The units get repeated between the two Z lines. The striation under the microscope is shown by the sarcomere.

Actin and myosin protein plays an important role in the muscle contraction. The individual length of the thick (myosin) and thin (actin) filament do not changes and slide over one other. But the sarcomere overall length decreases that result in muscle contraction.

Thus, the answer is combined decrease in sarcomere length.

6 0
4 years ago
In numerous studies, treatment of prion preparations with ionizing and UV radiation does not reduce transmission of disease; how
mel-nik [20]

Answer:

A. Prions do not contain genetic information, which is affected by ionizing radiation.

B. Denaturants may affect the tertiary structure of prions.

C. Prions are proteins.

Explanation:

Prions are the proteinaceous infectious particles that cause many degenerative diseases of neurons in both animals and humans. They consist of only protein and no DNA or RNA. Due to the absence of DNA or RNA as genetic material, these infectious particles are resistant to ionizing radiation. Ionizing radiations affect nucleic acids of pathogens to destroy them.

Denaturation of proteins affects their secondary and tertiary structures and leave them non-functional. Denaturation may be caused by changes in temperature, pH, disturbance of hydrogen bonds, etc. Therefore, to destroy prions, they need to be denatured.

7 0
3 years ago
How do you think our understanding of organisms would be different without the contribution and development or our current class
IRISSAK [1]

Answer:

It is important to have a standardized system of classification so people can easily identify different things. It allows scientists to identify, name and group different organisms. It is important so scientists are able to easily communicate about different organisms without confusion.

It is necessary to classify organisms because: It helps in the identification of living organisms as well as in understanding the diversity of living organisms. Classification helps us to learn about different kinds of plants and animals, their features, similarities and differences

if Linnaeus had not developed the taxonomy system there would be no organized way of naming or categorizing new organisms in the scientific community and around the world. Instead, all organisms would be categorized differently in every part of the world, with different names.if Linnaeus had not developed the taxonomy system there would be no organized way of naming or categorizing new organisms in the scientific community and around the world. Instead, all organisms would be categorized differently in every part of the world, with different names.

Explanation:

4 0
3 years ago
A scientist places 25 mg of bacteria in a culture for an experiment and he finds that the mass of the bacteria triples every day
Marizza181 [45]

Answer:

300%

Explanation:

The mass of the bacterial culture is triples everyday, meaning that after one day the culture will have 300% of the mass as the culture one day prior.

8 0
3 years ago
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