Which of these organisms is most likely to evolve within a short period of time?

Biology

1 answer:

xeze [42]3 years ago

4 0

Answer:

A Bacterium.

Explanation:

Bacterium reproduce much much faster than the other three, and with each generation, more chances of change in DNA

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Which is an example of one of the first plants to evole

vlabodo [156]

Answer:

"The fossil plant Elkinsia polymorpha, a “seed fern” from the Devonian period (about 400 million years ago) is considered the earliest seed plant known to date."

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3 years ago

Which type of organic molecule is a starch?

shusha [124]

The best answer is B.

Carbohydrates, also known as saccharides , are molecular compounds made from only three elements namely carbon, hydrogen and oxygen.

They are also known as sugars. Some of these sugars are simple molecules called monosaccharides, such glucose made from just one molecule. Other carbohydrate molecules are very large, such as starch.

Starch is made up of a large number of monosaccharides namely glucose. Plants use starch as a way to store glucose and also as food in some mitochondrial processes.

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4 years ago

The steps in the process of endochondral ossification are a: Ossification center forms in the diaphysis b: Cartilage calcifies a

yarga [219]

Answer:

f: Cartilage model develops

b: Cartilage calcifies and a bone collar forms

a: Ossification center forms in the diaphysis

c: Ossification centers form in the epiphyses

e: Epiphyseal plates ossify

d: Bone replaces cartilage

Explanation:

Endochondral ossification follows these steps.

(a) Mesenchymal cells differentiate into chondrocytes which develops a cartilage model of the future bony skeleton.

(b) Blood vessels on the edge of the cartilage model bring osteoblasts that forms a bony collar.

(c) Capillaries penetrate cartilage and deposit bone inside cartilage model, forming primary ossification center. Ossification center that forms in the diaphysis, the center of the bone, and is the source of bone development

(d) Cartilage and chondrocytes continue to grow at ends of the bone while medullary cavity expands and remodels. Ossification centers form in the epiphyses or the end points of the bones

(e) Secondary ossification centers develop after birth. Epiphyseal plates ossify

(f) Bone replaces cartilage

6 0

4 years ago

If the manta ray gets 50 kcal of energy by eating the

ruslelena [56]

Answer:

Clam get 5000 Kcal by eating the plankton

Explanation:

In any food chain the amount of energy transferred to the successive trophic level is ten percent of the energy available at the previous trophic level.

Here, manta ray gets 50 kcal of energy by eating the starfish

The amount of energy contained in star fish is equal to

$0.1 * X = 50 \\X = 500$ Kcal