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Nonamiya [84]
3 years ago
10

Plant cells have cell walls, but animal cells don’t. Why might that be?

Biology
1 answer:
sattari [20]3 years ago
8 0

Answer:

plant cell need cell wall whereas animal cell do not because the plants need rigid structure so that they can grow up and out. Cells have cell membrane. The membranes can flex. Animal cells can have varios shapes, but plant cells only have the shapes of plant cell wall.

Explanation:

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The arrows in a food chain point from the organism ____________ the energy to the organism ___________ the energy
melamori03 [73]

Answer:

1. Supplying

2. Taking

Explanation:

Food chain is a linear relationship between organisms that depicts the flow of energy from one organism to another. In a food chain, organisms are arranged in trophic levels where arrows pointing to the right direction (➡) are used to show that the organim the arrow is pointing to eats the organism behind it.

Hence, according to this question, arrows in a food chain point from the organism SUPPLYING the energy to the organism TAKING the energy.

6 0
2 years ago
All parts of fungi are composed of ____________ , or thin filaments of cells, packed closely together to form the main body of a
MAVERICK [17]

The right answer is hyphae for the first gap, mycelium for the second gap.

The hyphae constitute the vegetative apparatus of the mushrooms, while the visible part, that which is improperly called mushroom, is in fact its reproductive apparatus.

Hyphae are less branched filaments consisting of a single cell that can be several centimeters long. They contain several nuclei and can sometimes be partitioned.

The mycelium is a part of the mushroom (composed by many hyphae), which is in the form of white filaments and grows about fifteen centimeters under the ground. It is this part of the mushroom that has therapeutic properties because the filaments of the mycelium are going to draw the minerals in the soil.

3 0
2 years ago
How does a dichotomous key help you identify unknown specimens based on their traits? Answer with details about the format and s
Aneli [31]
A dichotomous key helps you identify unknown specimens based on their traits because there are only two options available per trait. Selecting one from the two options (usually contrasting characteristics) from each step leads to smaller and smaller groups until the option is reduced to single and unique trait of an organism.

Considering you need to identify an organism. So, on the top of they key is animal with options: (a) with red blood cells and (b) no red blood cells. The option you will select is no red blood cells and under option b, you’re given two choices again: (a) hard bodies and (b) soft bodies. You’ll select soft bodies, then two options again are given: (a) with shell and (b) without shell. The option you’ll select would be without shell, and so on.
4 0
2 years ago
Read 2 more answers
Much of the regulation of gluconeogenesis is a result of the inhibition of ________. Much of the regulation of gluconeogenesis i
Monica [59]

Answer:

The correct answer will be option- Glycolysis.

Explanation:

Gluconeogenesis is a metabolic pathway which synthesizes glucose from non-sugar precursors. This pathway is activated in the low concentration of glucose due to less intake or completely absent to conserve energy.

This pathway is somewhat the reverse of the glycolysis when excess energy is present as a result of glycolysis, gluconeogenesis is inhibited and when no energy is present, gluconeogenesis is activated.

Thus, option- glycolysis is the correct answer.

3 0
3 years ago
What did Charles Darwin discover as a result of his experiments with breeding pigeons?
Veronika [31]
Charles Darwin noticed that among the same species there were variations in traits based upon geographical location. These changes may have evolved from climate differences, predator/prey relationships and food sources. This particular experiment was intended to duplicate natural selection by demonstrating the concepts with artificial selection. The result was that over time, new traits could be bred for. Although there may be more than one correct answer here, the best answer is the first; desirable traits can be selected and bred in offspring.
4 0
3 years ago
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