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Bogdan [553]
2 years ago
11

What important milestone happens with the fetus during the second trimester?

Biology
2 answers:
blondinia [14]2 years ago
7 0
The answer is a. I learned about this in psychology.
Masteriza [31]2 years ago
5 0
The answer is a I know it
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Jake broke his fibula and had to wear a cast for six weeks. The muscles attaching to this bone atrophied (shrank) during this ti
likoan [24]

Answer:

Explanation:

One of the functions of the muscle is the storage of amino acids which can be used for energy production when demands are high or for protein synthesis. But during muscle atrophy, this function becomes reduced which could lead to the particularly muscle been unable to stretch or contract due to weakness, it could also lead to the imbalance between protein synthesis and degradation.

5 0
3 years ago
DNA is a nucleic acid involved in heredity, or the passing down of genetic traits from one generation to the next. DNA consists
Phoenix [80]

Nitrogenous base DNA consists of four unique nucleotides that each contain one unique nitrogenous base—adenine (A), thymine (T), cytosine (C), or guanine (G).

The specific arrangement of these four bases within the DNA of each organism gives that organism its unique traits; here are the arrangements:

-<u>Adenine</u> is paired with <u>Thymine</u> (think of A for apple and T for tree)

-<u>Cytosine</u> is paired with <u>Guanine</u> (think of C for car and G for garage)

search "DNA base pairs" and go to images for better understanding

5 0
2 years ago
Which of the following statements is the most likely explanation for plant withering due to leaky membranes in cold temperatures
podryga [215]

Answer:

C. H+ ions do not accumulate inside the thylakoid, so ATP synthase makes too little ATP.

Explanation:

Plant withering refers to the virtual death of plant cells due to lack of food. During the light-dependent reactions of photosynthesis, ATP needed for the synthesis of sugar (food) is created in the thylakoid membrane of the CHLOROPLAST of plant cells.

In the light-dependent reaction, hydrogen ions (H+) builds up/accumulate in the thylakoid lumen to create an electrochemical or proton gradient i.e. a difference in the concentration of H+ ions across the membrane. The hydrogen ions passes through a protein complex called ATP synthase, which forms ATP from ADP (by adding phosphate group), from the energy generated by the electrochemical gradient formed as a result of hydrogen in (H+) build up.

Hence, a plant that possess leaky membrane due to the cold temperature will likely wither because H+ ions are not able to accumulate inside the thylakoid causing a proton gradient, so ATP synthase makes too little ATP.

4 0
2 years ago
B. What are two examples that can be found inside a cell?
valentina_108 [34]

Answer:

Nucleus and chorlophlast

Explanation:

5 0
3 years ago
Read 2 more answers
After hydrogen and oxygen, which element makes up almost all of the most common substances in your body?
Vedmedyk [2.9K]

Answer:

B. Carbon

Explanation:

Hydrogen.... 59%

Oxygen..... 24%

Carbon..... 11%

Nitrogen....4%

4 0
2 years ago
Read 2 more answers
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