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Elena L [17]
3 years ago
14

Does anyone know what I should write?

Biology
2 answers:
Aliun [14]3 years ago
5 0
I think it’s backwards
dimaraw [331]3 years ago
3 0
Make this visable I can’t read
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Bone formation begins when ____________ secrete the initial semisolid organic form of bone matrix called ____________ .
butalik [34]

Answer:

a. osteoblasts

b. osteoid

Explanation:

Osteoblasts are the fundamental cell of bone tissue. They are the cells that synthesize the bone matrix called osteoid from which it is made from the skeleton of bone fish, to the skeleton of humans. Since the bone skeleton is an evolutionary paraphiletic characteristic (it is present in several taxonomic groups that have evolved from the same ancestor).

Osteoblasts are responsible for the development and growth of bones during the juvenile stage of individuals and are also responsible for maintaining adult bone and regenerating bone when it breaks.

Osteogenesis is the process of differentiation of osteoblasts. The cells from which osteoblasts differ are called osteoprogenitors. The differentiation of osteoprogenitor cells, which come from the mesoderm, periosteum or bone marrow, is induced by growth factors called bone morphogenetic proteins (BMPs), capable of inducing the growth of bone, cartilage or connective tissue. When an osteoprogenitor cell receives a BMP signal, it quickly begins to express the genes to generate collagen, osteonectin and alkaline phosphatase, among other compounds necessary for bone growth. When the bone grows, it ends up wrapping some of the osteoblasts and they lose their ability to replicate, at that time they are dedicated to bone maintenance and not to their synthesis and are called osteocytes.

6 0
3 years ago
How do leaves provide food for a plant?​
Rudik [331]

Answer:Plants make food in their leaves. The leaves contain a pigment called chlorophyll, which colors the leaves green. Chlorophyll can make food the plant can use from carbon dioxide, water, nutrients, and energy from sunlight. This process is called photosynthesis.

Explanation:

3 0
3 years ago
Read 2 more answers
describe two alternative photosynthesis pathways found in plants suggest how how these adaptions might help plants
klio [65]

a. Sugar cane, corn, carbgrass which are identified as C4 Plants allow fixation of carbon dioxide into four carbon compounds. This happens during the  hottest time of the day - their so-called stomata gets partially closed. C4 plants have been identified to lose only half of the water that C3 plants lose when they produce the similar amount of carbs.

<span>b.CAM PATHWAY - Plants such as pineapples and cactus have different approach to adapting heat. Carbon is fixed through a cam pathway. They use it to open their stomata at night and close it in the morning.</span>

4 0
3 years ago
A metabolic pathway must provide the desired chemical (metabolite) at the rate required for cellular and tissue function. to acc
Galina-37 [17]

Answer;

"couples" energetically unfavorable reactions to ATP condensation in order to drive the reaction toward the required product.

Explanation;

-Metabolic pathways are designed to synthesize necessary cellular reagents as required for cellular and tissue function. To accomplish this, the reaction sequence includes both reactions that are essentially irreversible and reactions that are freely reversible (near equilibrium).

-In most cases, cells use a strategy called reaction coupling, in which an energetically favorable reaction (like ATP hydrolysis) is directly linked with an energetically unfavorable (endergonic) reaction.


8 0
3 years ago
To solve a problem using the equation for Kepler’s third law, Enrico must convert the average distance of Mars from the Sun from
vovikov84 [41]

Answer:Enrico must multiply the distance of mars from sun (meters) with the 6.6844\times 10^{-12} to convert the distance in astronomical units.

Explanation:

1 astronomical unit  = 1.496\times 10^{11} m

1m=\frac{1}{1.496\times 10^{11} } AU=6.6844\times 10^{-12} AU

Let the distance between the sun and Mars be Y( meters)

Distance in AU= Y\times 6.6844\times 10^{-12} AU

Enrico must multiply the distance of mars from sun (meters) with the 6.6844\times 10^{-12} to convert the distance in astronomical units.

3 0
3 years ago
Read 2 more answers
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